Failure analysis and cost analysis of C.I. Flange Coupling
Sujit Kumar Garai ; Anupam Barik ; Sujay Biswas ; Abhijit Hazra ; Rohit Jana ;
A Coupling is a device which transmits power between two shafts rotating at designed speed. It is the important part of any power transmission system and may continue long time if design and cost analysis is maintained properly and the product can be chosen by the users. The present study of this paper is to reduce the cost of production by selecting proper designing process. The stress analysis that acting on the bolts, keys, hub and flange by making it uniform strengthens. The stress in the threaded part of the bolt will be higher than that in the shank. Hence a greater portion of the bolt will be absorbed at the region of the threaded part which may fracture the threaded portion because of its small length. An axial hole is drilled at the centre of the bolt through the head as far as thread portion such that the stress in the bolt is uniformly distributed along the length of the bolt. This consideration may also be taken in designing hub and flange. A special care should be taken during operation of key way in the hub portion to avoid stress concentration in keys and hub. In this paper there are explanation of detailed designing process for effective cost analysis.