Parameter optimization and calculation of ADF model for vibration damping material
Cao You-qiang1; Deng Zhao-xing1,2; Wang Pan1,2;Li Jun1
1.Insitute of Mechanical Engineering, Chongqing University, Chongqing,400030, China;2. State Key Laboratory of Vehicle NVH and Safety Control, 400039, China
Abstract：An optimization algorithm which is composed of particle swarm optimization(PSO) and sequential quadratic programming (SQP) algorithm is presented for the multi-Parameter, multi-objective,nonlinear optimization of ADF model of structure damping material. The results are compared with those of standard rheologic model and fractional derivative model as well as the experiment results. Based on the ADF mathematical model, the dynamic models of viscoelastic lumped parameter system and damping sandwich board are established, and the modal analysis and damping prediction are done. The results show that this method can not only obtain the better optimum solution, but also get the accurate and reliable value which will correctly describe the constitutive characteristics of damping material.
2011, Vol. 30 
