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categoryالهندسة الميكانيكية schoolبكالوريوس event_available2026-07-15

السؤال

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SPECIFICATIONS AND REQUIREMENTS A company specialises in the manufacture of gearboxes for industrial applications, such as conveyors, belts, blowers, and generators. The marketing team has determined a need for one of these gearboxes to satisfy the following customer requirements: Power to be delivered Steady-state input speed Steady-state output speed Base mounted with 4 bolts 1.5 kW 1650 rpm 105 + 2 rpm. The gearbox is targeted for uniformly loaded applications. The expected life of the unit is 7 years, which is based on 8 hours per day and 5 days a week. A maximum of 3% failures are allowed over the design life of the unit. The gearbox should transmit the power from the source to the application with as little energy loss as practical, while meeting the speed and torque requirements. The design should be a practical proposal, which among other things, considers how the gears are packaged, facilitating assembly and disassembly for maintenance. As a design engineer, your task is to design the proposed gearbox by analysing force and torque requirements. The core objective is to develop a systematic procedure for gearbox design, showing all the necessary steps and calculations.

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