Faruk Emre AYSAL, Gökhan ÖTNÜ, Hüseyin BAYRAKÇEKEN

Şehir İçi Otobüslerde Doğalgaz Tanklarının Yerleşiminin Dönme Karakteristiğine Etkisi

Yapılan çalışmada, bağımsız süspansiyonlu otobüslerde, farklı yolcu konumları, yolcu adetleri ve otobüsün üzerine konulması planlanan ekipmanın yer tespiti için CAD modeli oluşturulmuştur. Msc.Adams/Car programı kullanılarak doğalgazlı (CNG) otobüsün 100 metre yarıçaplı virajdaki frenlemesi incelenmiş ve taşıtın ağırlık merkezinin konumuna göre frenleme anındaki davranışı belirlenmiştir. Ağırlık merkezinin optimum bölgede oluşması durumunda taşıtın tarafsız dönme karakteristiğinde stabil hale geldiği, ağırlık merkezinin taşıtın ön ve orta bölümde konumlanma durumunda ani frenleme ile yoldan çıktığı belirlenmiştir.

The Effect ofCNG Tank Placement to Steering Characteristic at City Buses

In this study,CAD model is developed for positions of different of passengers, number of passengers and the location of the planned inventory which will be placed on the bus. With using Msc.Adams/Car different passenger positioning, and after loading, breaking action in 100 meter radius bend is analyzed.As a result of occur the center of gravity in the right place; vehicle is identified as stable in neutral spinning characteristic. In the situation of locating gravity centers of forth of vehicle, by excessive breaking action, went off vehicles from road is observe.

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Chikhale, S. J.and Deshmukh, P. (2013). Comparative Analysis Of Vehicle Suspension System in Matlab‐SIMULINK and MSc‐ADAMS with the help of Quarter Car Model . International Journal of Innovative Research in Science, Engineering and Technology , 2(8), 4074‐4081.
Chou, C. McCoy, R. and Le, J. (2005). A literature review of rollover test methodologies. Int. J.Veh. Saf., 1((1‐3)), 200‐237.
Chou, T.and Chu, T.‐W. (2014). An improvement in rollover detection of articulated vehicles using the grey system theory. Vehicle System Dynamics, 52(5), 679‐703.
Demir, A.and Çavdar, A. (2005). Taşıt Kullanım karakteristikleri açısından az dönerlik (understeer) ve aşırı dönerlik (oversteer) incelenmesi. . MTET.
MacAdam, C. (1981). Application of an optimal preview control for simulation of closed‐ loop automobile driving. IEEE Trans. Syst. Man Cybern, 11(6), 393‐399.
McRuer, D.and D.H.Weir. (1969). Theory of manual vehicular control. Ergonomics, 12(4), 599‐ 633.
McRuer, D. Allen, R. Weir, D.and Klein, R. (1977). New results in driver steering control models. Hum. Factors, 19(4), 381‐397.
Ötnü, G. (2015). Bağımsız Süspansiyonlu Halk Otobüsünde Ağırlık Merkezi Değişiminin Dönme Karakteristiğine Etkisinin Analizi. Msc. Thesis, A.K.U. Institute of Natural and Applied Sciences.
Peng, Y., and XiaoboYang. (2012). Comparison of various double‐lane change manoeuvre specifications. Vehicle System Dynamics, 50(7), 1157‐1171.
Piyabongkarn, D. Lew, J. Rajamani, R. Grogg,J.andYuan, Q. (2007). On the use of torque‐biasing systems for electronic stability control: Limitations and possibilities. IEEE Trans. Control Syst. Technol., 15(3), 581‐589.
Tseng, H. Ashrafi, D. Madau, Brown, T.and Recker, D. (1999). The Development of Vehicle Stability Control at Ford. EEE/ASME Trans. Mechatronics, 4(3), 223‐234.
Winsum, W.Waard, D.and Brookhuis, K. (1999). Lane change manoeuvres and safety margins. Transp. Res. F: Traffic Psychol. Behav., 2(3), 139‐149.
Yang, X. (1999). A closed‐loop driver/vehicle directional dynamics predictor. Montreal, Canada: Ph.D. thesis, Concordia University. Zhao, Y. Zhang, G.and Guo, K. (2000). Handling safety simulation of driver‐vehicle closed‐ loop system with. Vehicle System Dynamics, 33(3), 169‐181.
Zhuang, D. Yu, F.and Lin, Y. (2008). Evaluation of a vehicle directional control with a fractional order PDμ controller. Int. J. Automot. Technol. , 9(6), 679‐685.