LIGHT-DUTY VEHICLE CHASSIS ANAYLSIS AND OPTIMIZATION

Öz

The amount and variety of vehicles which serve different purposes increases with the development of automotive technology. Especially local municipalities decrease their operating costs by saving human power and they also increase the service speed with the usage of light-weight vehicles. These vehicles mainly serve as garbage trucks, street washer trucks, street sweeping trucks and canal jetting vehicles. In this study, the chassis of a street washer truck with hydrostatic drive system is analyzed and optimized based on forces acting upon the chassis. These kind of service vehicles which are generally used in urban applications with low speed range, have different types of forces on their chassis compared to similar conventional vehicles due to their equipments and operating conditions. Therefore, sizing and topology optimizations are performed based on the strength of the chassis profile connection location. The main purpose of the optimization is, determining the thickness of the profiles and reducing the mass of the chassis where the stresses are lower

Anahtar Kelimeler

• Light-duty vehicle, chassis analysis, optimizasyon

HAFİF HİZMET ARACI ŞASİ ANALİZİ VE OPTİMİZASYONU

Öz

Otomotiv teknolojisinin gelişmesiyle birlikte karayollarında, farklı amaca hizmet eden araçların sayısı ve çeşitliliği gittikçe artmıştır. Özellikle yerel yönetimler, kullandıkları hafif hizmet araçları ile hem insan gücünden tasarruf ederek işletme maliyetini azaltmış, hem de hizmet hızını arttırmışlardır. Bu araçlar başlıca; çöp toplama aracı, yol yıkama aracı, yol süpürme aracı ve kanal temizleme aracı olarak hizmet vermektedir. Bu çalışmada hidrostatik tahrikli bir yol yıkama aracının şasi analizi ve optimizasyonu, şasi üzerine gelen yükler baz alınarak yapılmıştır. Genellikle şehir içi uygulamalarda ve düşük hızlarda kullanılan bu tip hizmet araçları, üzerindeki ekipmanlar ve çalışma koşulları nedeniyle benzer boyutlu konvansiyonel taşıtlara göre şasi üzerinde farklı zorlanmalara sahiptirler. Bu nedenle şasi profillerinin bağlantı noktaların dayanımı esas alınarak boyut ve topoloji optimizasyonu yapılmıştır. Optimizasyonun temel amacı uygun profil et kalınlığınun belirlenmesi ve şasi üzerinde gerilmenin az olduğu yerlerden kütle azaltılmasıdır

Anahtar Kelimeler

• Hafif hizmet aracı, şasi analizi, optimizasyon

Kaynakça

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