Optimal parameters uncoupling vibration modes of oscillators
Khanh Chau Le, Alexander Pieper
TL;DR
This paper introduces a new optimization method for oscillators with two degrees of freedom, using motion ratios to uncouple vibration modes, with applications in vehicle suspension design.
Contribution
It presents a novel optimization approach that controls spring and damper actions to uncouple vibration modes in two-degree-of-freedom oscillators.
Findings
Maximized potential action of springs uncouples vibration modes.
Method applies to both conservative and dissipative oscillators.
Discusses application to vehicle suspension design.
Abstract
A novel optimization concept for an oscillator with two degrees of freedom is proposed. By using specially defined motion ratios, we control the action of springs and dampers to each degree of freedom of the oscillator. If the potential action of the springs in one period of vibration, used as the payoff function for the conservative oscillator, is maximized, then the optimal motion ratios uncouple vibration modes. The same result holds true for the dissipative oscillator. The application to optimal design of vehicle suspension is discussed.
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Taxonomy
TopicsVibration Control and Rheological Fluids · Mechanical Engineering and Vibrations Research · Vehicle Dynamics and Control Systems