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Unformatted text preview: (iii) Identify all two-force members, three-force members, and/or four-force members. (iv) Draw all the force polygons. Clearly state the scales that you use for your polygons. (v) Determine all the unknown internal reaction forces. Specify the magnitudes and the directions of these forces. (vi) Determine the magnitude and the direction of the external force P acting on link 6 at point D. (vii) Specify whether the two-force members are in tension or in compression. The assumptions are: (i) gravity acts into the paper (i.e., the negative Z-direction); and (ii) the effects of friction in the mechanism can be neglected....
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- Fall '08
- Machine Design