【作者】 张庙康； 翁建生； 陆惟一； 朱卫平；

【Author】 Zhang Miaokang Weng Jiansheng(Dept.of Mechanical and Electrical Engineering Nanjing Architectural and Civil Engineering Institute Nanjing,210009)Loh Weiyi Zhu Weiping (Ford Motor Co. Dearborn MI 48121)

【机构】 南京建工学院机电系； 美国福特汽车公司；

【摘要】 现代汽车广泛使用的盘式制动器,由于磨损不均匀和热应力等因素造成制动盘不平整,在制动时将引起驾驶盘、制动踏板和司机座椅等部位发生不能接受的振动,基于制动盘不平造成盘式液压制动系统振动的机理,提出了在液压制动系统中接入减振器的方法来压抑流体压力脉动。通过模拟盘式制动减振实验装置的试验研究,证实采用这种减振装置可在很宽的频带范围内有效地减少流体的压力变化,从而降低由于制动不顺所造成的车辆振动。从理论上分析了制动盘不平时,接入和不接入减振器的两种动力学模型,并显示减振器的刚度特性对减振的效果有较大的影响。实施了在盘式制动系统中接入该类减振器的真车行车制动试验,取得了预期的满意结果。更多还原

【Abstract】 Brake roughness mainly caused by uneven rotor wear which is generated by disk corrosion and lining material transfer distortion due to severe thermal loading, and will induce unacceptable vibration that driver feels through steering wheel, brake pedal and seat track. Based on the mechanism analysis of the vibration in disk hydraulic brake system induced by brake roughness, the laboratory experimental setup simulating the vibration reducion to disk hydraulic brake system was designed. The theoretical analysis and test measurement using this experimental setup show that the fluid pressur fluctuation can be effectively reducd in the wide frequency range when a absorber we present is connected to the simulated hydraulic brake system, therefore the unacceptable vibration will be suppressed. It is very important for the vibratoin effective reduction to optimize the stiffness characteristics of absorber. Fild tests of vehicles with this kind of absorber were executed, the test results are rather satisfied.更多还原