projcmclinko

projcmclinko - CAD and Performance Analysis Ryan McLinko...

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CAD and Performance Analysis Ryan McLinko Carolyn O’Brien 01/25/07
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We were initially given the roller assembly, which has not been weight optimized with the exception of the gears, which were optimized much earlier due to the density of steel. We therefore decided to optimize the side bars, side plates, and rollers for weight while maintaining a minimum factor of safety of 2. The rest of this document will be broken down based on component: Belay Side Bar The belay side bar was restrained at the bolt holes connecting it to the rest of the climber. The holes connecting to the U-bolts of the belay system were applied with 123N of force, as the climber would be subjected to by a climber of weight 25kg. Figure 1: Belay Side Bar Forces The resulting factor of safety distribution has a minimum factor of safety of 2.3 and the stress is fairly evenly spaced along the ribs of the bar. Figure 2: Belay Side Bar FOS
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The resulting displacement distribution is as follows, with maximum displacement of 1.5e-3m. Figure 3: Belay Side Bar Displacement The resulting factor of safety and displacement distributions fit the functional requirements and the even displacement of force ensures weight minimization. Cross Side Bar
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This note was uploaded on 11/08/2011 for the course AERO 16.810 taught by Professor Olivierdeweck during the Winter '07 term at MIT.

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projcmclinko - CAD and Performance Analysis Ryan McLinko...

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