SHIGLEY'S MECH.ENGR...(LL)-PKG.>CUSTOM<
10th Edition
ISBN: 9781260028379
Author: BUDYNAS
Publisher: MCG/CREATE
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 10, Problem 3P
A helical compression spring is wound using 2.5-mm-diameter music wire. The spring has an outside diameter of 31 mm with plain ground ends, and 14 total coils.
- (a) Estimate the spring rate.
- (b) What force is needed to compress this spring to closure?
- (c) What should the free length be to ensure that when the spring is compressed solid the torsional stress does not exceed the yield strength?
- (d) Is there a possibility that the spring might buckle in service?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A close coiled helical spring that is made of a material with a shear modulus of 150 GPa, has a wire diameter of 10 mm, a solid length of 100 mm, and a stiffness of the spring is 15 kN/m. Calculate:(i) The mean diameter of the coils ,(ii) The shear stress induced in the spring wire for an axial deflection of 35 mm, and(iii) The work done extending the spring by 25 mm
A closely coild spring of 20 cm mean diameter is having 25 coils of 2 cm diameter modulus of rigidity of the material is 10^7 N/cm^2. What is the stiffness of the spring?
Calculate the number of coils of a helical spring so that the deflection of the spring may not exceed 1.5 in. under a certain load. The mean diameter of the spring is 2.25 in. and the wire diameter is 0.15 in., with the material having allowable shear stress of 50,000 psi and shear modulus of elasticity of 12 x 10^6.
Chapter 10 Solutions
SHIGLEY'S MECH.ENGR...(LL)-PKG.>CUSTOM<
Ch. 10 - Within the range of recommended values of the...Ch. 10 - It is instructive to examine the question of the...Ch. 10 - A helical compression spring is wound using...Ch. 10 - The spring in Prob. 10-3 is to be used with a...Ch. 10 - A helical compression spring is made with...Ch. 10 - A helical compression spring is to be made of...Ch. 10 - A helical compression spring is made of hard-drawn...Ch. 10 - The spring of Prob. 107 is to be used with a...Ch. 10 - 109 to 1019 Listed in the tables are six springs...Ch. 10 - 109 to 1019 Listed in the tables are six springs...
Ch. 10 - 10-9 to 10-19 Listed in the tables are six springs...Ch. 10 - Prob. 12PCh. 10 - 10-9 to 10-19 Listed in the tables are six springs...Ch. 10 - 10-9 to 10-19 Listed in the tables are six springs...Ch. 10 - 10-9 to 10-19 Listed in the tables are six springs...Ch. 10 - 10-9 to 10-19 Listed in the tables are six springs...Ch. 10 - Prob. 17PCh. 10 - 10-9 to 10-19 Listed in the tables are six springs...Ch. 10 - 10-9 to 10-19 Listed in the tables are six springs...Ch. 10 - Consider the steel spring in the illustration. (a)...Ch. 10 - A static service music wire helical compression...Ch. 10 - Solve Prob. 1021 by iterating with an initial...Ch. 10 - A holding fixture for a workpiece 37.5 mm thick at...Ch. 10 - Solve Prob. 10-23 by iterating with an initial...Ch. 10 - A compression spring is needed to fit over a...Ch. 10 - A compression spring is needed to fit within a...Ch. 10 - A helical compression spring is to be cycled...Ch. 10 - The figure shows a conical compression helical...Ch. 10 - A helical coil compression spring is needed for...Ch. 10 - Solve Prob. 10-30 using the Goodman-Zimmerli...Ch. 10 - Solve Prob. 10-30 using the Sines-Zimmerli...Ch. 10 - Design the spring of Ex. 10-5 using the...Ch. 10 - Solve Prob. 10-33 using the Goodman-Zimmerli...Ch. 10 - A hard-drawn spring steel extension spring is to...Ch. 10 - The extension spring shown in the figure has...Ch. 10 - Design an infinite-life helical coil extension...Ch. 10 - Prove Eq. (10-40). Hint: Using Castigliunos...Ch. 10 - The figure shows a finger exerciser used by...Ch. 10 - The rat trap shown in the figure uses two...Ch. 10 - Prob. 41PCh. 10 - Prob. 42PCh. 10 - Figure 10-13b shows a spring of constant thickness...