A 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.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A 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.
A helical compression spring is to exert a force of 8.0 lb when compressed to a length of
1.75 in. At a length of I.25 in, the force must be 12.0 lb. 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.
Transcribed Image Text:A helical compression spring is to exert a force of 8.0 lb when compressed to a length of 1.75 in. At a length of I.25 in, the force must be 12.0 lb. 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.
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