Direct Integration Methods with Integral Model for Dynamic Systems |
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Authors: | He-xiang Lü Hong-jie Yu Chun-hang Qiu |
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Institution: | Department of Engineering Mechanics, Dalian University of Technology, Dalian 116023, P R China |
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Abstract: | A new approach which is a direct integration method with integral model (DIM_IM) to solve dynamic governing equations is presented. The governing equations are integrated into the integral equations. An algorithm with explicit and predict_correct and self_starting and fourth_order accuracy to integrate the integral equations is given. Theoretical analysis and numerical examples show that DIM_IM discribed in this paper suitable for strong nonlinear and non_conservative system have higher accuracy than central difference,Houbolt,Newmark and Wilson_Theta methods. |
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Keywords: | numerical integration step_by_step integration nonlinear integral equation |
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