(preload). The
Q: 22. The smaller of two concentric helical springs is made of 22 mm diameter steel spring and has an…
A:
Q: A helical spring is used for a spring loaded safety valve operation. Spring is located on valve seat…
A:
Q: 1.35* Design an air spring using a cylindrical container and a piston to achieve a spring constant…
A: Diameter of air spring is 4.843 inches considering length of spring equals to diameter of piston…
Q: A mechanism used in printing machinery consists of a tension spring assembled with a preload of 40…
A: Given Data : weight Wi = 40 N mean diameter of coil D = 32mm spring index C = D/d = 8 so, wire…
Q: A compression spring is needed to fit within a 1-in diameter hole. For clearance, the outside…
A:
Q: 2. A spring with 12 active coils and a spring index of 9 supports a static load of 50 lbf with a…
A: Given Number of active coils N=12Spring index, C=9Static land , F=50 lbfDeflection ,δ=0.5 in
Q: A spring made from music wire ASTM 228 steel has the following data: Free length=1.75” Outside…
A:
Q: A hard-drawn steel wire extension spring has a spring index Of 7.5, hook radii of r 0.106 in and r2…
A: Spring is an elastic energy storage object. Springs usually consist of spring steel. There are many…
Q: For plain titanium helical compressive springs, the critical length is a) T D 2 (E-G) 1+2v %3D 2G+ E…
A:
Q: A typical compound helical spring consists of two coaxial closed coil spring having the following…
A:
Q: (7) A rod of 0.12in diameter is coiled into a tension spring of 20 effective coils with a mean…
A: Disclaimer: “Since you have posted a question with multiple sub-parts, we will solve the first three…
Q: An 18 coils helical spring having a load of 100kg. The modulus of elasticity in shear of spring is…
A: Given:n=18m=100 kgG=96.62 GPaD=9.256 cmd=9.525 mm
Q: A helical extension spring is made of 1/8-in music wire A228 (E 28.5 Mps G = 11.75 Mpsi, Sut = 271…
A: To calculate the maximum load the spring can withstand, we must calculate the maximum shear stress…
Q: A spring made from music wire ASTM 228 steel has the following data: Free length=1.75" Outside…
A: INTRODUCTION: Compression springs are coil springs that withstand axial compression. Compression…
Q: A spring made from music wire ASTM 228 steel has the following data: Free length=1.75" Wire…
A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked .…
Q: When three springs are in series having stiffness 30 N/m, 20 N/m and 12 N/m, the equivalent…
A: Given, Stiffness of three springs arranged in series: k1 = 30 N/m k2 = 20 N/m k3 = 12 N/m
Q: Question 1 A helical compression spring is made of hard-drawn spring steel wire 2 mm in diameter and…
A:
Q: A spring with squared and ground ends is used for a load and deflection of 1.2 kN and 20 mm,…
A:
Q: A semi-elliptical leaf spring fully graduated which is made of stee; has a thickness of 10 m number…
A: t=10mmn(no.of leaf)=6Wspring=65mmWband=140mmE=200,000MPaσ=360MPa To-Find:- Deflection of leaf spring
Q: 1 Design a helical spring for a spring loaded safety valve for the following conditions: = 1 N/mm?…
A:
Q: 1. Design a compression helical spring to carry a load of 500 N with a deflection of 25 mm. The…
A:
Q: Design a helical compression spring for a maximum load of 1000 N and deflection of 25mm taking…
A:
Q: Q2: The extension spring shown in the figure has full-twisted loop ends. The material is AISI…
A: Given Number of coil = 82 Preloading = 18 lbf D= 1.5 – 0.162 = 1.338 in d = 0.162 in To find Closed…
Q: (5) A gas engine valve spring is loaded to 35kg, when the valve is closed & 52kg, hen the valve is…
A:
Q: he smaller of two concentric spring is made of 22mm diameter steel & has an outside diameter of 00mm…
A:
Q: A helical compression spring is to be used for a maximum load of 1.5 kN using the spring index of 8.…
A:
Q: (9) A Mercedes Benz gas engine valve spring should not exceed to a cylindrical space of 134-in in…
A:
Q: A mechanism used in a punchingmachinery consists of a tension spring assembled with a preload of 30…
A: GIven DataW=30Nd=2mmC=Dd=7n=10τ=780 N/mm2G=80kN/mm2
Q: 1. Find the effective stiffness (ke) of the spring system shown below. m -WW.
