Transverse vibrations of trusses

Krishna Murty, A. V. ; Joga Rao, C. V. (1966) Transverse vibrations of trusses Journal of the Aeronautical Society of India, 18 (2). pp. 41-46. ISSN 0001-9267

PDF - Publisher Version


Lumped mass methods have been extensively used to obtain natural frequencies and mode shapes of beams in transverse vibration. Lumped inertia methods have also been used in studying vibration characteristics of beams and girder floors. In this paper characteristics of transverse vibrations of pin jointed trusses are obtained by the use of a rational method of lumping inertia forces. The effective inertia force at each joint is determined by considering the distribution of inertia force in all the members meeting at the joint. Natural frequencies of transverse vibration obtained by this method are compared with those obtained by the method of lumped masses and the discrepancies are found to be considerable particularly at higher frequencies. A method of condensing matrices to obtain natural frequencies is also included.

Item Type:Article
Source:Copyright of this article belongs to Aeronautical Society of India.
ID Code:93887
Deposited On:29 Jun 2012 08:39
Last Modified:19 May 2016 06:50

Repository Staff Only: item control page