Abstract
A large number of joints that make possible the smooth deployment of an articulated truss may lead to the unexpected variation of the whole dynamic characteristics of the truss. In this paper, attention is focused on exploring the joint characteristics and their effects not strictly following the conventional linear assumption. Particularly, the effects of cubic nonlinear characteristics of joints on the dynamic behavior of articulated trusses are investigated. First, the equivalent dynamic model of the truss cell in the frequency domain is developed for enhancing the computational efficiency. With the employment of the describing function method (DFM), the frequency responses of the planar articulated truss considering the cubic nonlinearity of joints are obtained analytically. Moreover, the transient responses of the articulated truss under external shock loads are obtained numerically. Subsequently, the variations in frequency obtained by the fast Fourier transformation (FFT) of the numerical results show consistent tendency compared with those obtained by the equivalent dynamic model of the planar articulated truss. Finally, several conclusions are presented at the end.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Structural Stability and Dynamics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
