International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 04 | Apr -2017
e-ISSN: 2395 -0056
www.irjet.net
p-ISSN: 2395-0072
DESIGN AND ANALYSIS OF VANE SPRING STRUCTURES G.Ashokkumar1, S.Rakesh babu2, C.Hareeswar3,S.Kumara swamy4, C.Vijayakumar5,M.Umamahesh6 1 Assistant
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Professor, Mechanical Department, Priyadarshini Institute of technology, ramachandrapuram, Tirupati Andhra Pradesh, India
M tech(student), Mechanical Department, VEMU INSTITUTE OF TECHNOLOGY, P. Kothakota Post, Near Pakala, Chittoor, Andhra Pradesh, India
Assistant Professor, Mechanical Department, Priyadarshini Institute of technology, ramachandrapuram, Tirupati Andhra Pradesh, India
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Abstract In the rotary compressor there is a vane. The function of the vane is to maintain a proper contact with the roller. For that purpose a compressible helical spring is employed. The spring is to be analyzed, designed as per the limiting conditions. This project deals with the design and analysis of the vane spring structures which are used in the rotary compressor by using ANSYS solver. ANSYS was used for analyzing the vane spring. Emphasis was on finding a better solution and an alternate solution for the conditions prevailing for the system. The design procedure starts with evaluation of the given spring parameters in static and fatigue conditions. The safe parameters are evaluated for a better solution. Then the model of the spring is made using CATIA software tools for testing in static and dynamic conditions. An alternate design is also worked out for the same design conditions there by providing an option for compressor design in future. Index Terms: vane spring, Catia, Ansys, static analysis, dynamic analysis .
1. INTRODUCTION 1.1 ROTARY COMPRESSOR In a rotary compressor the refrigerant is compressed by the rotating action of a roller inside a cylinder the roller rotates eccentrically (off-centre) around a shaft so that part of the roller is always in contact with the inside wall of the cylinder. A spring-mounted blade is always rubbing against the roller. The two points of contact create two sealed areas of continuously variable volume inside the cylinder.
Rotary compressor
At a certain point in the rotation of the roller, the intake port is exposed and a quantity of refrigerant is sucked into the cylinder, filling one of the sealed areas. As the roller continues to rotate the volume of the areas. As the roller continues to rotate the volume of the area the refrigerant occupies it reduced and the refrigerant is compressed.
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