Hasarlı Helis Dişli Çarkın Nümerik Analizi

Günümüzde, kara, deniz ve hava araçlarındaki mekanik gücü iletmek için dişli çarklar kullanılmaktadır. Makinelerde kullanılan bu dişli çarklarda bazen hasar meydana gelebilmektedir. Bu hasarların önlenmesi amacıyla gelişen teknolojiyle birlikte nümerik programların kullanımı ve önemi de artmaktadır. Oluşabilecek hasarlar önceden bu programlar aracılığıyla belirlenebilmektedir. Böylece uygun maliyetli analizlerle malzeme seçimi yapılabilmektedir. Bu çalışmada, araba motorlarında sıklıkla kullanılan hasarlı bir helis dişli nümerik olarak analiz edilmiştir. Çalışmada, hasarlı helisel dişli önce Solidworks programı yardımıyla modellenmiş, ardından ANSYS Workbench Finite Elements Paketi programı ile statik gerilme analizi yapılmıştır. Analizde yapısal çelikten yapılmış helis dişlinin özellikleri kullanılmıştır. Çalışma sonucunda emniyet gerilme sınırının aşılması nedeniyle helis dişlinin kırıldığı tespit edilmiştir.

Anahtar Kelimeler:

Hasar, Helis Dişli, Sonlu Eleman Analizi, Ansys

Numerical Analysis of Damaged Helical Gear Wheel

In the present day, gear wheels are used to transmit mechanical power in land, sea and air vehicles. Damages can sometimes occur in these gear wheels used in machines. In order to prevent these damages, the use and importance of numerical programs increase with the developing technology. Damages that may occur can be determined in advance through these programs. Thus, material selection can be made with cost-effective analysis. In this study, a damaged helical gear, which is frequently used in car engines, was analyzed numerically. In the study, the damaged helical gear was first modeled with the help of Solidworks program and then static stress analysis was performed with the ANSYS Workbench Finite Elements Package program. In the analysis, the properties of the helical gear made of structural steel were used. As a result of the study, it was determined that the helical gear was broken due to exceeding the safety stress limit.

Keywords:

Damage, Helical Gear, Finite Element Analysis, Ansys,

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