RESEARCH ON MECHANICAL PROPERTIES AND DIAPHRAGM EFFECT OF BLOCK METAL FRAMES RADOME WITH FLEXIBLE SKIN

CAO Weizhong; REN Sijie; XU Xiaochen; ZHANG Qian; CAI Jianguo

doi:10.13204/j.gyjz202002020

Volume 50 Issue 2

Feb. 2020

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CAO Weizhong, REN Sijie, XU Xiaochen, ZHANG Qian, CAI Jianguo. RESEARCH ON MECHANICAL PROPERTIES AND DIAPHRAGM EFFECT OF BLOCK METAL FRAMES RADOME WITH FLEXIBLE SKIN[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(2): 130-136. doi: 10.13204/j.gyjz202002020

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CAO Weizhong, REN Sijie, XU Xiaochen, ZHANG Qian, CAI Jianguo. RESEARCH ON MECHANICAL PROPERTIES AND DIAPHRAGM EFFECT OF BLOCK METAL FRAMES RADOME WITH FLEXIBLE SKIN[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(2): 130-136. doi: 10.13204/j.gyjz202002020

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RESEARCH ON MECHANICAL PROPERTIES AND DIAPHRAGM EFFECT OF BLOCK METAL FRAMES RADOME WITH FLEXIBLE SKIN

doi: 10.13204/j.gyjz202002020

1. The 14 th Research Insitute of CETC, Nanjing 210039, China;
2. Shanghai Highbird Fabric Structure Corporation, Shanghai 201108, China;
3. Southeast University, National Prestress Engineering Research Center, Nanjing 210089, China

Received Date: 2019-10-20

Abstract

Abstract

Radome not only provides independent and closed space for radar to ensure the safe operation of radar, but it also radome provides "transparent" transmitting and receiving electromagnetic window for antenna to ensure normal and reliable operation of radar. Therefore, the research of the mechanical properties of the radome is of great significance to the safety of the radome itself and the safety of its internal radar equipment.Block metal frames radome is a typical single-layer lattice shell structure, based on FEA, the mechanical properties analysis flow of block metal frames radome with flexible skin was elaboratedin in this paper. Taking a metal frames radome which the diameter is 28.5 m as an example, the form-finding, statics, dynamics and stability analysis are carried out. On this basis, the diaphragm effect of flexible skin on the mechanical properties of radome was studied experimentally.The analysis results showed that the radome could meet the requirements of structural stiffness and strength under the most stringent load conditions,and the design was safe and reliable. At the same time, the experimental results showed that the diaphragm effect of the radome was obvious, which could significantly improve the overall bearing capacity of the radome and further improve the safety of the structure of radome.
- block metal frames radome,
- flexible skin,
- mechanical properties,
- stability,
- diaphragm effect

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References(14)

References

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