航天器环境工程2024，Vol.41Issue(4)：489-496,8.DOI:10.12126/see.2023177
固体发动机振动试验典型工况下的螺栓连接计算模型及验证
Calculation model and verification of bolt connection under typical working conditions in solid propellant motor vibration test
雷兵 1刘兵 1翟晓 1张龙飞 1王潇奕 1杜昱坤1
作者信息
- 1. 西安航天动力测控技术研究所,西安 710025
- 折叠
摘要
Abstract
The bolts connecting the vibration test fixtures are mainly subjected to lateral vibration load and inevitably loosen under the horizontal working condition in solid propellant motor vibration test.To address the process issues affecting the effectiveness of the test,the mechanism of bolt loosening was analyzed by an inclined slider model.Test validation was carried out through electromagnetic shocker under typical horizontal working condition of the solid propellant motor vibration test.The recommended ratio of the connection installation pre-tightening force to the test lateral load for commonly used M16 bolts was given.The results show that under the typical horizontal working condition in the solid propellant motor vibration test,to ensure the reliability of bolt connection during the vibration test(usually not exceeding 10 min),the recommended ratio of the connection installation pre-tightening force to the test lateral vibration load for commonly used M16 bolts is 12.The proposed research may provide not only a reference for the selection of bolt aperture and quantity in the fixture design for solid propellant motor vibration test but also support for the improvement of related test technology.关键词
固体发动机/振动试验/螺栓松动/横向振动载荷/预紧力Key words
solid propellant motor/vibration test/bolt loosening/lateral vibration load/pre-tightening force分类
航空航天引用本文复制引用
雷兵,刘兵,翟晓,张龙飞,王潇奕,杜昱坤..固体发动机振动试验典型工况下的螺栓连接计算模型及验证[J].航天器环境工程,2024,41(4):489-496,8.
