To explore the distribution law of the cumulative-plastic deformation energy on MDOFS, the demand for the cumulative-plastic deformation energy as well as the distribution coefficient along the layers are derived. Furthermore, sensitivity analysis is carried out for 16 working conditions, considering all these possibilities of local failure or damage. And then the sensitivity influencing rule is obtained. The results show that the distribution coefficient of the cumulative-plastic deformation energy is mainly determined by the gravity( ), the yield shear coefficient( ), the stiffness( ) and the cumulative-plastic deformation ratio( ). The top floor parameters have no significant effect on the distribution of the cumulative-plastic deformation energy. In the cases of decreasing layer by layer and weakness in the middle floor, the cumulative-plastic deformation energy distribution is positively correlated with and , and negatively correlated with , respectively. The cumulative-plastic deformation energy released from the middle-weakness floor will redistribute to the neighboring layers according to the ratio of the initial cumulative-plastic deformation energy obtained in these layers.
屠冰冰;赵 冬. MDOFS累积塑性变形能的理论研究与敏感性分析[J]. , 2014, 33(13): 154-160.
Tu Bing-bing;Zhao Dong. Theoretical study and sensitivity analysis of the cumulative-plastic deformation energy on MDOFS. , 2014, 33(13): 154-160.