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A helical spring is made of 10 m diameter steel wire wound on a 100 mm diameter mandrel. If there are 10 active coils what is spring constant Take: C= 100 GPA What force must be applied to the spring to elongate it by 50 mm?arrow_forwardDesign a close coiled helical compression spring for a service load rangingfrom 2500 N to 3000 N. The axial deflection of the spring for the load range is 5 mm. Assume aspring index of 4. The permissible shear stress intensity is 450 MPa and modulus of rigidity,G = 84 kN/mm2.arrow_forwardA square end compression helical spring has an operation load range of 3.5KN to 4.2KN.The deflection for the load range is 8mm and the spring index is 6.if the permissible shear stress and module of rigidity for the material of the spring are 380MPa and 90pa respectively, including the effect of the wire curvature. Design the spring by, determine (A)wire diameter (B) mean coil diameter (C) number of active turns (D)total number of turnsarrow_forward
- A closed coil helical spring is to deflect 1 mm under the axial load of 100 N at shearing of 90 N/mm2. The spring is to be made of round wire having rigidity modulus of 80 X 104 N/mm2. The mean diameter of the spring is to be 10 times the diameter of the wire. Find the diameter and length of the wire necessary to form the sprinarrow_forwardFind the equivalent spring constant of a uniform mild steel rod length of 2.5 m, cross-sectional area of 100 cm2 and Young's modulus of 210 GPa subjected to an axial tensile (or compressive) force F= 500 N.arrow_forwardA helical compression spring is 1o exert a force of 8.0 Ib when compressed 1o a length of 1.75 in. At a length of 1.25 in, the force must be 12.0 Ib. The spring will be installed in a machine that cycles slowly. and approximately 200 000 cycles total are expected. The tem- perature will not exceed 200°F. The spring will be installed in a hole having a diameter of 0.75 in. For this application. specify a suitable material, wire diameter. mean diameter. OD. ID. free length, solid length. number of coils, and type of end condition. Check the stress at the maximum operating load and at the solid length condition. The first of two solution procedures will be shown. The numbered steps can be used as a guide for future problems and as a Kind of algorithm for the spreadsheet approach that follows the manual solution.arrow_forward
- A helical compression spring made of a wire of circular cross-section is subjected to a compressive load. The maximum shear stress induced in the cross-section of the wire is 24 MPa For the same compressive load, if both the wire diameter and the mean coll diameter are doubled the maximum shear stress (in MPa) induced in the cross-section of the wire is...............arrow_forwardA 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?arrow_forwardIn 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.arrow_forward
- Design a close-coiled helical spring of silicon-manganese steel for the valve of an IC engine capable of exerting a net force of 65N when the valve is open and 54N when the valve is closed. The internal and external diameters are governed by space limitations, as it has to fit over bushing of 19 mm outside diameter and go inside a space of 38 mm diameter. The valve lift is 6 mmarrow_forwardA helical compression spring is made of no. 16 music wire. The outside coil diameter of the spring is 1.5 in. The ends are Plain end, ground and there are 13 total turns. (a) Estimate the torsional yield strength of the wire. (b) Estimate the static load corresponding to the yield strength. (c) Estimate the scale of the spring. (d) Estimate the deflection that would be caused by the load in part (b). (e) Estimate the solid length of the spring. ( f ) What length should the spring be to ensure that when it is compressed solid and then released, there will be no permanent change in the free length? (g) Given the length found in part ( f ), is buckling a possibility? (h) What is the pitch of the body coil?arrow_forwardA helical compression spring with square and ground ends has an outside diameter of 14 mm, 20 total coils, a wire diameter of 2 mm, and a free length of 105 mm. Calculate the spring index, the pitch, the solid length, and the shear stress in the wire when the spring is compressed to its solid length.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Mechanical SPRING DESIGN Strategy and Restrictions in Under 15 Minutes!; Author: Less Boring Lectures;https://www.youtube.com/watch?v=dsWQrzfQt3s;License: Standard Youtube License