摘要
以移动质量激励下的梁为研究对象,建立了移动质量-简支梁和移动质量-悬臂梁耦合振动模型。考虑了移动质量的重力、Corilous加速度和惯性加速度对梁横向振动的影响,利用得到的级数解编制程序分析了移动质量参数变化对梁动态响应的影响。建立了移动质量激励下的梁动态响应试验平台,通过试验得到了各种规格质量块以不同运动速度激励作用下的梁动态响应曲线。试验结果表明了移动质量激励下梁动态响应模型的正确性。
This paper presents dynamic response analysis models of a simply supported beam and a cantilever beam both subjected to a moving mass,respectively.The two models both considered influences of the gravitational force of the moving mass,the Corilous acceleration and its inertia acceleration on the lateral vibration of the beam.The individual and coupling effects of the velocity of the moving mass on the dynamic response of beams was investigated.A dynamic response measuring system for beams subjected to a moving mass was developed.The dynamic response curves were obtained under different specification standards of moving masses exciting on beam at different velocities.The experimental results show that the model of cantilever beam is accurate.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2010年第2期153-157,共5页
Journal of Vibration,Measurement & Diagnosis
基金
浙江省科技计划资助项目(编号:2008C21111)
中国博士后基金资助项目(编号:20080431099)
关键词
移动质量
动态响应
简支梁
悬臂梁
moving mass dynamic response simply supported beam cantilever beam
