Stress analysis of a compressor assembly subjected to mechanical and thermal loadings

Rao, MNB and Kumaran, KSS (1974) Stress analysis of a compressor assembly subjected to mechanical and thermal loadings. In: Seminar on the Role of Computers in Structural Analysis, Design and Optimisation, 13-14 Jun 1974, Bangalore, India.

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Abstract

The state of elastic stresses in a seven stage compressor disk drum rotor assembly subjected to mechanical and thermal loadings is investigated. The stress analysis is carried out by using the finite element technique employing the displacement method. A consistent technique is derived in order to discretize distributed surface loadings, centrifugal and thermal loadings. A general computer program in Fortran language which can take into account the variation of material properties due to temperature variations has been written for calculating stresses and deflections due to various loadings. Some numerical examples for which solutions are available by exact methods are presented to substantiate various proposed procedures. Numerical results for the stresses and deflections at a few selected points in the compressor assembly obtained in respect of a few grid idealizations are also presented and their accuracy discussed.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Combined stress;Compressor rotors;Elastic deformation;Finite element method;Stress analysis;Thermal stresses;Bending; Centrifuging stress;Computer programs;Displacement measurement;Fortran;Mechanical properties
Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
ENGINEERING > Mechanical Engineering
Division/Department: Surface Engineering Division, Other
Depositing User: Mrs Neetu Chandra
Date Deposited: 21 Jan 2008
Last Modified: 24 May 2010 09:55
URI: http://nal-ir.nal.res.in/id/eprint/4490

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