Modal testing and analysis of NOVA laser structures
NOVA, currently the world's most powerful laser system, is an ongoing project at the Lawrence Livermore National Laboratory in California. The project seeks to develop a feasible method of achieving controlled fusion reaction, initiated by multiple laser beams targeted on a tiny fuel pellet. The NOVA system consists of several large steel framed structures, the largest of which is the Target Chamber Tower. In conjunction with design engineers, the tower was first modelled and analyzed by sophisticated finite element techniques. A modal test was then conducted on the tower structure to evaluate its vibrational characteristics and seismic integrity as well as for general comparison to the finite element results. This paper will discuss the procedure used in the experimental modal analysis and the results obtained from that test.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6116660
- Report Number(s):
- UCRL-90848; CONF-850118-4; ON: DE84017569
- Resource Relation:
- Conference: 3. international modal analysis conference, Orlando, FL, USA, 28 Jan 1985; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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