摘要
以三层建筑结构为对象建立力学模型.首先导出其上含有减振器的振动系统的运动微分方程组,通过矩阵运算导出减振系统的振动响应和减振效率,然后按照惩罚函数优化方法计算减振器的力学特征参数.计算结果表明,应用这种方法计算建筑结构上减振器的力学参数在很宽的频率范围内都能满足工程设计所需的精度.
Taking a three-storied building as investigation object,its mechanical model is developed.Differential equations of motion are derived for a vibrational system with absorbers first,and then the vibrational response and damping efficiency of this system are computed by means of matrix operation.Finally,the mechanical characteristic parameters of absorbers are computed by using optimization with penalty function.It is shown by the numerical results that,using this computation method,the mechanical parameters of absorbs in the building can meet the requirements of accuracy needed for engineering design within a wide range of frequency.
出处
《兰州理工大学学报》
CAS
北大核心
2004年第5期146-148,共3页
Journal of Lanzhou University of Technology
基金
天津市自然科学基金(033602711)
关键词
动力减振器
减振效率
结构
优化设计
振动响应
dynamic absorber
damping efficiency
structure
optimization design
vibrational response
