摘要
考虑风与膜结构的耦合作用,研究索膜结构在顺风向和垂直向风作用下的抖振响应规律及特性。采用时程分析法,在结构的运动微分方程中利用风与结构之间的相对速度来考虑风与膜结构的耦合作用,采用逐步积分法在每一时间步内求解方程,并用该方法得到索膜结构的抖振响应规律以及耦合作用对膜结构抖振的影响规律。研究表明:索膜结构的耦合作用抑制了结构的抖振响应,风与结构耦合作用的大小与结构的振动速度有关。
Considering wind-structure interaction, cable-membrane structure buffeting analysis under horizontal and vertical wind has been carded out in this study. In time domain, wind-structure interaction was considered by the relative velocity of wind and the structure in the differential equations of structural system, which were solved by using step by step solution method. Results of buffeting response rules and the influence of wind-structure interaction on buffeting were found using the method. Research shows that when wind-structure interaction is considered, the buffeting responses of membrane structure are reduced and degree of the interaction relates to the vibration velocity of the membrane structure.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2008年第3期368-370,共3页
Journal of Liaoning Technical University (Natural Science)
基金
辽宁省教育厅基金资助项目(202183391)
关键词
索膜结构
耦合作用
抖振响应
时程分析法
cable-membrane structure
coupling effects
buffeting response
time domain analysis
