This is my team\'s final presentation to our Introduction of Mechanical Engineering Design, Innovation, and Entrepreneurship course at Purdue University. The task was to develop a unique workout device.
24. Assumptions: Pressure inside piston starts at 1 atm, and density is 1.18 kg / m 3 . Dynamic Vacuum seal on piston Constant room temperature Piston/Cylinder Model Peak Performance Engineering h i ≈ 0 d i = 1.32” F = 20lb V i ≈ 0 F = P * A A = π * r 2 r = d i / 2
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27. Basic Calculations: (2 pulley configuration) F x = 0 A x = 0 F y = 2F – mg = 0 F = (mg) / 2 (m)A y = 2F – mg A y = ((2F) / m ) – g Force mg Pulley System Model Peak Performance Engineering