Vibration Study of Radar Receiver/Transmitter M163 Vulcan Air Defense System.
Abstract
This report describes a laboratory vibration study conducted on the Receiver/Transmitter unit of the M163 Vulcan Air Defense System. Field reports indicated an undesirable amount of vibration in the unit during vehicle operation on paved roads, resulting in excessive maintenance requirements. The laboratory study detemined the equipemnt's critical frequencies likely to be excited by vehicle operation, and the associated mode shapes. The primary vibration problem is identified as insufficient support structure for the microwave chassis. Based on the laboratory test results field damage occuring to the unit mounting hardware does not appear to be a vibration problem. A proposed microwave chassis support bracket was tested in the laboratory and found to increase the natural frequency of the chassis, and to reduce the loosening of components due to vibration. Recommendations are made to incorporate the microwave chassis support bracket in the production unit, and to add unit support brackets if mounting hardware problems continue, (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1976
- Accession Number
- ADA027448
Entities
People
- James H. Wiland
Organizations
- Frankford Arsenal