{"id":3114,"date":"2026-02-25T23:10:54","date_gmt":"2026-02-25T23:10:54","guid":{"rendered":"https:\/\/renewasoft.com.tr\/?p=3114"},"modified":"2026-02-28T01:06:30","modified_gmt":"2026-02-28T01:06:30","slug":"titresim-analizi-ile-rulman-arizasi-hes-ekipmanlarinda-en-yaygin-sinyaller-ve-erken-teshis-yaklasimlari","status":"publish","type":"post","link":"https:\/\/renewasoft.com.tr\/index.php\/tr\/2026\/02\/25\/titresim-analizi-ile-rulman-arizasi-hes-ekipmanlarinda-en-yaygin-sinyaller-ve-erken-teshis-yaklasimlari\/","title":{"rendered":"Titre\u015fim Analizi ile Rulman Ar\u0131zas\u0131: HES Ekipmanlar\u0131nda En Yayg\u0131n Sinyaller ve Erken Te\u015fhis Yakla\u015f\u0131mlar\u0131"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text css=&#8221;&#8221;]<\/p>\n<h1>Titre\u015fim Analizi ile Rulman Ar\u0131zas\u0131: HES Ekipmanlar\u0131nda En Yayg\u0131n Sinyaller ve Erken Te\u015fhis Yakla\u015f\u0131mlar\u0131<\/h1>\n<p><strong>Giri\u015f<\/strong><\/p>\n<p>Hidroelektrik santrallerde t\u00fcrbin ve jenerat\u00f6r rulmanlar\u0131, y\u00fcksek y\u00fck alt\u0131nda ve uzun s\u00fcreli \u00e7al\u0131\u015fmaya maruz kalan kritik bile\u015fenlerdir. Bu rulmanlarda olu\u015fan lokal hasarlar, temas an\u0131nda impulsif titre\u015fimler \u00fcretir ve bu titre\u015fimler sistemin dinamik transfer fonksiyonundan ge\u00e7erek \u00f6l\u00e7\u00fclebilir sinyallere d\u00f6n\u00fc\u015f\u00fcr [2]. Lokal ar\u0131zalarda olu\u015fan bu darbeler deterministik de\u011fil, stokastik karakter ta\u015f\u0131r ve \u00e7o\u011fu durumda \u00e7evresel mekanik sinyaller taraf\u0131ndan maskelenir [1].<\/p>\n<p>Bu nedenle rulman ar\u0131zalar\u0131n\u0131n erken te\u015fhisi, yaln\u0131zca genel titre\u015fim seviyesinin izlenmesiyle de\u011fil; impulsif bile\u015fenlerin ayr\u0131\u015ft\u0131r\u0131lmas\u0131, uygun frekans bantlar\u0131n\u0131n se\u00e7ilmesi ve envelope analizi gibi ileri sinyal i\u015fleme teknikleriyle m\u00fcmk\u00fcnd\u00fcr [1]. \u00d6zellikle d\u00fc\u015f\u00fck devirli hidro t\u00fcrbinlerinde ar\u0131za sinyalleri zay\u0131f ve g\u00fcr\u00fclt\u00fc alt\u0131nda oldu\u011fundan, do\u011fru feature \u00e7\u0131kar\u0131m\u0131 kritik \u00f6nem ta\u015f\u0131r.<\/p>\n<p><strong>TL;DR<\/strong><\/p>\n<ul>\n<li>Rulman ar\u0131zalar\u0131 lokal hasarlarda impulsif titre\u015fim \u00fcretir ve bu sinyaller stokastik karakter ta\u015f\u0131r [1][2].<\/li>\n<li>Karakteristik ar\u0131za frekanslar\u0131 (BPFO, BPFI vb.) demod\u00fclasyon ve envelope analizi ile belirginle\u015ftirilebilir [1][2].<\/li>\n<li>Spectral kurtosis ve kurtogram, optimal bant se\u00e7imi i\u00e7in etkili y\u00f6ntemlerdir [3].<\/li>\n<li>Hidroelektrik santrallerde d\u00fc\u015f\u00fck devir ve y\u00fcksek y\u00fck ko\u015fullar\u0131 sinyal maskelenmesini art\u0131r\u0131r [4].<\/li>\n<li>Titre\u015fim analiti\u011fi, erken te\u015fhis ve planl\u0131 m\u00fcdahale i\u00e7in kestirimci bak\u0131m\u0131n temel bile\u015fenidir.<\/li>\n<\/ul>\n<ol>\n<li><strong>Kavramlar ve Teorik Arka Plan<\/strong>\n<ul>\n<li><strong>Rulman Ar\u0131zas\u0131nda Titre\u015fim Sinyalinin Fiziksel Mant\u0131\u011f\u0131<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>Yuvarlanmal\u0131 rulmanlarda lokal bir hasar (\u00f6rne\u011fin i\u00e7 bilezik \u00fczerinde bir \u00e7atlak), her temas an\u0131nda k\u0131sa s\u00fcreli bir darbe \u00fcretir. Bu darbe, temas geometrisine, y\u00fck da\u011f\u0131l\u0131m\u0131na ve mil h\u0131z\u0131na ba\u011fl\u0131 olarak tekrar eder [2]. Hasarl\u0131 nokta her yuvarlanma eleman\u0131 ge\u00e7i\u015finde uyar\u0131ld\u0131\u011f\u0131ndan, zaman domeninde s\u00f6n\u00fcml\u00fc impuls dizisi olu\u015fur.<\/p>\n<p>Ancak bu sinyal, sistemin dinamik transfer fonksiyonundan ge\u00e7erken yay\u0131l\u0131r ve \u00e7evredeki di\u011fer mekanik bile\u015fenlerin titre\u015fimleriyle kar\u0131\u015f\u0131r. Bu nedenle \u00f6l\u00e7\u00fclen sinyal, saf periyodik bir dalga de\u011fil; stokastik ve impulsif karakterli karma\u015f\u0131k bir yap\u0131 g\u00f6sterir [1].