2. The figure shows a spring chair. The chair weight is 100 N. The spring free-length is 500 mm, mean diameter is 200 mm, wire diameter is 10 mm and number of turns is 12. The spring wire material is Music wire A228 with modulus of rigidity of 82700 MPa. Calculate the initial deflection of the spring under the chair weight. If a child seats on the chair, calculate his weight to bush the spring to the shut height. Calculate the stresses in the spring at that condition. 8FD'N d'G y = 8FD T = K,- 4C + 2 KB = 4C – 3 C = 00000000ood

2. The figure shows a spring chair. The chair weight is 100 N. The spring free-length is 500 mm, mean diameter is 200 mm, wire diameter is 10 mm and number of turns is 12. The spring wire material is Music wire A228 with modulus of rigidity of 82700 MPa. Calculate the initial deflection of the spring under the chair weight. If a child seats on the chair, calculate his weight to bush the spring to the shut height. Calculate the stresses in the spring at that condition. 8FD'N d'G y = 8FD T = K,- 4C + 2 KB = 4C – 3 C = 00000000ood

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.8.10P: A bumping post at the end of a track in a railway yard has a spring constant k = 8.0 MN/m (see...

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