ΣMD: P (600 mm) - W (450 mm)=0 tan = 3 mm 2x(12 mm) P = 0.75 W Since screw is threaded in opposite senses at both A and B, the torque is T=20r P=0.75 ()cot 10.81° W = 0.75 ( 68 N.m 0.012 m x 2 -)cot 10.81° P 11.135 kN 0 = 2.28° stan 0.15 = 8.53° tan¹ = 0+, 0+ &s = 10.81° WQcot10.81° The free-body diagram of the upper member is Required Information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. In the vise shown in the figure, the screw is single-threaded in the upper member; it passes through the lower member and is held by a frictionless washer. The pitch of the screw is 3 mm, its mean radius is 12 mm, and the coefficient of static friction is 0.15. D B M 450 mm 150 mm Determine the magnitude P of the forces exerted by the jaws when M= 74-N-m couple is applied to the screw. Assuming that the screw is single-threaded at both A and B (right-handed thread at A and left-handed thread at B). The value of magnitude Pis 24.22 kN.
In the vise shown in the figure, the screw is single-threaded in the upper member: It passes through the lower member and is held by a frictionless washer. The pitch of the screw is 3 mm, its mean radius is 12 mm. and the coefficient of static friction is 0.15.
Determine the magnitude P of the forces exerted by the jaws when M= 74-N.m couple is applied to the screw. Assuming that the screw is single-threaded at both A and B (right-handed thread at A and left-handed thread at B)
The value of magnitude P is KN?
Note: please consider everything. Refer to the image for more clarity. On occasions, I receive wrong answers!!. Kindly please show the magnitude of P which is the final answer in " KN" in the step by step working out please. Appreciate your time!. Side note, the answer in the image is wrong. This question is very annoying!. And a lot of experts have given me wrong answers!. So I beg to show concise working out!. Also I've attached another image something to help with the question. Please by using the extra information in the extra image. Double check the working out before finalising. Last expert gave me the answer 33.33Kn which is incorrect!.
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