<\/p>\n<p>Randall ve Antoni, lokal rulman ar\u0131zalar\u0131n\u0131n \u201cpseudo-cyclostationary\u201d olarak modellenebilece\u011fini ve deterministik di\u015fli sinyallerinden ayr\u0131\u015ft\u0131r\u0131labilece\u011fini g\u00f6stermi\u015ftir [1]. Bu ayr\u0131m, ar\u0131za te\u015fhisinde kritik \u00f6neme sahiptir.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Karakteristik Rulman Ar\u0131za Frekanslar\u0131<\/strong><\/li>\n<\/ul>\n<p>Lokal ar\u0131zalarda spektrumda belirli frekanslar belirginle\u015fir. Bu frekanslar rulman geometrisine ve mil h\u0131z\u0131na ba\u011fl\u0131d\u0131r:<\/p>\n<ul>\n<li>BPFO (Ball Pass Frequency Outer race)<\/li>\n<li>BPFI (Ball Pass Frequency Inner race)<\/li>\n<li>BSF (Ball Spin Frequency)<\/li>\n<li>FTF (Fundamental Train Frequency)<\/li>\n<\/ul>\n<p>Bu frekanslar, lokal hasar\u0131n hangi bile\u015fende oldu\u011funu belirlemeye yard\u0131mc\u0131 olur. McFadden ve Smith\u2019in modeli, tek nokta ar\u0131zada demod\u00fclasyon sonras\u0131 spektrumda bu karakteristik frekanslar\u0131n do\u011fruland\u0131\u011f\u0131n\u0131 g\u00f6stermi\u015ftir [2].<\/p>\n<p>Bu nedenle yaln\u0131zca genel RMS titre\u015fim seviyesine bakmak yeterli de\u011fildir; frekans domeni analizi \u015fartt\u0131r.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Envelope Analizi ve Bant Se\u00e7imi<\/strong><\/li>\n<\/ul>\n<p>Lokal rulman hasarlar\u0131nda darbe sinyali genellikle y\u00fcksek frekans bantlar\u0131nda ortaya \u00e7\u0131kar. Bu darbenin ta\u015f\u0131y\u0131c\u0131 rezonans frekans\u0131 \u00fczerinden genlik mod\u00fclasyonu olu\u015fturmas\u0131 nedeniyle, envelope analizi etkili bir te\u015fhis y\u00f6ntemidir [1].<\/p>\n<p>Ancak do\u011fru bant se\u00e7ilmezse impuls bile\u015fen maskelenebilir. Spectral kurtosis, hangi frekans band\u0131nda impulsif bile\u015fenin yo\u011funla\u015ft\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in kullan\u0131l\u0131r [3]. Kurtogram yakla\u015f\u0131m\u0131, envelope analizinden \u00f6nce optimal bant ge\u00e7iren filtre tasar\u0131m\u0131na imk\u00e2n sa\u011flar [3].<\/p>\n<p>Bu teknikler, \u00f6zellikle d\u00fc\u015f\u00fck devirli hidro t\u00fcrbin rulmanlar\u0131nda zay\u0131f sinyallerin ayr\u0131\u015ft\u0131r\u0131lmas\u0131nda kritik rol oynar [4].<\/p>\n<p>Bu hesaplamalar, spektrum yorumlamas\u0131nda hatal\u0131 te\u015fhisi \u00f6nlemek i\u00e7in kritik \u00f6neme sahiptir.<\/p>\n<div style=\"background: #f1f3f5;border-left: 6px solid #1f4e8c;padding: 25px;margin: 30px 0;border-radius: 8px;line-height: 1.7\">\n<p><strong style=\"font-size: 18px\">Teknik Not: Karakteristik Rulman Ar\u0131za Frekanslar\u0131n\u0131n Hesaplanmas\u0131<\/strong><\/p>\n<p>Yuvarlanmal\u0131 rulmanlarda karakteristik ar\u0131za frekanslar\u0131, rulman geometrisi ve mil h\u0131z\u0131na ba\u011fl\u0131 olarak hesaplan\u0131r:<\/p>\n<ul style=\"margin-top: 10px;padding-left: 20px\">\n<li><strong>BPFO:<\/strong> D\u0131\u015f bilezik ar\u0131za frekans\u0131<\/li>\n<li><strong>BPFI:<\/strong> \u0130\u00e7 bilezik ar\u0131za frekans\u0131<\/li>\n<li><strong>BSF:<\/strong> Yuvarlanma eleman\u0131 ar\u0131za frekans\u0131<\/li>\n<li><strong>FTF:<\/strong> Kafes frekans\u0131<\/li>\n<\/ul>\n<p>Bu frekanslar, mil devri (RPM), yuvarlanma eleman\u0131 say\u0131s\u0131, temas a\u00e7\u0131s\u0131 ve \u00e7ap oran\u0131na ba\u011fl\u0131d\u0131r. Envelope spektrum analizinde bu frekanslar\u0131n harmoniklerinin g\u00f6r\u00fclmesi lokal hasara i\u015faret eder [2].