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Analysis and design of machine foundations at resonance

Sridharan, A and Dash, AK (1999) Analysis and design of machine foundations at resonance. In: 11th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, AUG 16-20, 1999, Seoul, South Korea.

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Abstract

The design of machine foundations are done on the basis of two principal criteria viz., vibration amplitude should be within the permissible limits and natural frequency of machine-foundation-soil system should be away from the operating frequency (i.e. avoidance of resonance condition). In this paper the nondimensional amplitude factor M-m or M-r m and the nondimensional frequency factor a(o m) at resonance are related using elastic half space theory and is used as a new approach for a simplified design procedure for the design of machine foundations for all the modes of vibration fiz. vertical, horizontal, rocking and torsional for rigid base pressure distribution and weighted average displacement condition. The analysis show that one need not know the value of Poisson's ratio for rotating mass system for all the modes of vibration.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to A A Balkema.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 16 Mar 2012 08:33
Last Modified: 16 Mar 2012 08:33
URI: http://eprints.iisc.ernet.in/id/eprint/43916

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