Question: Explain the term: Nipping of spring.

Subject :- Machine Design -I

Topic :- Spring

Difficulty :- Medium

md1(66) • 1.8k views
modified 16 months ago  • written 17 months ago by gravatar for kiran.9870 kiran.987010
  • The stresses in extra full-length leaves are 50% more than the stresses in graduated-length leaves.
  • One of the methods of equalising the stresses in different leaves is to pre-stress the spring.
  • The pre-stressing is achieved by bending the leaves to different radii of curvature, before they are assembled with the centre clip.
  • As shown in Fig, the full-length leaf is given a greater radius of curvature than the adjacent leaf.

Nipping of leaf spring

  • The radius of curvature decreases with shorter leaves. The initial gap C between the extra full-length leaf and the graduated-length leaf before the assembly, is called a ‘nip’. Such pre-stressing, achieved by a difference in radii of curvature, is known as ‘nipping’.
written 16 months ago by gravatar for kiran.9870 kiran.987010
Please log in to add an answer.