<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<ol start=\"2\">\n<li><strong>Titre\u015fim Analiti\u011fi Nas\u0131l \u00c7al\u0131\u015f\u0131r? (Sinyal \u2192 Feature \u2192 Alarm)<\/strong><\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3115\" src=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe-300x200.png\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe-300x200.png 300w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe-1024x683.png 1024w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe-768x512.png 768w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe-350x233.png 350w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe-540x360.png 540w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe-750x500.png 750w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe-600x400.png 600w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/43f7b86e-431c-403f-89d4-e8bfbe20bbbe.png 1536w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>(\u015eekil 1. Titre\u015fim verisinin ham sinyalden operasyonel karara kadar ge\u00e7ti\u011fi analitik s\u00fcre\u00e7 ad\u0131mlar\u0131n\u0131 g\u00f6stermektedir.)<\/p>\n<ul>\n<li><strong>Ham Sinyal ve \u00d6n \u0130\u015fleme<\/strong><\/li>\n<\/ul>\n<p>Titre\u015fim analizi, ivme sens\u00f6rlerinden al\u0131nan zaman domeni verisi ile ba\u015flar. Bu veri genellikle geni\u015f bantl\u0131d\u0131r ve hem rulman kaynakl\u0131 impulslar\u0131 hem de \u015faft, di\u015fli ve hidrolik etkileri i\u00e7erir. \u00d6zellikle hidroelektrik santrallerde d\u00fc\u015f\u00fck h\u0131z ve y\u00fcksek moment ko\u015fullar\u0131, sinyal genli\u011finin d\u00fc\u015f\u00fck fakat y\u00fck kaynakl\u0131 harmoniklerin g\u00fc\u00e7l\u00fc olmas\u0131na neden olabilir [4].<\/p>\n<p>Bu a\u015famada:<\/p>\n<ul>\n<li>G\u00fcr\u00fclt\u00fc azaltma<\/li>\n<li>Order tracking (devir dalgalanmas\u0131n\u0131n giderilmesi)<\/li>\n<li>Uygun bant ge\u00e7iren filtreleme<\/li>\n<\/ul>\n<p>gibi i\u015flemler uygulan\u0131r [1].<\/p>\n<p>Ama\u00e7, ar\u0131za kaynakl\u0131 impuls bile\u015feni m\u00fcmk\u00fcn oldu\u011funca g\u00f6r\u00fcn\u00fcr h\u00e2le getirmektir.<\/p>\n<ul>\n<li><strong>Feature \u00c7\u0131kar\u0131m\u0131 (\u00d6zellik \u00dcretimi)<\/strong><\/li>\n<\/ul>\n<p>Ham titre\u015fim sinyali do\u011frudan alarm \u00fcretmek i\u00e7in yeterli de\u011fildir. Bu nedenle belirli \u00f6zellikler (features) \u00e7\u0131kar\u0131l\u0131r:<\/p>\n<ul>\n<li>RMS (genel enerji seviyesi)<\/li>\n<li>Peak value (ani darbe genli\u011fi)<\/li>\n<li>Kurtosis (impulsiflik g\u00f6stergesi)<\/li>\n<li>Envelope spektrum tepe frekanslar\u0131<\/li>\n<\/ul>\n<p>Kurtosis de\u011feri, sinyalde ani darbe varl\u0131\u011f\u0131n\u0131 istatistiksel olarak g\u00f6sterir. Spectral kurtosis ise hangi frekans band\u0131nda impulsif bile\u015fenin yo\u011funla\u015ft\u0131\u011f\u0131n\u0131 belirlemeye yard\u0131mc\u0131 olur [3].<\/p>\n<p>Envelope analizi sonras\u0131 spektrumda BPFO, BPFI gibi karakteristik frekanslar\u0131n ortaya \u00e7\u0131kmas\u0131, lokal ar\u0131za g\u00f6stergesi olarak de\u011ferlendirilir [1][2].<\/p>\n<p>Bu a\u015fama, \u201csinyal i\u015fleme\u201d ile \u201ctan\u0131 koyma\u201d aras\u0131ndaki kritik k\u00f6pr\u00fcd\u00fcr.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Alarm \u00dcretimi ve E\u015fik De\u011ferlendirmesi<\/strong><\/li>\n<\/ul>\n<p>Feature\u2019lar belirlendikten sonra alarm mant\u0131\u011f\u0131 devreye girer. Bu mant\u0131k iki \u015fekilde \u00e7al\u0131\u015fabilir:<\/p>\n<ol>\n<li>Statik e\u015fik yakla\u015f\u0131m\u0131 (ISO 20816 gibi standartlara dayal\u0131 genel titre\u015fim s\u0131n\u0131rlar\u0131)<\/li>\n<li>Trend bazl\u0131 yakla\u015f\u0131m (zamansal art\u0131\u015f e\u011filimi)<\/li>\n<\/ol>\n<p>ISO 20816, makinelerin titre\u015fim seviyelerinin kabul edilebilir s\u0131n\u0131rlar\u0131n\u0131 tan\u0131mlar ve genel durum de\u011ferlendirmesi i\u00e7in referans sa\u011flar. Ancak lokal rulman ar\u0131zalar\u0131n\u0131n erken te\u015fhisinde envelope spektrum ve impuls g\u00f6stergeleri daha hassas y\u00f6ntemlerdir [1].