典型工况大客车高速操纵稳定性研究

【作者】 刘喜东；

【导师】 马建；

【作者基本信息】 长安大学 ， 车辆工程， 2003， 硕士

【摘要】 本论文通过建模、验证和仿真，主要对大客车的操纵稳定性进行研究。 以国产大客车为基础，综合多种工况建立多自由度动力学模型，并在MATLAB／Simulink环境下进行多种工况的仿真。以试验结果为依据，对仿真结果进行分析和验证。在模型中，改变与重心位置、总布置参数、横向稳定杆和侧向风相关的参数，得出相应的仿真结果，根据这些仿真结果，对大客车的操纵稳定性进行分析和研究。 论文还对汽车的操纵稳定性的评价指标进行了研究，对仿真结果使用一种新的评价指标进行评价。更多还原

【Abstract】 This paper presents a theoretical study of maneuverability and stability of coach-bus via modeling, verification and simulation.For this end, a dynamic model with many degrees of freedom is built on the basis of coach-bus made in China and a synthesis of various gaits. This model, capable of simulating extreme driving maneuvers with MATLAB/Simulink, brings out precise results that match the experiment results perfectly. Corresponding simulation results are achieved too by feeding the model correlative parameters altered as per the research requirements, such as the position of gravity, configuration, lateral stable pole, side wind, etc. An analysis and study is thereby made on the maneuverability and stability of the coach-bus.In this paper, the dynamics model has some characters of nonlinearity and a new evaluation index ,by which simulation consequencose can be evaluated, be researched and be put forward.更多还原