汽车当量轮重的光纤传感器测量  

Fiber optic sensor measurement of equivalent truck wheel weights

作　　者：李庆斌[1] 尹玉先[2] 

机构地区：[1]清华大学水利水电工程系,北京100084 [2]平顶山工学院市政系,平顶山467001

出　　处：《清华大学学报（自然科学版）》2004年第6期801-803,共3页Journal of Tsinghua University(Science and Technology)

基　　金：国家杰出青年基金资助项目 ( 5 0 2 2 5 92 7) ;北京市自然科学基金资助项目 ( 80 2 2 0 10 )

摘　　要：汽车的重量对公路和桥梁的安全和寿命至关重要 ,该文给出光纤传感器测量汽车当量轮重的理论模型 ,进而可以用来测量汽车的重量。假设纤芯、光纤保护层和橡胶垫片均是弹性的 ,界面间无相对滑移变形 ,根据变形协调条件得到平衡微分方程。进而利用相应的边界条件得到其理论模型。文中还利用实验验证了理论和试验结果的一致性。表明该光纤传感理论模型可以用来测量汽车的轮重 。Truck weight has an important effect on the safety and life of bridges and pavement. This paper presents the theoretical model for measuring truck wheel weight using fiber optic sensors, which can be used to calculate the truck weight. The fiber core, the optical fiber coating and the plastic cushion are all assumed to be elastic. The bonding surfaces are assumed to be intact, so there is no relative slip deformation at the interface between the matrix and the optical fiber coating or between the coating and the fiber core. Results from the sensor agree well with actual truck weight tests, which shows that the method provides a convenient method to measure truck weights.

关 键 词：路面 汽车轮重 光纤传感器 保护层 纤芯 界面 

分 类 号：U416.2[交通运输工程—道路与铁道工程]