<\/p>\n<p>Trend analizi, \u00f6zellikle d\u00fc\u015f\u00fck h\u0131zda \u00e7al\u0131\u015fan hidro t\u00fcrbinlerinde erken uyar\u0131 i\u00e7in daha etkilidir; \u00e7\u00fcnk\u00fc mutlak genlik art\u0131\u015f\u0131 s\u0131n\u0131rl\u0131 olabilir.<\/p>\n<div style=\"background: #f1f3f5;border-left: 6px solid #c0392b;padding: 25px;margin: 30px 0;border-radius: 8px;line-height: 1.7\">\n<p><strong style=\"font-size: 18px\">Risk Analizi: Yanl\u0131\u015f Bant Se\u00e7imi ve Sahte Alarm \u00dcretimi<\/strong><\/p>\n<p>Lokal rulman ar\u0131zalar\u0131nda impuls bile\u015fen genellikle belirli rezonans bantlar\u0131nda belirginle\u015fir. Uygun bant se\u00e7ilmeden yap\u0131lan envelope analizi, ar\u0131za frekans\u0131n\u0131 maskeleyebilir veya sahte harmonikler \u00fcretebilir. \u00d6zellikle hidroelektrik santrallerde hidrolik kaynakl\u0131 geni\u015f bant titre\u015fimler, impuls bile\u015fenlerin yanl\u0131\u015f yorumlanmas\u0131na neden olabilir [3][4].<\/p>\n<p>Yanl\u0131\u015f bant se\u00e7imi \u015fu sonu\u00e7lara yol a\u00e7abilir:<\/p>\n<ul style=\"margin-top: 10px;padding-left: 20px\">\n<li>Erken ar\u0131zan\u0131n g\u00f6zden ka\u00e7\u0131r\u0131lmas\u0131<\/li>\n<li>Gereksiz bak\u0131m planlamas\u0131<\/li>\n<li>Yanl\u0131\u015f alarm nedeniyle operasyonel kesinti<\/li>\n<\/ul>\n<p>Bu nedenle spectral kurtosis veya benzeri bant se\u00e7imi y\u00f6ntemlerinin kullan\u0131lmas\u0131, g\u00fcvenilir te\u015fhis i\u00e7in kritik \u00f6neme sahiptir [3].<\/p>\n<\/div>\n<ul>\n<li><strong>Karar Katman\u0131<\/strong><\/li>\n<\/ul>\n<p>Son a\u015famada elde edilen feature\u2019lar bak\u0131m karar\u0131na d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr:<\/p>\n<ul>\n<li>\u0130zleme (monitor)<\/li>\n<li>Planl\u0131 m\u00fcdahale<\/li>\n<li>Acil duru\u015f<\/li>\n<\/ul>\n<p>Bu karar yaln\u0131zca titre\u015fim seviyesine de\u011fil; ekipman kritikli\u011fine, y\u00fck durumuna ve \u00fcretim plan\u0131na ba\u011fl\u0131d\u0131r. Hidroelektrik santrallerde \u00fcretim kayb\u0131 maliyeti y\u00fcksek oldu\u011fundan, erken ve do\u011fru te\u015fhis operasyonel s\u00fcreklilik a\u00e7\u0131s\u0131ndan kritiktir [4].<\/p>\n<ol start=\"3\">\n<li><strong>HES Ekipmanlar\u0131nda Yayg\u0131n Titre\u015fim Sinyalleri ve Te\u015fhis Zorluklar\u0131<\/strong>\n<ul>\n<li><strong>D\u00fc\u015f\u00fck Devirli T\u00fcrbin Rulmanlar\u0131<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>Hidroelektrik santrallerde t\u00fcrbin rulmanlar\u0131 genellikle d\u00fc\u015f\u00fck devirde (low RPM) \u00e7al\u0131\u015f\u0131r. D\u00fc\u015f\u00fck h\u0131z, karakteristik ar\u0131za frekanslar\u0131n\u0131n da d\u00fc\u015f\u00fck olmas\u0131na neden olur. Bu durum iki \u00f6nemli zorluk yarat\u0131r:<\/p>\n<ol>\n<li>Ar\u0131za frekanslar\u0131n\u0131n spektrumda d\u00fc\u015f\u00fck enerjiyle g\u00f6r\u00fcnmesi<\/li>\n<li>Hidrolik ak\u0131\u015f kaynakl\u0131 geni\u015f bant titre\u015fimlerin maskelenme etkisi<\/li>\n<\/ol>\n<p>Literat\u00fcrde hidro g\u00fc\u00e7 istasyonlar\u0131nda titre\u015fim kaynaklar\u0131n\u0131n yaln\u0131zca mekanik de\u011fil, hidrolik ve elektromanyetik etkilerden de beslendi\u011fi belirtilmi\u015ftir [4]. Bu nedenle d\u00fc\u015f\u00fck frekansl\u0131 rulman ar\u0131zalar\u0131, hidrolik harmoniklerle kar\u0131\u015fabilir.<\/p>\n<p>Bu ortamda yaln\u0131zca genel RMS seviyesine bakmak, erken ar\u0131zay\u0131 tespit etmek i\u00e7in yeterli de\u011fildir.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Jenerat\u00f6r Rulmanlar\u0131 ve Elektromekanik Etkile\u015fim<\/strong><\/li>\n<\/ul>\n<p>Jenerat\u00f6r taraf\u0131ndaki rulmanlar, t\u00fcrbin taraf\u0131na g\u00f6re farkl\u0131 dinamik \u00f6zellikler g\u00f6sterir. Manyetik alan etkisi ve rotor eksen ka\u00e7\u0131kl\u0131klar\u0131, titre\u015fim spektrumuna ek bile\u015fenler ekleyebilir.