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Q2. Design a helical extension spring using music wire to exert a force of 7.75 lb when the lengt...
design a helical extention
Design a helical extension spring for average service using stainless steel wire, ASTM A313, type 302, to exert a maximum force of 162 lb at a length of 10.80 in. The spring rate should be 38.0 lb/in. The outside diameter should be approximately 1.75 in.
2. A helical compression spring is to be designed as shown in Fig Q2. The spring is required to exert a force of...
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...
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,...
1) [60 pts] Helical Compression Spring A helical compression spring is wound using music wire of...
1) [60 pts] Helical Compression Spring A helical compression spring is wound using music wire of diameter, d, 2.64 mm. The spring has an outside diameter, OD, of 33 mm with plain ground ends and 14 coils. a) Estimate the spring rate. The spring rate is N/mm. b) What is the force needed to compress this spring to closure assuming that the spring will reach its shear strength at its solid length? The force needed to compress this spring to...
2. A helical compression spring is to be designed as shown in Fig Q2. The spring...
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,...
design a helical torsion
Design a helical torsion spring for severe service using stainless steel wire, ASTM A313. type 302, to exert a torque of 12.0 Ib in after a deflection of 270° from the free condition. The outside diameter of the coil should be no more than 1.250 in. Specify the diameter of a rod on which to mount the spring.
Problem: A helical compression spring is made with music wire with wire diameter of 5 mm,...
Problem: A helical compression spring is made with music wire with wire diameter of 5 mm, mean coil diameter of 51 mm, a total of 12 coils, a free length of 127 mm, with squared ends. (a) Find the solid length. (b) Find the force necessary to deflect the spring to its solid length.
Design an infinite-life helical coil extension spring with full end loops and generous loop-bend radii for...
Design an infinite-life helical coil extension spring with full end loops and generous loop-bend radii for a minimum load of 9 lbf and a maximum load of 18 lbf, with an accompanying stretch of in. The spring is for food-service equipment and must be stainless steel. The outside diameter of the coil cannot exceed 1 in, and the free length cannot exceed 21 in. Using a fatigue design factor of nf 2, complete the design. Use the Gerber criterion with...
Design a compression spring with an outside diameter of 11.00 inches from round type 302 stainles...
Design a compression spring with an outside diameter of 11.00 inches from round type 302 stainless-steel wire to operate a plate dispenser in a cafeteria. When fully loaded, the spring is to be compressed 45 inches below the stop under a load of 80 lb, and when empty the spring should exert a force of 0.50 lb against the stop. The ends of the spring are closed. Specify the wire diameter, the number of active turns, the total number of...
A helical extension spring has an end similar to that shown in Figure 1. The important...
A helical extension spring has an end similar to that shown in Figure 1. The important information for the springs ends are: The wire gauge is US steel #19. The mean diameter of the spring is Dm 0.28 inches. · The mean diameter of the end loop is R1 =0.25 inches The mean radius of the bend from the coil to the end loop is R2 0.094 inches. 1. What are the expected stresses at points A and B for...
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 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,...
1) [60 pts] Helical Compression Spring A helical compression spring is wound using music wire of diameter, d, 2.64 mm. The spring has an outside diameter, OD, of 33 mm with plain ground ends and 14 coils. a) Estimate the spring rate. The spring rate is N/mm. b) What is the force needed to compress this spring to closure assuming that the spring will reach its shear strength at its solid length? The force needed to compress this spring to...
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,...
Problem: A helical compression spring is made with music wire with wire diameter of 5 mm, mean coil diameter of 51 mm, a total of 12 coils, a free length of 127 mm, with squared ends. (a) Find the solid length. (b) Find the force necessary to deflect the spring to its solid length.
Design an infinite-life helical coil extension spring with full end loops and generous loop-bend radii for a minimum load of 9 lbf and a maximum load of 18 lbf, with an accompanying stretch of in. The spring is for food-service equipment and must be stainless steel. The outside diameter of the coil cannot exceed 1 in, and the free length cannot exceed 21 in. Using a fatigue design factor of nf 2, complete the design. Use the Gerber criterion with...
Design a compression spring with an outside diameter of 11.00 inches from round type 302 stainless-steel wire to operate a plate dispenser in a cafeteria. When fully loaded, the spring is to be compressed 45 inches below the stop under a load of 80 lb, and when empty the spring should exert a force of 0.50 lb against the stop. The ends of the spring are closed. Specify the wire diameter, the number of active turns, the total number of...
A helical extension spring has an end similar to that shown in Figure 1. The important information for the springs ends are: The wire gauge is US steel #19. The mean diameter of the spring is Dm 0.28 inches. · The mean diameter of the end loop is R1 =0.25 inches The mean radius of the bend from the coil to the end loop is R2 0.094 inches. 1. What are the expected stresses at points A and B for...
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