A helical compression spring with squared and ground ends is made of music wire. It is to have a spring rate of 2,400 N/m. The force corresponding to a solid length is 120 N. The spring index is set to be 10. At closure use a design factor of 1.2 guarding against yielding. For static loading, determine the wire diameter, the mean coil diameter, the number of coils, the free and solid lengths of the spring, and show whether buckling may occur.
A helical compression spring with squared and ground ends is made of music wire. It is to have a spring rate of 2,400 N/m. The force corresponding to a solid length is 120 N. The spring index is set to be 10. At closure use a design factor of 1.2 guarding against yielding. For static loading, determine the wire diameter, the mean coil diameter, the number of coils, the free and solid lengths of the spring, and show whether buckling may occur.
Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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![3. A helical compression spring with squared and ground ends is made of music wire. It is to
have a spring rate of 2,400 N/m. The force corresponding to a solid length is 120 N. The
spring index is set to be 10. At closure use a design factor of 1.2 guarding against yielding.
For static loading, determine the wire diameter, the mean coil diameter, the number of coils,
the free and solid lengths of the spring, and show whether buckling may occur.
The helical spring of Problem 3 is subjected to a fluctuating load varying between 20 N and
100 N in service. Estimate the factor of safety guarding against fatigue-failure using a
torsional Goodman fatigue criterion with Zimmerli data.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F52282ef7-9628-4f3c-a0da-696ef43c4b5a%2Ffb88175b-7b79-4d8c-8623-b9aec4805a0b%2F243icpl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. A helical compression spring with squared and ground ends is made of music wire. It is to
have a spring rate of 2,400 N/m. The force corresponding to a solid length is 120 N. The
spring index is set to be 10. At closure use a design factor of 1.2 guarding against yielding.
For static loading, determine the wire diameter, the mean coil diameter, the number of coils,
the free and solid lengths of the spring, and show whether buckling may occur.
The helical spring of Problem 3 is subjected to a fluctuating load varying between 20 N and
100 N in service. Estimate the factor of safety guarding against fatigue-failure using a
torsional Goodman fatigue criterion with Zimmerli data.
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