Title

Active Damping of a Cantilever Beam System

Report Number

WL-TR-91-3078 Volume I, p. CAC-1 thru CAC-10

Creator

Vu, H. V.

Husher, S. E.

Zimmerman, D. E.

Corporate Author

California State University, Long Beach

Laboratory

Wright Laboratory

Date

1991

Date Issued

1991-08

Extent

10

Contract

Laboratory Research - No Contract

DoD Project

2401

DoD Task

240104

Identifier

ADA241311

Format

1 online resource

Abstract

The control-structure interaction of a flexible structure, namely a cantilever beam, and a reaction mass actuator (RMA) is investigated. Mathematical model, in the form of differential equations and transfer functions, is obtained. The study is broken into two steps: (1) open loop and (2)
closed loop. Within the open loop part, the RMA is broken into two sub-steps: (a) dead RMA and (b) passive RMA. In the closed loop part, negative feedback of the beam tip velocity is used for active RMA. Transient responses and root loci are given.

Description

The control-structure interaction of a flexible structure, namely a cantilever beam, and a reaction mass actuator (RMA) is investigated. Mathematical model, in the form of differential equations and transfer functions, is obtained. The study is broken into two steps: (1) open loop and (2)
closed loop. Within the open loop part, the RMA is broken into two sub-steps: (a) dead RMA and (b) passive RMA. In the closed loop part, negative feedback of the beam tip velocity is used for active RMA. Transient responses and root loci are given.

Distribution Classification

1

Distribution Conflict

No

DTIC Record Exists

No

Illinois Tech Related

No

Photo Quality

Not Needed

Report Availability

Full text available

Type

article

Is Part Of

Proceedings of Damping '91: 13-15 February 1991 San Diego, California (Pages AAC-1 through DCC-19)