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A stock helical-coil compression spring has a total of 14 coils, both ends squared and ground,...
Astock helical-coll compression spring has a total of 14 colls, both ends squared and ground, a free length of 1.25 in, and an outside coll diameter of 7/16(0438) in giving the number of active colls, N, 12. The material is hard-drawn wire 0.042-inch in diameter and S,259.000 psl. The operating forces are Fin" 1.5 lb and Fax 3.5lb. VODOM 0.438 in N 14 coils 0012 in die 125 intro length Note, choose one or more than one of the following...
A compression spring has 20 coils with squared and ground ends, a free length of 1.25 in. and an outside diameter of 0.281 in. It is made of music wire with a diameter of .035 in. What is the spring rate (k) of the spring? What is the stress in the spring if compressed to solid height?
For a helical compression spring with 20 active coils made from 10 gage, oil-tempered A229 steel wire, use metric units to determine the spring rate and the shear stress at a deflection of 25 mm. The spring index is 5. Is it safe?
2. A helical compression spring is made from No. 8 steel wire and is to carry a 100 lb static load at a deflection of 1 inch. The outside coil diameter of the spring is 0.972 inches. The spring ends are squared. Assume the torsional yield strength of the wire is 80000 psi, and the shear modulus is 11.4 Mpsi, determine (a) The static load corresponding to the yield strength. (b) The deflection that would be caused by the load...
2, A helical compression spring is to be designed to carry a variable load. The load varies from a minimum of F,=4 lbf to a maximum of F, = /8 lbf. The corresponding spring length varies from a maximum of L, 2.5 in to a minimum of L, =1 in. The outside diameter of the spring is Do = 0.638 in; the material is hard-drawn wiree of diameter d = 0.080 in. The free length of the spring is L...
2. A helical compression spring is to be designed as shown in Fig Q2. The spring is required to exert a force of Po-102 N when compressed to a length of lo=44 mm. When its length is 1=76 mm, it must exert a force of P=22 N. The spring will be cycled rapidly, with severe service required. Use ASTM A401 steel wire. The factor of safety, η, need to be larger than 1.5. Starting with a spring index of 9,...
2. A helical compression spring is to be designed as shown in Fig Q2. The spring is required to exert a force of Po-102 N when compressed to a length of lo-44 mm. When its length is I-76 mm, it must exert a force of P-22 N. The spring will be cycled rapidly, with severe service required. Use ASTM A401 steel wire. The factor of safety, η, need to be larger than 1.5. Starting with a spring index of 9,...
2. A helical compression spring is to be designed as shown in Fig Q2. The spring is required to exert a force of Po-102 N when compressed to a length of lo-44 mm. When its length is I-76 mm, it must exert a force of P-22 N. The spring will be cycled rapidly, with severe service required. Use ASTM A401 steel wire. The factor of safety, η, need to be larger than 1.5. Starting with a spring index of 9,...
FOR PROBLEMS 4-6 (SHOW ALL PROCEDURE AND STEPS FOR CREDIT) A helical spring is fabricated using a steel wrapping wire 5/8-inch in diameter around a forming cylinder 5-inch in diameter (mean diameter). The spring cannot exceed a shearing stress of 20 ksi, while compressing 5 inches. Take G 12 x 106 psi PROBLEM 4 (T4A) The spring index is a) 5 b) 8 e) 10 d) None of the above PROBLEM 5 (T4A) If the spring index is 10, the...
1. A closely coiled helical spring made of 15 mm diameter steel wire has 15 coils of 110 mm mean diameter. The spring is subjected to an axial load of 180 N. Calculate the maximum shear stress induced in the spring. Assume modulus of rigidity is 78 GPa. 2. A solid circular bar ABC consists of two segments, as shown in the figure. One segment has diameter d1= 65 mm and length L1 = 1.54 m; the other segment has...