1. The lid of a pressure vessel is clamped using 10 bolts, V2\"-13, class 5 stee
ID: 2087802 • Letter: 1
Question
1. The lid of a pressure vessel is clamped using 10 bolts, V2"-13, class 5 steel bolts. E- 30 (10) psi It is assumed that all bolts carry the same load. The solid shank of the bolt is within the clamping area. The spring constants of the 3 components were determined experimentally, e with k?zk3= 4k, and K,bolt- The vessel pressurhber is 8 radius. The internal pressure in the vessel varies cyclically from atmospheric to 300 psi. Determine the minimum bolt preload (initial tightening) of the bolt needed to avoid the separation of the components. Use a safety factor-2 against separation. Zinc 3"Explanation / Answer
1.
no. of bolts= 5
E IS SUPERFLOUS DATA
AS ALL MEMBERS ARE IN SERIES EQU. STIFFNESS = .67
TO CALCULATE CHAMBER FORCE,Fc= p*a= 300*pi*8^2
Fc= 60288lbf after considering factor of safety, new fc= 30144 (divide fos)
now for preload force, Fb = (1-c) fc= 10048lbs
and it is divide by 5 bolts equally henc e fb= 2009.6lbs answer
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