公开(公告)号：US09645054B2

公开(公告)日：2017-05-09

申请号：US14781941

申请日：2014-02-12

Applicant: Dalian University of Technology

Inventor： Bo Wang ,  Peng Hao ,  Gang Li ,  Kuo Tian ,  Zeng Meng ,  Kaifan Du ,  Yan Zhou ,  Xi Zhang ,  Xiaohan Tang ,  Bin Wang ,  Hongzhi Luo

IPC: G01M99/00 ,  B64C1/06 ,  G06F17/50

CPC classification number: G01M99/007 ,  B64C1/068 ,  G06F17/5018 ,  G06F2217/16 ,  G06F2217/46

Abstract: A method for determining a reduction factor of a bearing capacity of an axial load cylindrical shell structure is described. In the method, a depression defect is introduced in a manner of applying a radial disturbance load. Then, an influence rule of a depression defect amplitude of a single point to an axial load bearing capacity is analyzed by using numerical values; then, defect sensitivity analysis is performed on depression defects of multiple points; then, experiment design sampling is performed by using load amplitude values and load position distribution as design variables; and finally, the most disadvantageous disturbance load of the multiple points that limits the defect amplitude is searched for, and a reduction factor of the bearing capacity of the axial load cylindrical shell structure is determined.