A motor vehicle of mass 1000 kg has road wheels of 600 mm rolling diameter. The total moment of inertia of all four road wheels together with the half shafts is 10 kgm2 , while that of the engine and clutch is 1 kg-m2 . The engine torque is 150 N-m, the transmission efficiency is 90 per cent and the tractive resistance is constant at 500 N. Determine 1. Gear ratio between the engine and the road wheels to give maximum acceleration on an upgrade of 1 in 20, and 2. The value of this maximum acceleration.

A motor vehicle of mass 1000 kg has road wheels of 600 mm rolling diameter. The total moment of inertia of all four road wheels together with the half shafts is 10 kgm2 , while that of the engine and clutch is 1 kg-m2 . The engine torque is 150 N-m, the transmission efficiency is 90 per cent and the tractive resistance is constant at 500 N. Determine 1. Gear ratio between the engine and the road wheels to give maximum acceleration on an upgrade of 1 in 20, and 2. The value of this maximum acceleration.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.57P: The square-threaded screw with a pitch of 10 mm and a mean radius of 18 mm drives a gear that has a...

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