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Springs Design

- Apr 08, 2018 -

Design springs don't miss those important details

The task of the spring design is to determine the diameter d of the spring wire, the number of working rings n, and other geometric dimensions, so that the strength constraints, stiffness constraints, and stability constraints can be met, and further corresponding design criteria (eg, volume, weight, vibration) are required. Stability, etc.) to achieve the best.

The specific design steps are as follows: first select spring material and spring index C according to working conditions and requirements. Since sb is related to d, it is often also assumed in advance that the diameter d of the spring wire. Next, calculate the values of d and n and other corresponding geometric dimensions. If the results do not match the design conditions, the above process should be repeated. Until the solution to satisfy all the constraints is a feasible solution to this problem. In practical problems, feasible solutions are not unique and often require better solutions from multiple feasible solutions.

A cylindrical helical compression spring is designed and the spring profile is circular. Known minimum load Fmin = 200N, maximum load Fmax = 500N, working stroke h = 10mm, spring II type of work, the outer diameter of the spring does not exceed 28mm, and the end is tightly ground.

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