摘要
为了求解车桥系统振动方程中随时间变化的刚度矩阵、质量矩阵和阻尼矩阵,采用将列车-桥梁作为一个整体系统,用能量法导出了车桥系统的刚度矩阵、质量矩阵和阻尼矩阵.用此方法对某连续钢桁梁桥的振动响应进行了仿真分析,并计算了某简支钢桁梁桥的横向振动,与实测值的波形图接近,证明该方法正确可靠.
To solve the matrices of stiff, mass and damping varying with time in vehicle-bridge vibration equations, the train and bridge were coupled together as one composite system. The vibration equations of vehicle-bridge time varying system were established by means of potential energy principle. The vibration responses of a continuous truss girder bridge were analyzed by using this method. The lateral vibration calculation results of a truss girder bridge are close to the testing values. This confirms the reliability of the method.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2013年第3期385-388,共4页
Journal of Beijing University of Technology
基金
国家自然科学基金资助项目(50078006)
湖南省自然科学基金资助项目(07JJ6098)
关键词
钢桁梁桥
列车
振动
steel truss bridge
train
vibration
