Background (Massage Gun Design)
New motor and battery are sourced. Design solutions are proposed for two components on the current production percussion massage gun to achieve 10% weight reduction, while meeting product functionality, durability, sizes, packaging, DFM/DFA requirements.
Methods
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Analyzed the system requirements such as the power needed for battery and motor, and the potential abuse use from users.
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Decoded the system requirements into the fundamental physical parameters that governs the design solutions.
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Provided initial design solutions to meet the functionality, size, product packaging, component servicing goals.
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Leveraged CAE analysis such as Optistruct optimization tool and static analysis to study the load path, deformation, and stress to maximize the weight reduction.
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Proposed final detailed design based on CAE validation and followed design rules to meet DFA/DFM constraints.
Engineering Analysis
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Powertrain connecting rod
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Load cases derived from motor and battery specs and the abuse use from customers
Design Solutions
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Powertrain connecting rod
Design Solutions
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PCB back cover
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