Dergiler / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi / 2025 / Cilt: 40 Sayı: 4
İğne masuralı rulmanlarda masura profilinin rulman Hertzian temas basıncına etkisi
- Sayfa
- 2129–2142
- Yayın Tarihi
- 2025-12-31
Özet
Endüstride güç aktarımı için kritik öneme sahip rulmanların ömrünü tahmin etmek amacıyla ampirik yaklaşımlar kullanılsa da temas basıncı, gerilme ve gerinim dağılımı gibi ayrıntılı analizler için sonlu eleman analizine (SEA) ihtiyaç duyulmaktadır. Bu çalışmada, iğne masuralı rulmanlarda masura profilinin Hertzian temas basıncı dağılımına etkisi incelenmiştir. İlk aşamada profil içermeyen masura için analitik yöntemlerle temas basıncı hesaplanmış ve ardından ANSYS LS-Dyna ile bağımsızlık analizleri yapılarak optimum ağ boyutu belirlenmiştir. Ceza ölçeği faktörü (PSF) ve viskoz sönüm faktörü (VDC) gibi parametreler iteratif analizlerle doğrulanarak belirlenmiştir. İki farklı rulman modeline uygulanan analizler sonucunda, maksimum temas basınçları, gerinim değerleri ve bu değerlerin dağılım grafikleri elde edilmiştir. Sonuçlar, masura profilinin temas basıncı dağılımını homojenleştirerek kenarlarda yüksek basıncı azalttığını göstermekte; profil geometrisi ve masura çapının rulman ömrüne olan kritik katkısını vurgulamaktadır.
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Kaynakça (28)
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