A shock mount constructed as shown in the figure is used to support a delicate instrument The mount consists of an outer steel tube with inside diameter b, a central steel bar of diameter d that supports the load P, and a hollow rubber cylinder (height h) bonded to the tube and bar (a) Obtain a formula for the shear Iuml in the rubber at a radial distance r from the center of the shock mount (b) Obtain a formula for the downward displacement Icirc acute of the central bar due to the load P, assuming that G is the shear modulus of elasticity of the rubber and that the steel tube and bar are rigid Steel tube Steel bar Rubber

Question: A shock mount constructed as shown in the figure is used to support a delicate instrument. The mount consists of an outer steel tube with

A shock mount constructed as shown in the figure is used to support a delicate instrument. The mount consists of an outer steel tube with inside diameter b, a central steel bar of diameter d that supports the load P, and a hollow rubber cylinder (height h) bonded to the tube and bar.
(a) Obtain a formula for the shear Ï„ in the rubber at a radial distance r from the center of the shock mount.
(b) Obtain a formula for the downward displacement Î´ of the central bar due to the load P, assuming that G is the shear modulus of elasticity of the rubber and that the steel tube and bar are rigid.

Steel tube Steel bar Rubber

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