<\/p>\n<p>Bu durum, deterministik sinyaller (\u00f6rne\u011fin rotor frekans\u0131 harmonikleri) ile impulsif ar\u0131za bile\u015fenlerinin ayr\u0131\u015ft\u0131r\u0131lmas\u0131n\u0131 zorla\u015ft\u0131r\u0131r. Randall ve Antoni, rulman ar\u0131za sinyallerinin deterministik di\u015fli sinyallerinden ayr\u0131\u015ft\u0131r\u0131lmas\u0131n\u0131n sinyal i\u015fleme teknikleri ile m\u00fcmk\u00fcn oldu\u011funu g\u00f6stermi\u015ftir [1].<\/p>\n<p>Bu nedenle envelope analizi ve uygun bant se\u00e7imi, jenerat\u00f6r rulmanlar\u0131nda daha da kritik h\u00e2le gelir.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Hidrolik Kaynakl\u0131 Maskelenme<\/strong><\/li>\n<\/ul>\n<p>Hidro t\u00fcrbinlerinde ak\u0131\u015f d\u00fczensizlikleri, kavite olu\u015fumu ve y\u00fck de\u011fi\u015fimleri geni\u015f bant titre\u015fim \u00fcretir. Bu titre\u015fimler, lokal rulman ar\u0131zas\u0131ndan kaynaklanan impulslar\u0131 bast\u0131rabilir.<\/p>\n<p>Spectral kurtosis, bu maskelenme alt\u0131nda impulsif bile\u015fenlerin bulundu\u011fu frekans bantlar\u0131n\u0131 belirlemede etkili bir y\u00f6ntemdir [3]. \u00d6zellikle d\u00fc\u015f\u00fck sinyal-g\u00fcr\u00fclt\u00fc oran\u0131 ko\u015fullar\u0131nda kurtogram yakla\u015f\u0131m\u0131 erken te\u015fhis i\u00e7in avantaj sa\u011flar.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Yayg\u0131n G\u00f6zlenen Rulman Ar\u0131zalar\u0131<\/strong><\/li>\n<\/ul>\n<p>HES ekipmanlar\u0131nda s\u0131k kar\u015f\u0131la\u015f\u0131lan rulman ar\u0131za tipleri:<\/p>\n<ul>\n<li>\u0130\u00e7 bilezik \u00e7atla\u011f\u0131 (BPFI bask\u0131n)<\/li>\n<li>D\u0131\u015f bilezik hasar\u0131 (BPFO bask\u0131n)<\/li>\n<li>Yuvarlanma eleman\u0131 y\u00fczey bozulmas\u0131 (BSF bile\u015feni)<\/li>\n<li>Ya\u011flama yetersizli\u011fi kaynakl\u0131 y\u00fczey a\u015f\u0131nmas\u0131<\/li>\n<\/ul>\n<p>McFadden ve Smith\u2019in geli\u015ftirdi\u011fi model, tek nokta lokal hasarda darbe \u00fcretiminin tekrarl\u0131 ve \u00f6l\u00e7\u00fclebilir oldu\u011funu ortaya koymu\u015ftur [2]. Bu nedenle spektrum analizi, hasar\u0131n konumunu belirlemede g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r.<\/p>\n<ol start=\"4\">\n<li><strong>\u00d6rnek Vaka: T\u00fcrbin Rulman\u0131nda \u0130\u00e7 Bilezik Hasar\u0131n\u0131n Erken Tespiti<\/strong><\/li>\n<\/ol>\n<p>Bir hidroelektrik santralde 18 MW kapasiteli bir Francis t\u00fcrbininde, t\u00fcrbin alt rulman\u0131nda titre\u015fim trendinde hafif art\u0131\u015f g\u00f6zlemlenmi\u015ftir. Genel RMS de\u011feri ISO 20816 s\u0131n\u0131rlar\u0131n\u0131n alt\u0131nda kalmas\u0131na ra\u011fmen, son \u00fc\u00e7 ayl\u0131k trendde istikrarl\u0131 bir y\u00fckseli\u015f g\u00f6r\u00fclm\u00fc\u015ft\u00fcr.<\/p>\n<ul>\n<li><strong>Zaman Domeni Analizi<\/strong><\/li>\n<\/ul>\n<p>Ham ivme sinyalinde belirgin bir periyodik yap\u0131 g\u00f6zlenmemi\u015ftir. Ancak y\u00fcksek frekans band\u0131nda k\u0131sa s\u00fcreli impulslar dikkat \u00e7ekmi\u015ftir. Bu impulslar d\u00fczensiz g\u00f6r\u00fcnse de, order tracking sonras\u0131 devirle senkronize tekrar etti\u011fi belirlenmi\u015ftir.<\/p>\n<p>Bu t\u00fcr impulsif yap\u0131lar\u0131n lokal rulman ar\u0131zalar\u0131na i\u015faret edebilece\u011fi literat\u00fcrde belirtilmi\u015ftir [1][2].<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Spectral Kurtosis ve Bant Se\u00e7imi<\/strong><\/li>\n<\/ul>\n<p>Spectral kurtosis analizi uyguland\u0131\u011f\u0131nda, 4\u20136 kHz aral\u0131\u011f\u0131nda belirgin impuls yo\u011funlu\u011fu tespit edilmi\u015ftir. Kurtogram \u00e7\u0131kt\u0131s\u0131na g\u00f6re bu bantta envelope analizi yap\u0131lm\u0131\u015ft\u0131r [3].<\/p>\n<p>Bu a\u015fama kritik \u00f6neme sahiptir; \u00e7\u00fcnk\u00fc yanl\u0131\u015f bant se\u00e7imi ar\u0131za bile\u015fenini maskeyebilir.