OPTIMUM FOR APPENDIX DAMPER OF DISSIPATION STRUCTURE UNDER RANDOM EXCITATION

摘要：

Dissipation structures possess non-classical damping because of the supplemental damping devices. Pseudo-excitation method has been applied to gain the random response of dissipation structure since the method can be used to analysis non-classical damping. After Pseudo-responses separated to two parts of real and complex, the closing solution of mean square response for structure stories under random excitation was developed in this paper. The efficiency of computing was improved as real mode is only related to mass matrix and stiff matrix while damping matrix cannot change mode vectors. After objective function built GA has been used for optimal appendix damping coefficient in multiple degrees of freedom (MDOF) discrete system

关键词： Dissipating structure Random vibration Pseudo-excitation GA

作者: Qing-Guang He Yong-Feng Du

作者单位: Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, LanZhou, 730050, P.R. China

会议类型: 国际会议

会议名称: 第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)

会议地点: 长沙

会议语种:英文

页码: 845-848

在线出版日期: 2008-10-19（万方平台首次上网日期，不代表论文的发表时间）