A:
Q: In a compound helical spring, the inner spring is arranged within and concentri outer one but is 10…
A:
Q: "In the Hook's law experiment and according to the relation 7 = 4T" -M, this means that the used…
A:
Q: Question 1 In this section, attention is directed to closely coiled standard helical tension and…
A: Note: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts…
Q: spring is to be inserted with an initial compression to produce a force equal to 125 N between the…
A:
Q: A spring with 12 active coils and a spring index of 9 supports a static loac of 220 N with a…
A:
Q: Q2 / A shaft transmitting 15kW at 200r.p.m. are supported by two bearings placed 1 m apart. A 600 mm…
A: Given: The power transmitting by the shaft, P = 15 kWThe distance between bearings, L = 1 m The…
Q: A length of mm diamet steël wirë is coile a close coiled-helical spring having 10 coils c mm mean…
A: Given Data⇒ Diameter of steel wire (d)=10 mm Number of coils (n1)=10 coils Mean diameter (D1)=75 mm…
Q: A helical compression spring is wound using 4 mm-diameter Chrome-vanadium wire. The spring has an…
A: According to the question, diameter of wire, d=4mm outside diameter of spring, Do=28mm no. of active…
Q: 28. A close-coiled helical spring has stiffness of 10 N/mm. Its length when full ompressed with…
A:
Q: A 2.5 cm x 7.5 cm steel beam with a length of 61 cm is subjected to a reversed load of 17.8 kN at…
A:
Q: 01: A hollow steel tube (1) with an outside diameter of 2.75 in. and a wall thickness of 0.25 in, is…
A: Solution: Force acting at A can be found by, FA-34+18-25=0FA=-41kips Free body diagram of each…
Q: . Inside a helical sping of circulal cros section 20 mm. in dianeter. another spring is placed…
A: Helical springs are formed of wire that has been coiled into a helix shape and is designed to handle…
Q: The inner spring of a compound helical spring is arranged within and concentric with the outer one…
A:
Q: S3) Investigate the following squared-and-ground-ended helical compression spring to see if they are…
A: Given: Material: A228 Music wire, Wire diameter, d=2 mm, Outer diameter (OD), do=10 mm, Free…
Q: A hard-drawn steel wire extension spring has a spring index Of 7.5, hook radii of r = 0.106 in and…
A:
Q: 2) The extension spring shown in figure has full-twisted loop ends. The material is BS 5216 Grade 2.…
A: A Spring system is a system in which the mass in the system is concentrated on the spring. The…
Q: An 18 coils helical spring having a load of 100kg. The modulus of elasticity in shear of spring is…
A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked .…
Q: In a compound helical spring, the inner spring is concentric with the outer spring, but is 9 mm…
A:
Q: A helical compression spring having 14 active coils is close coiled. It has a spring stiffness of…
A:
Q: 5. It is desired to design a valve spring of I.C. engine for the following details: (a) Spring load…
A: Spring are elastic members which distort under load and regain their original shape when the load is…
An extension spring is made of 2 mm music wire A228 (E = 196.5 GPa, G = 81.0 GPa). The spring body has 6 coils and it is close-wound with an initial load (preload). The spring has side hooks of radii r1 = 5 mm and r2 = 5 mm. The outer diameter is 12 mm.
1) Determine the free length Lo in mm.
2)Based on the maximum preload stress, determine the maximum load (Fi) in N
3) Estimate the spring rate (k) in N/mm
4)Determine the load F (in N) that would cause permanent deformation.
