Vibration & Noise Monitoring of Large Observation Platforms
Abstract
The structural vibration of the cabin of Utrasport helicopter ATI-496 are studied. The dynamic behavior of the cabin is predicted by a Finite Element Model developed using 6-node elements, for simulated according to Kirchoff theory for plates. The natural frequencies of vibration and corresponding mode shapes of the cabin and its door are measured experimentally and used to validate the Finite Element model. The close agreement between experimental results and numerical predictions. The numerical and experimental validations demonstrate the accuracy of the developed model and emphasize its potential extension to investigate the application of smart materials for active control of vibration and noise radiation from hulls of aircrafts.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 15, 1999
- Accession Number
- ADA378823
Entities
People
- Amr M. Baz
Organizations
- University of Maryland