摘要
本文研究了全复合材料大型冷却塔在风振、地震作用下的振动问题。该类问题中由于风机的频率与塔体的自振频率接近，容易造成共振。经研究发现，风和地震将会在共振区引起显著影响，这影响了塔的可靠度。通过改变塔体框架结构，使风机频率远离结构频率，塔体的风振、地震响应得以改善。
The dynamical behaviour of cooling tower in wind-induced vibration and earthquake has been investigated, with analysis of example,we found that dynamical responce in resonace region was influenced strongly. After modified the structure, dynamical behavioue has been improved.
出处
《噪声与振动控制》
CSCD
1998年第3期11-16,共6页
Noise and Vibration Control
关键词
复合材料
大型
冷却塔
风振
地震响应
cooling tower, finite element,wind-induced vibration earthquake
