Vibration absorbers as controllers

This paper considers the design of vibration absorbers for multi degree of freedom vibrating systems. Similarities between absorber design and control problems are pointed out and an approach is presented to solve the absorber design problem by a technique that is similar to loopshaping technique used in control system design. A criterion for selecting the collocated sensor and actuator locations is developed and the approach is extended to design of multiple absorbers. An example is given to illustrate the results.