Analysis for Roll-bending Forming Quality of Spaceflight Thin-walled Cylindrical Workpieces Based on PointCPP-LSF Method

被引：0
|
作者：
Ai Q. [1 ]
Zhang J. [1 ]
Cheng H. [2 ]
Lyu Y. [1 ]
Zuo L. [1 ]
Hu L. [2 ]
机构：
[1] College of Mechanical Engineering, Donghua University, Shanghai
[2] Shanghai Aerospace Equipments Manufacturer Co., Ltd., Shanghai
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2022年 / 33卷 / 08期
关键词：
Cylindrical fitting; Deep learning; Least square fitting(LSF); Parameter prediction; Point cloud;
D O I：
10.3969/j.issn.1004-132X.2022.08.013
中图分类号：
学科分类号：
摘要：
In order to solve the problems that the accuracy and speed requirements of the roll-bending forming quality detection for spaceflight thin-walled cylindrical workpieces might not be met due to the high dependence of the traditional cylindrical fitting method on the initial values of parameters, a PointCPP-LSF method was proposed to realize the analysis of spaceflight thin-walled cylindrical workpiece roll-bending forming quality. Based on point cloud deep learning, a point network for cylindrical parameter prediction (PointCPP) model was established to obtain reliable initial values, and then the cylindrical parameters were iteratively optimized based on the improved LSF method, and combined with the gross error elimination mechanism, the robust curvature radius calculation results were finally obtained. The experimental results show that the proposed method may effectively improve the accuracy and speed of roll-bending forming quality detection for spaceflight thin-walled cylindrical workpieces. © 2022, China Mechanical Engineering Magazine Office. All right reserved.
引用
收藏
页码：977 / 985
页数：8
相关论文
共 17 条
  • [1] GUO Rong, Research on Automatic Measuring System of Plate's Curvature for Three-roll Bender, (2013)
  • [2] ZHAO Yuanyuan, ZENG Fei, LI Yang, Et al., 3D Measurement Technique for Film Cooling Holes Based on Light-field Imaging, Acta Aeronautica et Astronautica Sinica, 42, 10, pp. 416-426, (2021)
  • [3] ZHANG Hongying, LI Qidong, LI Wenlong, Et al., An Effective Extraction Method of Aviation Engine Blade's Mean Camber Line Based on MLS Method, China Mechanical Engineering, 25, 7, pp. 959-964, (2014)
  • [4] NURUNNABI A A M, SADAHIRO Y, LINDENBERGH R C., Robust Cylinder Fitting in Three-dimensional Point Cloud Data, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, pp. 63-70, (2017)
  • [5] TRAN T T, CAO V T, LAURENDEAU D., Extraction of Cylinders and Estimation of Their Parameters from Point Clouds[J], Computers & Graphics, 46, pp. 345-357, (2015)
  • [6] BOLLES R C, FISCHLER M A., A RANSAC-based Approach to Model Fitting and Its Application to Finding Cylinders in Range Data, International Joint Conference on Artificial Intelligence, pp. 637-643, (1981)
  • [7] LIU Yuanpeng, ZHANG Dinghua, Study on Evaluation of Cylinder Geometric Parameters in Reverse Engineering, Mechanical Science and Technology for Aerospace Engineering, 24, 3, pp. 310-311, (2005)
  • [8] QIN Shiwei, PAN Guorong, GU Chuan, Et al., Fitting of Spatial Cylindrical Surface Based on Genetic Algorithm, Journal of Tongji University(Natural Science), 38, 4, pp. 604-607, (2010)
  • [9] YAN Yu, WANG Jiexian, Cylindrical Fitting Method of Laser Scanner Point Cloud Data, Science of Surveying and Mapping, 43, 6, pp. 83-87, (2018)
  • [10] CHEN Leilei, HUANG Meifa, XIAO Mengmeng, Et al., Calculation of Rotation Surface Form Errors by Least Square Based on Coordinate Transformation, China Mechanical Engineering, 25, 4, pp. 522-526, (2014)
12