轿车传动系中新型减振装置的研究(一)

摘要

ZF Sachs公司一直在探索新型的减振装置,它将在成本和功能上都优于现有的系统.已知的各种解决方法可系统地排列成一棵"方法树",因此所采用的新系统将从该树的间隙中寻找.例如,在各类减振装置中,扭转减振器与质量和刚度耦合.而一种新的解决方法是将减振器和速度的自由度耦合.应该对各种解决方法的潜力做出评价.根据Salomon原理对转速适应型减振器的发展进行评价则是一个例子.根据拉格朗奇方程建立的运动方程和简单而高效的仿真,就能获得系统的重要特性.对离合器中第三质量不同的连接方式作了系统分析.并对摩擦连接的附加质量和持续打滑离合器进行了计算和试验.采用高效的计算方法和系统分析程序发现和解决问题将显著降低开发成本.%ZF Sachs AG is looking for alternatives to existing vibration decoupling systems that offer cost or function benefits.The known solutions are arranged systematically in a solution tree,so that approaches to new systems can be found by identifying the gaps.For example,in the absorber category,rotational speed adaptive absorber,which are coupled via mass and stiffness,are known.Anew approach,however,would be an absorber coupled by the degrees of freedom of the speed. The solutions found are evaluated with regard to their potential.Results from the development of a rotational speed adaptive absorber according to the Salomon principle are presented as an example.By deriving the equations of motion with the Lagrange's equation method and the application of simpl but efficient simulation programs, important findings about the system behavior could be obtained. The different connection options of a third mass in the clutch are examined systematically.Calculation and test results are presented for an additional mass with frictional engagement and a clutch with continuous slip. The use of more efficient calculation methods and the systematic procedure for finding a solution clearly reduce the development expense.