Exercise Device

Problem Statement ,[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

Problem Statement (Redefined) ,[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

Market Research Peak Performance Engineering Product Type Retail Sales Percentage of Sales Aerobic Riders $25,000,000 0.66% Aerobic Steps $5,000,000 0.13% Cross-Country Ski Machines $50,000,000 1.34% Elliptical Trainers $600,000,000 16.04% Free Weights $130,000,000 3.48% Home Gyms $540,000,000 14.44% Rowing Machines $5,000,000 0.13% Stair-Climbing Machines $180,000,000 4.81% Stationary Exercise Bicycles $360,000,000 9.63% Treadmills $1,650,000,000 44.12% Weight Benches $195,000,000 5.21% Total $3,740,000,000 100%

Market Research Peak Performance Engineering

Customer Requirements Peak Performance Engineering HOQ

Engineering Requirements Peak Performance Engineering HOQ

Operational Description Peak Performance Engineering

Individual Parts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

Individual Parts ,[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

Individual Parts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

Performance Analysis ,[object Object],[object Object],[object Object],[object Object],[object Object]

Piston-Cylinder Model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Peak Performance Engineering Assembly

Parameter Variation Peak Performance Engineering

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

Comparison Benchmarks ,[object Object],[object Object],[object Object],Peak Performance Engineering

Pulley System Model F F F mg ,[object Object],[object Object],[object Object],Peak Performance Engineering

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

Assembly Efficiency ,[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

First DFA Worksheet 46 0 16 10 12 8 Peak Performance Engineering

DFA Evaluation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

36 12 66 2 0 16 Second DFA Worksheet Peak Performance Engineering

Assembly Efficiency ,[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

Economic Analysis ,[object Object],[object Object],Peak Performance Engineering

Other Calculations ,[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],Peak Performance Engineering

Exercise Device

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