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Envelope Spektrum Sonucu<\/strong><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3116\" src=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1-300x200.png\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1-300x200.png 300w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1-1024x683.png 1024w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1-768x512.png 768w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1-350x233.png 350w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1-540x360.png 540w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1-750x500.png 750w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1-600x400.png 600w, https:\/\/renewasoft.com.tr\/wp-content\/uploads\/2026\/02\/fa945a88-a83a-434e-94e6-a70e5bbaa4f1.png 1536w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>(\u015eekil 2. Envelope spektrumunda karakteristik rulman ar\u0131za frekanslar\u0131n\u0131n (BPFO ve BPFI) belirginle\u015fmesi lokal hasar g\u00f6stergesidir.)<\/p>\n<p>Envelope spektrumunda mil h\u0131z\u0131na ba\u011fl\u0131 olarak hesaplanan BPFI frekans\u0131n\u0131n harmonikleri belirgin \u015fekilde ortaya \u00e7\u0131km\u0131\u015ft\u0131r. Bu durum i\u00e7 bilezik hasar\u0131 ihtimalini g\u00fc\u00e7lendirmi\u015ftir [2].<\/p>\n<p>Genel RMS de\u011feri hen\u00fcz alarm seviyesinde olmasa da:<\/p>\n<ul>\n<li>Kurtosis de\u011feri artm\u0131\u015ft\u0131r<\/li>\n<li>Envelope spektrumunda karakteristik frekans belirginle\u015fmi\u015ftir<\/li>\n<li>Trend analizi yukar\u0131 y\u00f6nl\u00fcd\u00fcr<\/li>\n<\/ul>\n<p>Bu \u00fc\u00e7 g\u00f6sterge birlikte de\u011ferlendirildi\u011finde, erken a\u015fama i\u00e7 bilezik hasar\u0131 te\u015fhisi konulmu\u015ftur.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>M\u00fcdahale ve Sonu\u00e7<\/strong><\/li>\n<\/ul>\n<p>Planl\u0131 bak\u0131m periyodunda rulman s\u00f6k\u00fclm\u00fc\u015f ve i\u00e7 bilezik \u00fczerinde ba\u015flang\u0131\u00e7 \u00e7atla\u011f\u0131 do\u011frulanm\u0131\u015ft\u0131r. Erken te\u015fhis sayesinde:<\/p>\n<ul>\n<li>Plans\u0131z duru\u015f engellenmi\u015f<\/li>\n<li>T\u00fcrbin hasar\u0131 b\u00fcy\u00fcmeden \u00f6nlenmi\u015f<\/li>\n<li>\u00dcretim kayb\u0131 olu\u015fmam\u0131\u015ft\u0131r<\/li>\n<\/ul>\n<p>Bu vaka, impulsif sinyal analizi ve envelope yakla\u015f\u0131m\u0131n\u0131n d\u00fc\u015f\u00fck devirli hidro t\u00fcrbinlerinde dahi etkili oldu\u011funu g\u00f6stermektedir [1][4].<\/p>\n<ol start=\"5\">\n<li><strong>Dijital Analitik Katman\u0131: Hydrowise ile Titre\u015fim Verisinin Operasyonel Karara D\u00f6n\u00fc\u015fmesi<\/strong><\/li>\n<\/ol>\n<p>Titre\u015fim analizi yaln\u0131zca sinyal i\u015fleme s\u00fcreci de\u011fildir; do\u011fru altyap\u0131 olmadan operasyonel karar mekanizmas\u0131na entegre edilemez. Hidroelektrik santrallerde titre\u015fim sens\u00f6rlerinden gelen y\u00fcksek frekansl\u0131 verinin SCADA sistemleriyle birlikte de\u011ferlendirilmesi gerekir.<\/p>\n<p>Hydrowise platformu bu noktada \u00fc\u00e7 katmanl\u0131 bir yakla\u015f\u0131m sunar:<\/p>\n<ul>\n<li><strong>Veri Toplama ve Senkronizasyon<\/strong><\/li>\n<\/ul>\n<ul>\n<li>SCADA proses verisi (y\u00fck, devir, s\u0131cakl\u0131k)<\/li>\n<li>Titre\u015fim sens\u00f6r verisi (ivme, h\u0131z)<\/li>\n<li>Alarm ge\u00e7mi\u015fi ve bak\u0131m kay\u0131tlar\u0131<\/li>\n<\/ul>\n<p>Bu veriler senkronize edilerek analiz katman\u0131na aktar\u0131l\u0131r. Order tracking ve devir senkronizasyonu, \u00f6zellikle d\u00fc\u015f\u00fck h\u0131z dalgalanmalar\u0131n\u0131n oldu\u011fu hidro t\u00fcrbinlerinde \u00f6nemlidir [1].<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Feature ve Trend Analiti\u011fi<\/strong><\/li>\n<\/ul>\n<p>Hydrowise analitik mod\u00fcl\u00fc:<\/p>\n<ul>\n<li>RMS<\/li>\n<li>Peak<\/li>\n<li>Kurtosis<\/li>\n<li>Envelope spektrum tepe frekanslar\u0131<\/li>\n<\/ul>\n<p>gibi feature\u2019lar\u0131 otomatik \u00fcretir.<\/p>\n<p>Spectral kurtosis temelli bant se\u00e7imi ve envelope analizi algoritmalar\u0131 ile impulsif ar\u0131za bile\u015fenleri ayr\u0131\u015ft\u0131r\u0131l\u0131r [3].