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A QUADRATIC PROGRAMMING APPROACH TO THE DESIGN OF ACTIVE–PASSIVE VIBRATION ISOLATION SYSTEMS

✍ Scribed by D.J. Leo; D.J. Inman

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
154 KB
Volume
220
Category
Article
ISSN
0022-460X

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✦ Synopsis

A quadratic programming algorithm is presented for studying the design tradeoffs of active-passive vibration isolation systems. The novelty of the technique is that the optimal control problem is posed as a quadratic optimization with linear constraints. The quadratic cost function represents the mean square response of the payload acceleration and isolator stroke, and the linear constraints represent asymptotic tracking requirements and peak response constraints. Posing the problem as a quadratic optimization guarantees that a global optimal solution can be found if one exists, and the existence of an optimal solution guarantees that the vibration isolation system satisfies the specified design constraints. The utility of the technique is demonstrated on a comparison of passive vibration isolation and active-passive vibration isolation utilizing relative displacement feedback.

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