Dynamic Analysis of Flight Vehicle Airframe Cabins with Slot-Nut Type Bolted Flange Joints

Shuo Zhang, Jianfeng Yang, Yongjie Gou, Ning Guo, Chao Xu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To improve the accuracy of dynamic analysis for flight vehicle airframe cabins with slot-nut type bolted flange joints, a modal vibration analysis method considering nonlinear stiffness of bolted flange joint is firstly proposed. An equivalent structural model is created to represent the bolted flange joint and cabin structure. Modal analysis is performed and the first three order bending frequencies are extracted. By using the orthogonal experimental method, the importance analysis of the design factors including connection thickness, stud number, and stud specifications is carried out. The results show that the proposed dynamic analysis method can well model the effect of slot-nut type bolted flange joint on flight vehicle airframe stiffness and normal vibration. The conncetion thickness of flange and the number of stud are critical design factors affecting cabin vibration frequency.

Original languageEnglish
Title of host publicationAdvances in Applied Nonlinear Dynamics, Vibration, and Control – 2024 - The Proceedings of 2024 International Conference on Applied Nonlinear Dynamics, Vibration and Control, ICANDVC 2024
EditorsXingjian Jing, Dixiong Yang, Hu Ding, Jiqiang Wang
PublisherSpringer Science and Business Media Deutschland GmbH
Pages307-321
Number of pages15
ISBN (Print)9789819633166
DOIs
StatePublished - 2025
EventInternational Conference on Applied Nonlinear Dynamics, Vibration and Control, ICANDVC 2024 - Dalian, China
Duration: 25 Oct 202427 Oct 2024

Publication series

NameLecture Notes in Electrical Engineering
Volume1373 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Conference on Applied Nonlinear Dynamics, Vibration and Control, ICANDVC 2024
Country/TerritoryChina
CityDalian
Period25/10/2427/10/24

Keywords

  • Bending vibration
  • Flight vehicle
  • Importance analysis
  • Nonlinear stiffness
  • Slot-nut type joint

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