【作者】 朱秀栋； 丁振宇； 高增梁；

【Author】 ZHU Xiudong;DING Zhenyu;GAO Zengliang;Institute of Process Equipment and Control Engineering,Zhejiang University of Technology;

【机构】 浙江工业大学化工机械设计研究所；

【摘要】 针对塔器在横风向涡激共振作用下易引发疲劳失效问题,开展了塔器振动疲劳设计方法研究。首先,通过对比国内外标准中横风共振响应的理论计算方法,发现计算结果差异明显,分析各设计规范中关键系数的取值差异及其与实际工程响应不符的原因,探讨其合理性与适用性;其次,基于实时振动监测数据与CFD流场仿真,对关键参数升力系数和阻尼比等进行修正,并对横风共振过程进行有限元模拟。最后,根据SH/T 3098-2025标准中附录F给出的适用于横风振动作用下的疲劳评定方法,评价加装调谐质量阻尼器前后塔设备的疲劳寿命,为高耸塔设备在风致共振工况下的安全运行提供技术支撑。更多还原

【Abstract】 To address the issue that towers are prone to fatigue damage under crosswind vortexinduced resonance,a study on the vibration fatigue design method for towers is conducted.First,by comparing the theoretical calculation methods of crosswind resonance response in domestic and foreign standards,it was found that there were significant differences in the calculation results.The differences in the values of key coefficients across design codes and the causes for their inconsistency with actual engineering responses are analyzed,with their rationality and applicability discussed.Second,based on real-time vibration monitoring data and CFD flow field simulations,key parameters such as the lift coefficient and damping ratio are corrected,and finite element analysis of the crosswind resonance process is performed.Finally,in accordance with the fatigue assessment method for vortex-induced vibration specified in Appendix F of the SH/T3098 standard,the fatigue lives of tower equipment without and with a tuned mass damper(TMD) are evaluated respectively,providing technical support for the safe operation of tall tower equipment under wind-induced resonance conditions.更多还原