Stress Analysis of Navy VLF Antenna Insulators.
Final rept. Jul 74-Jun 75,
CIVIL ENGINEERING LAB (NAVY) PORT HUENEME CALIF
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The stresses in high-voltage porcelain insulators that support as well as insulate Navy VLF communication antenna towers up to 1,500 feet 460 meters in height were photoelastically studied. These insulators have been plagued with structural and electrical problems since installation. Therefore, the Navy has begun a progrm to install insulators entailing new design configurations. The objective of this stress analysis program was 1 to analyze the old insulators using photoelastic coatings applied before removal of the tower load in an attempt to correlate the electrical problems with structural weaknesses, and 2 to predict the structural behavior of the new insulator configurations using three-dimensional photoelasticity with finite element theory comparison. The insulator problems, modeling techiques, as well as stress behavior of the structural models, are given. Author
- Electrical and Electronic Equipment
- Radio Communications