3. The free length of the plain ends spring is equal to (where: Na = the number of active coils, P = pitch, Dw = the wire diameter) a. P*Na + Dw b. P (Na+1) c. P*Na + 3Dw d. P*N₂ + 2Dw

3. The free length of the plain ends spring is equal to (where: Na = the number of active coils, P = pitch, Dw = the wire diameter) a. PNa + Dw b. P (Na+1) c. PNa + 3Dw d. P*N₂ + 2Dw

Automotive Technology: A Systems Approach (MindTap Course List)

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter46: Suspension Systems

Section: Chapter Questions

Problem 3RQ: What are two reasons for using an air spring?

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Introduction to Engineering Design Process

The engineering design process is a set of steps that engineers follow to come up with a solution to a particular problem. The solution to the problem involves the designing of a product that can accomplish a certain task and can qualify certain criteria. The process of designing is completely different from that of the scientific method, that you may be familiar with. If the project utilizes the observations, and the experiments then the engineering design process must be followed. The diagram shows the steps of the engineering design process, and the table below describes each step in more detail:

Question

mechanical design

3. The free length of the plain ends spring is equal to (where: Na = the number of active
coils, P = pitch, Dw = the wire diameter)
a. P*Na + Dw
b. P (Na + 1)
c. P*Na + 3Dw
d. P*Na + 2Dw

Branch of science that deals with the stationary and moving bodies under the influence of forces.

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