公开(公告)号：US20210056243A1

公开(公告)日：2021-02-25

申请号：US16754672

申请日：2019-04-17

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Bo WANG ,  Peng HAO ,  Xiangtao MA ,  Kaifan DU ,  Jie GUO ,  Xi ZHANG

IPC: G06F30/17 ,  G06F30/23 ,  G06F17/18 ,  G06T17/20

Abstract: A method for establishing a geometrical imperfection database of aerospace thin-walled structures is disclosed. The method comprises the following steps: 1) design the shell quality inspection card that is suitable and convenient to measure the geometrical imperfections for field workers. Obtain the parameters and geometrical imperfections of shells by filling data of measurement points in the shell quality inspection card; 2) perform characteristics combing, mathematical description and component analysis for the geometrical imperfections obtained in the first step; 3) collect and analyze the geometrical imperfection information of multiple aerospace thin-walled shells and establish the geometrical imperfection database based on the first step and second step. The method will effectively serve the development of aerospace equipment, shorten the design cycle and provide guidance and specifications for the design of the thin-walled components carrying main load.

公开(公告)号：US20240378346A1

公开(公告)日：2024-11-14

申请号：US18784658

申请日：2024-07-25

Applicant: Dalian University of Technology

Inventor： Xiangtao MA ,  Bo WANG ,  Peng HAO ,  Zitong ZHOU

IPC: G06F30/23 ,  G06F30/15

Abstract: The present application provides a thin-walled shell model updating method and system. The method includes converting an influence of fine feature structures in a space shell structure on stiffness and mass equivalently onto a skin and a stiffener, so as to simulate the influence of the fine feature structures on a bearing capacity of a whole structure.