Lastik çeki performansı araştırmalarında kullanılabilecek tek tekerlek test düzeneğinin geliştirilmesi
Küçük Resim Yok
Tarih
2012
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Tarım traktörlerinde kullanılan lastiklerin çeki mekaniği üzerindeki araştırmalarına öncülük yapabilmesi için ülkemizde ilk kez kendi yürür bir çeki test düzeneği dizayn edilmiş ve geliştirilmiştir. Tek tekerlek test düzeneği, çevresel lastik hızı, tekerlek patinajı ve dinamik tekerlek yükünü kontrol edebilmektedir. Farklı zeminlerde denemeler yapma yeteneğinin yansıra, gelişmiş ölçüm sistemleri kullanılarak daha hassas ve doğru veriler alma imkânı sağlamıştır. Test düzeneği 3 ana kısımdan oluşmaktadır. Birinci kısım test düzeneğinin hareket yeteneğini sağlayan traktörün üç nokta askı sistemine bağlanan çeki kısmıdır. İkinci kısım traktörün kuyruk mili çıkışına bağlı olarak çalışan hidrolik pompadan hareket alan bir hidrolik motor tarafından test tekerleğine hareket ileten yürütme sistemidir. Üçüncü kısım ise deneyler sırasında dinamik yükün test tekerleğine uygulanmasını sağlayan ve bir hidrolik silindirden oluşan yükleme sistemidir. Gerçek zamanlı olarak alınan sinyaller (5 adet kuvvet, tork, devir) monitörden görülebildiği gibi bilgisayara da kayıt edilebilmektedir. Statik kalibrasyon deneylerinde transducerler doğrusal ilişkiler göstermiş olup, korelasyon katsayıları (R) 1’e yakın bulunmuştur.
A traction test setup was designed and developed for leading to researches on traction mechanic of tires used in agricultural tractors. Single wheel test setup can control peripheral tire speed, wheel slip and dynamic wheel load. It provided more sensitive and accurate data acquisition by using advance measurement systems beside its ability to perform experiments on different grounds. Experimental setup was consists of three main parts. First part was tractor draw bar which was connected to three point linkage providing motion ability of test setup. Second part was driving system which was driven with a hydraulic motor connected to tail axle and transferring motion to test wheel. Third part was the loading (charging) system which was consists of a hydraulic cylinder applying dynamic load on test wheel during experiments. Signals (5 force, torque and rotation) acquired in real time can be seen in monitor while it can also be recorded to computer. Transducers in static calibration experiments exhibited linear relations while their correlation coefficients (R) were found near 1.
A traction test setup was designed and developed for leading to researches on traction mechanic of tires used in agricultural tractors. Single wheel test setup can control peripheral tire speed, wheel slip and dynamic wheel load. It provided more sensitive and accurate data acquisition by using advance measurement systems beside its ability to perform experiments on different grounds. Experimental setup was consists of three main parts. First part was tractor draw bar which was connected to three point linkage providing motion ability of test setup. Second part was driving system which was driven with a hydraulic motor connected to tail axle and transferring motion to test wheel. Third part was the loading (charging) system which was consists of a hydraulic cylinder applying dynamic load on test wheel during experiments. Signals (5 force, torque and rotation) acquired in real time can be seen in monitor while it can also be recorded to computer. Transducers in static calibration experiments exhibited linear relations while their correlation coefficients (R) were found near 1.
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