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《Journal of Zhejiang University(Engineering Science)》 2017-01
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Calculation method for deformation of inconsecutive impacts on change-points

TONG Shui-guang;JIA Ya-ping;YU Yue;TANG Ning;XIE Guo-sheng;SHEN Qiang;CONG Fei-yun;Institute of Mechanical Engineering,Zhejiang University;Hangzhou Fork Group Limited Company;  
The accumulated deformation of inconsecutive impacts on change-points was analyzed,and the controllable cascade form deformation accumulation method was proposed based on the parallel form overlay method and the cascade form accumulation method.The numerical simulation for dynamic test of forklift overhead guard was conducted as an example.The parallel form overlay deformation method,the cascade form deformation accumulation method and the controllable cascade form deformation accumulation method were employed to respectively compute the final deformation.The accuracy and availability of these three methods were analyzed.Results indicated that the first method had the shortest calculation time,but with the biggest result error.The second method had the most precise result,but with the longest calculation time.The controllable cascade form deformation accumulation method shortened the calculation time by 74% at the same time of ensuring the calculation accuracy compared with the cascade form deformation accumulation method,and effectively solved the problems existing in the former two methods.
【Fund】: 浙江省自然科学基金资助项目(LZ15E050001 LY17E050009);; 国家自然科学基金资助项目(51305392)
【CateGory Index】: TH123
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