Thickness Optimization Study of Constrained Damping Plate
Based on Kirchhoff hypothesis, the vibration equations of constrained damping plate are established and the equations are solved.Influence of the thicknesses of constrained layer and viscoelastic layer on structural vibration character are analyzed, the curves of natural frequency and loss factor with different thicknesses of viscoelastic layer and constrained layer are obtained.The figures indicated that it is not the more thickness of the viscoelastic layer and constrained layer the higher of the loss factor.Both of the thicknesses have optimum values, which are interact.The relationship between of loss factor and added mass is investigated.The results show that various thickness plans can obtain the same loss factor but very different added mass.So it is very necessary to optimize the thickness of viscoelastic layer and constrained layer to obtain the best damping effect.
Constrained damping plate Loss factor Added mass Thickness optimization
Hao Chuan Wan Ling Zheng Yi Nong Li
Leshan Vocational & Technical College,Leshan,614000,China State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing,400044,China
国际会议
上海
英文
436-439
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）