Accession Number:

ADA193317

Title:

Vibration Control of Large Structures.

Descriptive Note:

Final rept. 1 Jan 86-31 Dec 87,

Corporate Author:

EUROPEAN NUCLEAR ENERGY AGENCY PARIS (FRANCE)

Personal Author(s):

• Pilkev, Walter D.

Report Date:

1988-03-01

Pagination or Media Count:

46.0

Abstract:

This is a study of some fundamental aspects of the structural dynamics and vibration control of large structures. One focus is the development of a limiting performance formulation with minimum settling time which can accept multiple design objectives efficiently. This new formulation is intended to meet the need of rather comprehensive design objectives for the control of large space structures. Another objective of the study is to develop a systematic way of designing a control system based on the limiting performance characteristics. An indirect synthesis method is proposed. It is shown that closed loop control laws can be based on the optimal response trajectories in the time domain. The method is successfully applied to the control of proof-mass actuators. Keywords Damping Vibration controls Feedback control laws Optimal closed loop eigenvalues.

Descriptors:

• *DAMPING
• *STRUCTURES
• *VIBRATION
• CLOSED LOOP SYSTEMS
• CONTROL
• CONTROL SYSTEMS
• CONTROL THEORY
• DYNAMICS
• EIGENVALUES
• FEEDBACK
• FORMULATIONS
• LIMITATIONS
• OPTIMIZATION
• RESPONSE
• SPACECRAFT
• STRUCTURAL PROPERTIES
• SYNTHESIS
• TIME DOMAIN
• TRAJECTORIES

Subject Categories:

• Structural Engineering and Building Technology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE