Abstract：A finite element model of an axially moving beam under a moving load was established, and a method called node’s life and death was put forward to describe the state of nodes on a moving beam. This method let the number and length of the elements on the model to be constant, the parameters of nodes under different time steps transfer with less error, and thus it overcomes the shortcomings leaded by methods that change the number or length of elements. Finally, finite element dynamic model of gun firing in two different ways was established by this method and lateral dynamic response of muzzle points were calculated. Compared with previous algorithm, the result shows this method more in line with the actual condition.
罗炳华;高跃飞;刘荣华;贾强. 轴向运动梁受移动载荷作用的横向动力响应[J]. , 2011, 30(12): 59-63.
LUO Bing-hua;GAO Yue-fei;LIU Rong-hua;Zhao Peng. A study on lateral dynamic response of an axially moving beam under a moving load. , 2011, 30(12): 59-63.
2011, Vol. 30 
