Design and characterization of powertrain mounts for an electric vehicle
Taking the electric motor and compressor of an enterprise as the research object,the powertrain dynamics model of electric vehicle was established,and the system modes were analyzed by ADAMS modelling and MATLAB programming respectively;for the coupling vibration problem of decoupling rate in the modal analysis of the electric motor,the decoupling rate was optimized and analyzed by using MATLAB in conjunction with Isight software;nonlinear stiffness design of the optimized mounting system was carried out.Based on the 28 working conditions of GM vehicles,the classical and extreme working conditions in the 28 working conditions were analyzed by multibody dynamics,and the displacement and angle of the centre of mass of the powertrain,the displacement of the elastic centre of the mount,and the load on the mount were obtained;and the static and dynamic analyses of the mount bracket were carried out by using the finite element analysis software,and the nonlinear stiffness design of the mount and the reasonableness of the design of the bracket were calibrated.
decouplingnonlinear stiffness design28 working conditionsfinite element simulation
NETL
NSTL
万方数据
维普
