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Multi-body-Simulation of a Self Adaptive Torsional Vibration Absorber

机译：自适应扭转振动吸收器的多体仿真

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Automotive manufacturers try to decrease emissions and fuel consumption by downsizing the engine. This means the number of pistons and the swept volume are reduced. Unfortunately, this increases the vibrations which are caused by the oscillating movement of the pistons. The vibrations are transferred through the power train and the car body to the passenger seats. To reduce these vibrations absorbers are installed into the power train. In this paper a vibration absorber is simulated by general purpose multi-body simulation software. Swing arms which are clamped to a disc in radial direction are modelled as flexible bodies. Each swing arm has got a mass at its end which is in form of a rigid body. Because of the centrifugal force which increases the geometric stiffness of the swing arms, the vibration absorber's eigenfrequency continuously adapts to the current engine rotational speed. Thus the adaptive vibration absorber is able to reduce vibrations from idle up to maximum speed. The paper describes the multi-body system with flexible bodies, the linearization of the nonlinear equations of motion and the results of a parameter study.
机译：汽车制造商试图减少发动机缩小发动机的排放和油耗。这意味着活塞的数量和扫掠的量减少。遗憾的是，这增加了由活塞的振动运动引起的振动。振动通过动力传动系和车身转移到乘客座椅上。为了减少这些振动吸收器安装到动力传动系统中。本文通过通用多体仿真软件模拟了振动吸收器。沿径向夹持到盘的摆臂被建模为柔性体。每个摆臂在其末端的质量处于刚体的形式。由于增加了摆臂的几何刚度的离心力，减振器的特征频率连续地适应电流发动机转速。因此，自适应振动吸收器能够从空闲到最大速度的空闲振动。本文描述了具有柔性体的多体系，运动的线性化和运动研究的结果。

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