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Tutorial 3 (Automobile Engineering), Exercises of Automobile Engineering

International Islamic CollegeAutomobile Engineering

Tutorial 3 Automobile Engineering

Typology: Exercises

2021/2022

Uploaded on 07/25/2022

muhamad-faredzuan
muhamad-faredzuan 🇲🇾

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Tutorial 3

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Download Tutorial 3 (Automobile Engineering) and more Exercises Automobile Engineering in PDF only on Docsity!

  • Tutorial
3.1 5.2 Tutorial 3 A passenger car weighs 20,02 kN (4500 Ib) and has a wheelbase of 279.4 cm (110 in). The center of gravity is 127 cm (50 in.) behind the front axle. If a pair of radial-ply tires, each of which has a cornering stiffness of 45.88 kN/rad (180 Ib/deg), are installed in the front, and a pair of bias-ply tires, each of which has a cornering stiffness of 33.13 kN/rad (130 Ib/deg), are installed in the rear, determine whether the vehicle is understeer or oversteer. What would happen to the steady-state handling characteristics of the vehicle, if the front and rear tires are interchanged? Also calculate the characteristic or critical speed of the vehicle as appropriate. A sports car weight 9.919 KN (2230 Ib) and has a wheelbase of 2.26 m (7.4 fi). The center of gravity is 1.22 m (4 ft) behind the front axle. The cornering stiffness of each front tire is 58.62 kN/rad (230 Ib/deg) and that of each rear tire is 71.36 kNirad (280 Ib/deg). The steering gear ratio is 20:1. Determine the steady-state yaw velocity gain and lateral acceleration gain of the vehicle in the forward specd range 10 - 160 km/h (6.2 to 99.4 mph).