parametric design optimization of an automotive body crashworthiness improvement is presented. the thicknesses of parts are employed as design variables for optimization whose objective is to increase the maximum deceleration value of the vehicle center of gravity during an impact. using the taguchi method, this study analyzes the optimum conditions for design objectives and the impact factors ...

In order to explore the change in internal and external characteristics pressure fluctuation of large bulb tubular pump unit during deceleration, a transient steady three-dimensional (3D) numerical simulation is executed, based on standard k-? turbulence model boundary conditions such as flow rate. Finally, data are analyzed by wavelet method. There good agreement between experimental results. ...