Mechanical Impedance Analysis for Lumped Parameter Multi-Degree of Freedom/Multi-Dimensional Systems
Abstract
Theoretical methods are presented for the analytic and experimental determination of mechanical impedance and its associated effects on the dynamic response of linear, multi-degree of freedom/multi-dimensional systems. Impedance matrices are formulated which are useful in describing and predicting the frequency dependent characteristic properties of these systems. The problem of interconnecting subsystems is formulated in terms of composite impedance matrices and interconnection equations, from which critical frequencies (resonances and anti-resonances) and dynamic response of the composite system may be obtained. Analytical and experimental procedures for the evaluation of these matrices are also discussed. To demonstrate the application of some of the procedures, an example problem is solved. Moreover, the results of this study are sufficiently general for extending the approach to many types of distributed system configurations subject to varied excitation phenomena.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1967
- Accession Number
- ADA395541
Entities
People
- Frank J. On
Organizations
- National Aeronautics and Space Administration