The spring constant of a helical compression spring DOES NOT depend on"O+*13/coil diametermaterial strengtht. number of active turnswire diameter

The spring constant of the spring is called the stiffness of the spring and it shows by symbol 'k',

Answered: The spring constant of a helical…

The spring constant of a helical compression spring DOES NOT depend on ** coil diameter material strength t. number of active turns wire diameter

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

The spring constant of a helical compression spring DOES NOT depend on
"O+*
13/
coil diameter
material strength
t. number of active turns
wire diameter

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Design a helical compression spring to be used in a cam and follower mechanism made of oil tempered carbon steel, is subjected to a load which varies from 416 N to 950 N. The spring index is 6.7 and the design factor of safety is 1.25. If the yield stress in shear is 770 MPa and endurance stress in shear is 350 MPa,find: 1. Size of the spring wire, 2. Diameters of the spring, 3. Number of turns of the spring, and 4. Free length of the spring. The compression of the spring at the maximum load is 30 mm. The modulus of rigidity for the spring material may be taken as 80 kN/mm2.
QUESTION 1 Consider the spring assemblage as shown in Figure 1 with k = 10 N/mm, k₂= 15 N/mm, k3 = 20 N/mm, k4 = 25 N/mm, ks = 30 N/mm and F = 50 N. Determine the: 1) Global stiffness matrix ii) Nodal displacement. iii) Find the reation force at node 1 and 4. 30° www.m Figure 1 2 ww 4 3
Problem A 1) Find the equivalent spring,N/mm 2) Find the force, F KI K5 k k K2 x=10 mim k 00000 0000 k КЗ K4 K6 ....... ...... ...... ...... ........... .. ........
Question#1) Explain hooks law and also write down an equation for stiffness of compression spring.
if the value of spring index is 9 and the mean diameter of the spring is 24 mm, the spring wire diameter d is ** . mm O a. 33.00 O b. 216.00 O c. 1.33 O d. 2.67
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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.…
In-1' 16+29 CHAPTER ENGINEERS MECHANICS STATICS り」 arc ( 24 X(x Sample Problem 6.4.2 JQ) aX9 142 i JA V4 TuS 31 An 800 N-m couple is applied to the flywheel as shown. The coefficient of belt friction is 0.20. The minimum force P required to prevent rotation of the flywheel is applied. 800 N.m dre 2.R 1. Which Tension is larger, TA or TB? Explain 2. What is the angle of contact in radians? 60 3. What is the value of the ratio TA/TB? A B X*ッー Sin=d 6+ミ 2(I+(T Tarc (2) 4)e Eら、1.2 J =3.