A Framework for Predicting Nonlinear Frequency Response Functions of a Bolted Beam using Force-Controlled Technique in MSC NASTRAN SOL128

Authors

  • A,R Bahari
  • M.A Yunus
  • M.S.M Sani
  • M.A Rahim
  • M. Rusli
  • M.N. Abdul Rani

Keywords:

NOLIN3, NOLIN4, MSC NASTRAN SOL128;, NOLIN3; NOLIN4force-controlled technique, nonlinear frequency response function

Abstract

This paper investigates nonlinear dynamic behaviour in a bolted beam.  Force-Controlled Technique (FCT), implemented in MSC NASTRAN SOL128, is used to predict the Nonlinear Frequency Response Functions (NLFRFs) of the beam. The predicted NLFRFs are analysed to determine softening or hardening trends resulting from the bolted joint-induced nonlinearity. The results show that the adopted FCT framework can identify amplitude-dependent changes in resonance frequency and damping, which are in line with established results reported in previous studies. This study provides a practical approach and reliable means for identifying nonlinear dynamic behaviour in bolted structures, and also supports improved modelling of bolted joint-induced nonlinearity

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Published

2025-12-30

How to Cite

Bahari, A., Yunus, M. ., Sani, M., Rahim, M. ., Rusli, M., & Abdul Rani, M. (2025). A Framework for Predicting Nonlinear Frequency Response Functions of a Bolted Beam using Force-Controlled Technique in MSC NASTRAN SOL128. Journal of Acoustics and Vibration Research, 3(2), 1–8. Retrieved from https://www.journal.svam.my/index.php/javr/article/view/52

Issue

Vol. 3 No. 2 (2025): December 2025

Section

Articles

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