Determination Of Moving Tank And Missile Impact Forces On A Bridge Structure

摘要

A method to determine the moving tank and missile impact forces on a bridge is developed. The present method is an online adaptive recursive inverse algorithm, which is composed of the Kalman filter and the recursive least square estimator (RLSE), to estimate the force inputs on the bridge structure. The state equations of the bridge structure were constructed by using the model superposition and orthogonal technique. By adopting this inverse method, the moving tank and missile impact force inputs acting on the bridge structure system can be estimated from the measured dynamic responses. Besides, this work presents an efficient weighting factor applied in the RLSE, which is capable of providing a reasonable estimation results. The results obtained from the simulations show that the method is effective in determining the moving tank and missile impact forces, so that the acceptable results can be obtained.