Motorcycle Dynamics: Second Edition by Vittore Cossalter

Author:Vittore Cossalter [Cossalter, Vittore]
Language: eng
Format: epub
ISBN: 9781447532767
Publisher: Lulu.com
Published: 2011-11-06T16:00:00+00:00

Fig. 5-31 Modes of vibration in the plane.

In conclusion, because of the road irregularities, the motorcycle oscillates with a motion that is a combination of two vibration modes; i.e., the motorcycle oscillates vertically and pitches at the same time.

Example 10

Consider a motorcycle with the following characteristics:

• wheelbase: p = 1.4 m;

• distance from the center of gravity to the rear wheel : b = 0.7 m;

• sprung mass m = 200 kg;

• pitch moment of inertia:

• reduced stiffness of the front suspension: kf = 15 kN/m;

• reduced stiffness of the rear suspension: kr = 24 kN/m;

• radial stiffness of the tires:

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