<\/p>\n<p>Trend analizi sayesinde yaln\u0131zca e\u015fik a\u015f\u0131m\u0131 de\u011fil, art\u0131\u015f e\u011filimi de de\u011ferlendirilir. Bu yakla\u015f\u0131m, erken a\u015fama lokal hasarlarda kritik avantaj sa\u011flar.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Alarm ve Karar Katman\u0131<\/strong><\/li>\n<\/ul>\n<p>Sistem alarm \u00fcretirken yaln\u0131zca titre\u015fim seviyesine bakmaz; a\u015fa\u011f\u0131daki parametreleri birlikte de\u011ferlendirir:<\/p>\n<ul>\n<li>Ekipman kritiklik skoru<\/li>\n<li>Y\u00fck seviyesi<\/li>\n<li>\u00dcretim plan\u0131<\/li>\n<li>\u00d6nceki ar\u0131za ge\u00e7mi\u015fi<\/li>\n<\/ul>\n<p>Bu b\u00fct\u00fcnle\u015fik de\u011ferlendirme, gereksiz duru\u015flar\u0131 azalt\u0131rken ger\u00e7ek riskleri erken a\u015famada g\u00f6r\u00fcn\u00fcr k\u0131lar.<\/p>\n<p>Hidroelektrik santrallerde \u00fcretim kayb\u0131 maliyeti y\u00fcksek oldu\u011fundan, do\u011fru alarm stratejisi operasyonel s\u00fcreklilik a\u00e7\u0131s\u0131ndan kritik \u00f6neme sahiptir [4].<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Predictive Maintenance Entegrasyonu<\/strong><\/li>\n<\/ul>\n<p>Titre\u015fim feature\u2019lar\u0131 zaman i\u00e7inde istatistiksel modele beslenerek kalan faydal\u0131 \u00f6m\u00fcr (RUL) tahmini yap\u0131labilir. Literat\u00fcrde condition monitoring verisinin prognostik modellerle birle\u015ftirilmesinin bak\u0131m planlamas\u0131n\u0131 iyile\u015ftirdi\u011fi g\u00f6sterilmi\u015ftir [1].<\/p>\n<p>Bu yakla\u015f\u0131m sayesinde:<\/p>\n<ul>\n<li>M\u00fcdahale zaman\u0131 optimize edilir<\/li>\n<li>Plans\u0131z duru\u015f riski azal\u0131r<\/li>\n<li>Bak\u0131m maliyetleri dengelenir<\/li>\n<\/ul>\n<p>Titre\u015fim analiti\u011fi bu yap\u0131n\u0131n temel veri kayna\u011f\u0131d\u0131r.<\/p>\n<p>&nbsp;<\/p>\n<ol start=\"6\">\n<li><strong>Sonu\u00e7 ve De\u011ferlendirme<\/strong><\/li>\n<\/ol>\n<p>Rulman ar\u0131zalar\u0131n\u0131n erken te\u015fhisi, \u00f6zellikle hidroelektrik santraller gibi varl\u0131k yo\u011fun tesislerde operasyonel s\u00fcreklilik a\u00e7\u0131s\u0131ndan kritik \u00f6neme sahiptir. Lokal hasarlar impulsif titre\u015fim \u00fcretir ve bu sinyaller \u00e7o\u011fu zaman genel titre\u015fim seviyesinin alt\u0131nda maskelenmi\u015f \u015fekilde bulunur [1][2].<\/p>\n<p>Envelope analizi, spectral kurtosis ve karakteristik ar\u0131za frekanslar\u0131n\u0131n de\u011ferlendirilmesi, d\u00fc\u015f\u00fck devirli t\u00fcrbin ve jenerat\u00f6r rulmanlar\u0131nda dahi erken te\u015fhis imk\u00e2n\u0131 sunar [1][3]. HES ortam\u0131nda hidrolik ve elektromekanik etkiler sinyal yorumunu zorla\u015ft\u0131rsa da do\u011fru bant se\u00e7imi ve trend analizi bu zorluklar\u0131 a\u015fmada etkilidir [4].<\/p>\n<p>Titre\u015fim verisinin operasyonel karara d\u00f6n\u00fc\u015ft\u00fcr\u00fclmesi ise yaln\u0131zca sinyal i\u015fleme meselesi de\u011fil; veri entegrasyonu, trend takibi ve ekipman kritiklik de\u011ferlendirmesi ile birlikte ele al\u0131nmal\u0131d\u0131r.<\/p>\n<p><strong>Bir sonraki ad\u0131m olarak<\/strong>, mevcut titre\u015fim izleme altyap\u0131s\u0131n\u0131n feature \u00fcretim kapasitesi ve bant se\u00e7imi y\u00f6ntemleri g\u00f6zden ge\u00e7irilmeli; alarm mant\u0131\u011f\u0131 yaln\u0131zca e\u015fik a\u015f\u0131m\u0131na de\u011fil, trend ve karakteristik frekans analizine dayand\u0131r\u0131lmal\u0131d\u0131r. Bu yakla\u015f\u0131m, plans\u0131z duru\u015f riskini azalt\u0131rken bak\u0131m planlamas\u0131n\u0131n \u00f6ng\u00f6r\u00fclebilirli\u011fini art\u0131r\u0131r.<\/p>\n<ol start=\"7\">\n<li><strong>S\u0131k Sorulan Sorular<\/strong><\/li>\n<\/ol>\n<p><strong>1- Genel RMS seviyesi d\u00fc\u015f\u00fckken rulman ar\u0131zas\u0131 nas\u0131l tespit edilir?