选煤厂房楼板抗振优化设计  

Anti-vibration Optimization for Floor of Coal Preparation Plant

作　　者：张旭红[1] 郭昭胜[1] 张善元[1] 

机构地区：[1]太原理工大学建筑与土木工程学院,山西太原030024

出　　处：《太原理工大学学报》2006年第4期386-388,共3页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金资助项目(10472076);太原理工大学青年科学基金资助项目(24041191)

摘　　要：基于简化连续正交异性板模型和特征频率灵敏度分析技术,提出了一种选煤厂房楼板抗振优化设计方法。首先将具分布参数的无限自由度体系简化为多自由度体系,再根据刚度矩阵中每个元素相对于特征频率的灵敏度分析结果,得到动荷载激励下的梁板组合楼盖抗振优化设计结果。有限元动力分析与现场实测结果表明,该优化设计结果具有精确可靠的优点,与其他优化方法相比,本优化方法可大大减少计算时间,更适于在实际中推广应用。A new anti-vibration optimization method for floor of Coal Preparation Plant is presented in this paper. This method is based on a simply continuous orthotropic plate model and the eigenfrequency sensitivity analysis technique. According to the sensitivity analysis results of eigenfrequency to each stiffness parameter in the stiffness matrix, the anti-vibration optimization design of the slab/beam composite floor system under dynamic excitation is obtained. And the steady-state dynamic response of the optimization design is achieved by using finite-element-method to evaluate the anti-vibration effect. Numerical analysis results and experimental measurements show that the optimization design possesses the advantage of exactitude and reliability; and the time spent by the optimization method is reduced notably compared with other optimization approach.

关 键 词：正交各向异性板 灵敏度分析 抗振 优化设计 

分 类 号：TU272.5[建筑科学—建筑设计及理论] TU375.2