Step by step
Solved in 2 steps
- A spring with 12 active coils and a spring index of 9 supports a static load of 220 N with a deflection of 120 mm. The shear modulus of the spring material is 83 GPa. Working stress is 63 ksi, G = 10,800 ksi. 1. What is the theoretical wire diameter? 2. Determine the number of active coils.(5) A gas engine valve spring is loaded to 35kgf when the valve is closed & 52kgf hen the valve is open. The valve lift is 8mm. The outside diameter is to be from 38mm~45mm, & the permissible stress is 413N/mm2 . Determine: (a) the wire & outside diameter; (b) the number of effective coils; (c) the free length when it is squared & ground.In a compound helical spring, the inner spring is concentric with the outer spring, but is 9 mm shorter. The outer spring has ten coils of mean diameter 24 mm, and the wire diameter is 3 mm. Find the stiffness of the inner spring if an axial load of 150 N causes the outer spring to compress 18 mm. If the mean coil diameter for the inner spring is 15.94 mm, find the wire diameter of the inner spring when it has eight coils. Both the springs are made of the same material having G = 77 GPa.
- 5.1 Determine the spring constant of the spring arrangement if all springs have the same spring constant. 5.2 In a compound helical spring, the inner spring is concentric with the outer spring, but is 9 mm shorter. The outer spring has ten coils of mean diameter 24 mm, and the wire diameter is 3 mm. Find the stiffness of the inner spring if an axial load of 150 N causes the outer spring to compress 18 mm. If the mean coil diameter for the inner spring is 15.94 mm, find the wire diameter of the inner spring when it has eight coils. Both the springs are made of the same material having G = 77 GPa.A spring with squared and ground ends is used for a load and deflection of 1.2 kN and 20 mm, respectively, with a spring index of 4. The wire diameter is 6 mm and the modulus of rigidity is 84 GPa. Which of the following is the active number of turns of the spring?A spring has an unstretched length of 600 mm. If it was stretched by 400 mm, the work done is 800 Joules. What is the stiffness of the spring? A) 100 N/m B) 10 KN/m C) 1000 N/m D) 1 KN/m
- A helical compression spring is required to provide a minimum force of 150 lb at installation and have a working deflection of 1 in. The spring rate is 75 lb/in. The coil must fit in a 2.1-in-dia hole with 0.1 in total clearance. Use 0.25-in diameter unpeened music wire and squared/ground ends. Use a 15% clash allowance, shear modulus G = 11.5 Mpsi, and weight density γ = 0.285 lb/in3. Assume Sys = 0.6Sut. Part A Find the shear stress at the initial deflection. Express your answer in pounds per square inch to three significant figures. τiτi = Part B Find the mean stress. Express your answer in pounds per square inch to three significant figures. Part C Find the alternating stress in the coil. Express your answer in pounds per square inch to three significant figures. Part D Find the fatigue safety factor for infinite life in shear. Express your answer using three significant figures.…A spring sustains 200 ft-lb of energy with a deflection of 3’’. Assume that the mean coil diameter is 7 times the wire diameter and that the allowable stress is 100ksi. Determine the wire diameter.A helical compression spring is to be used for a maximum load of 1.5 kN using the spring index of 8. The maximum permissible shear stress for the spring wire is 400 MPa. Which of the following is the wire diameter of the spring to be used?
- Two coaxial closed coil springs make up a standard compound helical spring. When both springs are unloaded, they are not of equal length. If each spring's working stress is to be the same. The wire material has an 80 GPa modulus of rigidity. Find the diameter of steel wire for inner spring and stiffness of inner spring. Also find the stiffness of the compound spring. Outer spring a: Mean coil diameter = 100 mm No. of turns = 15 Wire diameter = 12.5 mm Inner spring b: mean coil diameter = 75 mm No. of turns = 20A mechanism used in printing machinery consists of a tension spring assembled with a preload of 40 N. The mean diameter of the coilis 32 mm with a spring index of 8. The spring has 18 active coils. The spring wire is hard drawn and oil tempered having the following material properties: a.Design shear stress = 700 MPb b. .Modulus of rigidity = 80 kN/mm2 Identify (a) the initial torsional shear stress in the wire, (b) the spring rate, and (c) the force to cause the body of the spring to reach its yield strength.The inner spring of a compound helical spring is arranged within and concentric with the outer one and is shorter by 9 mm. The outer spring has 10 coils with a mean diameter of 24 mm and a wire diameter of 3 mm. (a) Determine the stiffness of the inner spring when an axial load of 162 N causes the outer spring to compress by 16 mm. If the radial clearance between the springs is 1.5 mm and the inner spring has 8 coils, find its wire diameter. (c) Disregarding the effect of curvature, find the maximum shear stress in each of the spring. Given G = 78 GPa.