<\/strong><br \/>\nLokal rulman hasarlar\u0131 genellikle impulsif karakter ta\u015f\u0131r ve genel enerji seviyesine (RMS) s\u0131n\u0131rl\u0131 katk\u0131 yapabilir. Bu nedenle envelope analizi, kurtosis ve karakteristik frekans takibi gibi y\u00f6ntemler kullan\u0131lmal\u0131d\u0131r [1][3].<\/p>\n<p><strong>2- BPFO ve BPFI frekanslar\u0131 neden \u00f6nemlidir?<\/strong><br \/>\nBu frekanslar rulman geometrisine ba\u011fl\u0131d\u0131r ve lokal hasar\u0131n hangi bile\u015fende olu\u015ftu\u011funu g\u00f6sterir. Envelope spektrumunda bu frekanslar\u0131n harmoniklerinin ortaya \u00e7\u0131kmas\u0131 ar\u0131za konumunu i\u015faret eder [2].<\/p>\n<p><strong>3- D\u00fc\u015f\u00fck devirli hidro t\u00fcrbinlerinde titre\u015fim analizi neden daha zordur?<\/strong><br \/>\nD\u00fc\u015f\u00fck h\u0131z, ar\u0131za frekanslar\u0131n\u0131n d\u00fc\u015f\u00fck enerji seviyesinde kalmas\u0131na neden olur. Ayr\u0131ca hidrolik kaynakl\u0131 geni\u015f bant titre\u015fimler impulsif bile\u015fenleri maskeyebilir [4].<\/p>\n<p><strong>4- Spectral kurtosis her durumda gerekli midir?<\/strong><br \/>\nG\u00fcr\u00fclt\u00fc ve maskelenme etkisinin y\u00fcksek oldu\u011fu ortamlarda spectral kurtosis bant se\u00e7imini optimize ederek erken te\u015fhise katk\u0131 sa\u011flar [3]. Ancak y\u00fcksek sinyal-g\u00fcr\u00fclt\u00fc oran\u0131nda klasik envelope analizi yeterli olabilir.<\/p>\n<p><strong>5- ISO 20816 erken rulman ar\u0131zas\u0131n\u0131 tespit etmek i\u00e7in yeterli midir?<\/strong><br \/>\nISO 20816 genel titre\u015fim seviyelerine dayal\u0131 durum de\u011ferlendirmesi sa\u011flar. Ancak lokal rulman ar\u0131zalar\u0131n\u0131n erken tespiti i\u00e7in envelope ve frekans analizi gereklidir [1].[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text css=&#8221;&#8221;] Titre\u015fim Analizi ile Rulman Ar\u0131zas\u0131: HES Ekipmanlar\u0131nda En Yayg\u0131n Sinyaller ve Erken Te\u015fhis Yakla\u015f\u0131mlar\u0131 Giri\u015f Hidroelektrik santrallerde t\u00fcrbin ve jenerat\u00f6r rulmanlar\u0131, y\u00fcksek y\u00fck alt\u0131nda ve uzun s\u00fcreli \u00e7al\u0131\u015fmaya maruz kalan kritik bile\u015fenlerdir. Bu rulmanlarda olu\u015fan lokal hasarlar, temas an\u0131nda impulsif titre\u015fimler \u00fcretir ve bu titre\u015fimler sistemin dinamik transfer fonksiyonundan ge\u00e7erek \u00f6l\u00e7\u00fclebilir sinyallere d\u00f6n\u00fc\u015f\u00fcr [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":3285,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1875],"tags":[1091,1090,1088,787,1122,1100,1082,1116,1108,1110,1096,1074,1120,1078,1117,1098,1106,1080,1094,73,1086,1112,1113,1102,791,1084,793,1104,1076],"class_list":["post-3114","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kestirimci-bakim-ariza-yonetimi-is-degeri","tag-bpfi","tag-bpfo","tag-bsf","tag-condition-monitoring","tag-dijital-bakim-analitigi","tag-dusuk-devirli-turbin-analizi","tag-envelope-analizi","tag-erken-ariza-teshisi","tag-feature-cikarimi","tag-frekans-domeni-analizi","tag-ftf","tag-hes-titresim-izleme","tag-hidro-turbin-vibration-diagnostics","tag-hidroelektrik-santral-ekipmanlari","tag-hidrolik-maskelenme-etkisi","tag-impulsif-titresim","tag-iso-20816","tag-jenerator-rulman-titresimi","tag-karakteristik-rulman-ariza-frekanslari","tag-kestirimci-bakim","tag-kurtogram-yontemi","tag-mttr-azaltma","tag-plansiz-durus-onleme","tag-rul-tahmini","tag-rulman-arizasi","tag-spectral-kurtosis","tag-titresim-analizi","tag-titresim-spektrum-analizi","tag-turbin-rulman-arizasi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Titre\u015fim Analizi ile Rulman Ar\u0131zas\u0131: HES Ekipmanlar\u0131nda En Yayg\u0131n Sinyaller ve Erken Te\u015fhis Yakla\u015f\u0131mlar\u0131 - Renewasoft Enerji ve Yaz\u0131l\u0131m A.\u015e<\/title>\n<meta name=\"description\" content=\"HES ekipmanlar\u0131nda rulman ar\u0131zalar\u0131 titre\u015fim analizi ile nas\u0131l erken tespit edilir? 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