北京大学学报（自然科学版） ›› 2026, Vol. 62 ›› Issue (1): 35-43.DOI: 10.13209/j.0479-8023.2025.121

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法兰紧固连接系统正向设计规范研究

程全士1,2, 亓泽宇3, 李志相4, 李兆兴5, 柳思成1,2, 周泉知1,2, 卢浩1,2, 郭翔鹰5, 赵振4, 刘才山3,†
  

  1. 1. 天津市紧固连接技术重点实验室, 天津 300300 2. 航天精工股份有限公司, 天津 300300 3. 北京大学力学与工程科学学院, 湍流与复杂系统国家重点实验室, 北京 100871 4. 北京航空航天大学航空科学与工程学院, 北京 100191 5. 北京工业大学机械结构非线性振动与强度北京市重点实验室, 北京 100124
  • 收稿日期:2024-11-26 修回日期:2024-12-10 出版日期:2026-01-20 发布日期:2026-01-20
  • 通讯作者: 刘才山, E-mail: liucs(at)pku.edu.cn
  • 基金资助:
    国家自然科学基金(U2541232, U24B6005)资助

Research on the Forward Design Standards for Fastening and Connecting Systems of Flanges

CHENG Quanshi1,2, QI Zeyu3, LI Zhixiang4, LI Zhaoxing5, LIU Sicheng1,2, ZHOU Quanzhi1,2, LU Hao1,2, GUO Xiangying5, ZHAO Zhen4, LIU Caishan3,†
  

  1. 1. Tianjin Key Laboratory of Fastening and Joining Technology, Tianjin 300300 2. Aerospace Precision Production Co. Ltd., Tianjin 300300

    3. State Key Laboratory for Turbulence and Complex Systems, School of Mechanics and Engineering Science, Peking University, Beijing 100871

    4. School of Aeronautic Science and Engineering, Beihang University, Beijing 100191

    5. Beijing Key Laboratory of Nonlinear Vibrations and Strength of Mechanical Structures, Beijing University of Technology, Beijing 100124

  • Received:2024-11-26 Revised:2024-12-10 Online:2026-01-20 Published:2026-01-20
  • Contact: LIU Caishan, E-mail: liucs(at)pku.edu.cn

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摘要：

针对现有法兰紧固连接系统在初步选型、排布优化、连接响应分析和安全性评估方面存在的不足, 提出一种面向高性能和复杂工况的正向设计方法, 并建立螺栓初始排布设计准则及其优化方法。基于螺栓节点载荷提取技术, 构建高精度的单螺栓装配承载力学模型。提出改进的高强度单螺栓的应力与强度校核安全标准, 形成一套完整、高效的正向设计体系。通过算例分析对该方法进行验证, 结果表明, 所构建的正向设计规范能够有效地避免过设计和欠设计问题, 实现法兰紧固连接系统从构型初步设计、局部承载校核到整体可靠性评估的全过程正向设计。

关键词: 法兰, 螺栓连接, 正向设计, 可靠性

Abstract:

To address the limitations of flanges with bolted joints systems in the preliminary selection, layout optimization, response analysis, and safety assessment, a forward design method oriented to high performance and complex service conditions is proposed. Design criteria and an optimization method for the layout of bolted joints are established. Based on the load extraction technique, a high-accuracy mechanical model for the load-bearing behavior of a single bolted joint is developed. An improved safety standard for the stress and strength verification of a high-strength bolted joint is proposed and a complete and efficient forward design system is established. The proposed method is validated through numerical examples. The results demonstrate that the developed forward design framework can effectively avoid over-design and under-design, enabling a full-process forward design of flange bolted joint systems from preliminary configuration design and local load-bearing verification to overall reliability assessment.

Key words: flange, bolted joint, forward design, reliability

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