Mathematical Modelling of Vibration Response Characteristics for Dissimilar Hot Plate Welded Polyamide 6 Composite Beams

Kara M., Oztoprak N., Secgin A., Sayer S. , Yeni C. E.

INTERNATIONAL POLYMER PROCESSING, vol.32, pp.489-501, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32
  • Publication Date: 2017
  • Doi Number: 10.3139/217.3409
  • Page Numbers: pp.489-501


This study is concerned with the mathematical modelling of the vibration response characteristic of a special dissimilar composite beam based on experimental modal analysis. Here, experimental modal analyses of three different dissimilar polyamide 6 composite beams, which are connected to each other by hot plate welding are performed. The measured natural frequencies are compared with finite element predictions for verification purposes. Modal information obtained by experiments is used to construct a mathematical model representing vibration response characteristic of beams by applying multi degree of freedom curve fitting method. The model showing modal characteristics of dissimilar beams is now ready to be used in different kinds of excitations to predict the frequency response of vibration.