Dynamic Analysis of a Variable Displacement Compressor for Vehicle Air Conditioners Using Finite Element Methods

910213

02/01/1991

Event
International Congress & Exposition
Authors Abstract
Content
Today, time available for production development is shorter and good quality development is required. Using the finite element method is a mean of meeting this requirement. This method of analysis is very adaptable to many fields and can predict static stress, strength, endurance, resonance, dynamic stress, thermal conductivity, convection, radiation, the optimum design, sound, fluid behavior, and electromagnetics in a short period. Furthermore, finite element methods are becoming more practical because of increased speed by computer vector operations and the main memory expansion of computers.
This paper outlines an analytical model for studying vibration characteristics including amplitude, modal shapes and stress while a variable displacement compressor is operating. Finite element analysis reveals the dynamic behavior of the mounts and body of this compressor. This dynamic behavior analysis is based on the shaft bearing load which is subjected to unsteady forces, calculated beforehand by dynamic behavior simulation. Based on these loads, eigenvalues and frequency responses, transient dynamic analysis is conducted using simultaneous inverse iteration and the Householder/QR methods. (See flow chart.)
Meta TagsDetails
DOI
https://doi.org/10.4271/910213
Pages
20
Citation
Hariu, N., Nakayama, K., and Hill, W., "Dynamic Analysis of a Variable Displacement Compressor for Vehicle Air Conditioners Using Finite Element Methods," SAE Technical Paper 910213, 1991, https://doi.org/10.4271/910213.
Additional Details
Publisher
Published
Feb 1, 1991
Product Code
910213
Content Type
Technical Paper
Language
English