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A critical bolted joint in a nuclear power plant requires a specific bolt preload. The access prevents a direct, accurate measurement of the actual bolt preload. It is planned to use a UNF 7/16-20 bolt with a root diameter of 0.3725in. thread angle 30 deg. A test program determines the following values for friction for the specific fastener and application: Threads u= 0.12 Bolt Collar uc= .12. Torque coefficient K=.152
What is the required torque for an initial bolt preload or initial clamping load (P) such that the joint will still have 1000lb final clamping force (Fc) with an external applied load (Fe) of 12000 lb with kc=5kb
Derive a counterpart for the case of plane strain in the xz-plane of the compatibility equation shown in Problem 4.15 for plane stress. How does this plane strain result differs from the compatibility equation for plane stress?
A commercial food waste grinder in which the final shaft rotates at between 40 and 44 rpm is to be designed. The input is from an electric motor running at 850 rpm and delivering 0.50 hp.
Degree of Reaction - Definition of flow coefficient, and the velocity diagram.
A simplified model of a petroleum pump is shown in Fig. 1.99, where the rotary motion of the crank is converted to the reciprocating motion of the piston. Find the equivalent mass, meq of the system at location A.
a small 0.6-lb collar d can slide on portion ab of a rod which is bent as shown. knowing that r 8 in and that the rod
Use solar collector data in Figure 7.19 and NREL hourly solar radiation data that can be found on the Internet.
air enters a compersoor operating at steady state at 1.05 bar 300k with a volumetric flow rate of 12 m3min and exits at
a brick wall 3 m high 7.5 m wide and 200 mm thick has a thermal conductivity of 0.7 wmcelcius. the temperature on the
a transfer machine has 36 stations. the ideal cycle time 1.50 min. frequency of line stops f 0.2 however this is
a beam of square cross section bd20cm is 2 m long and simply supported at both ends. it carries a 100 n point load
the critical heat flux of water at 1 atm is qmax 1258.7 kwm which occurs at ?t 30c. boiling enters the transition
A gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processes: There are no significant changes in kinetic or potential energy.
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