Influence of Afterburner Coated with Absorbing Material on Radar Scattering Characteristics of Engine Exhaust System
In order to improve the backward-facing radar stealth capability of the engine exhaust system, five coating schemes for afterburner, which is radar wave strong scattering source, are formulated. The influence of afterburner coating absorbing materials on the horizontal polarization and vertical pola...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Aero Weaponry
2023-12-01
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| Series: | Hangkong bingqi |
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| Online Access: | https://www.aeroweaponry.avic.com/fileup/1673-5048/PDF/2023-00052.pdf |
| _version_ | 1797279330182627328 |
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| author | Chen Hanze, Li Zhongsheng, Deng Hongwei, Yang Shengnan, Wang Xu, Wang Qun |
| author_facet | Chen Hanze, Li Zhongsheng, Deng Hongwei, Yang Shengnan, Wang Xu, Wang Qun |
| author_sort | Chen Hanze, Li Zhongsheng, Deng Hongwei, Yang Shengnan, Wang Xu, Wang Qun |
| collection | DOAJ |
| description | In order to improve the backward-facing radar stealth capability of the engine exhaust system, five coating schemes for afterburner, which is radar wave strong scattering source, are formulated. The influence of afterburner coating absorbing materials on the horizontal polarization and vertical polarization RCS distribution pattern of the exhaust system in the range of -30°~+30° azimuth of the typical frequency point in the S-band and X-band is analyzed by using the shooting and bouncing rays, also SAR imaging of typical frequency points in the X-band at an azimuth angle of 0° is simulated.The results show that the distribution of strong scattering sources in S-band and X-band is basically the same, and the influence of different coating schemes of absorbing materials on the RCS reduction effect of two bands is similar. The flame stabilizer is the strongest scattering source of radar characteristic signal, and coating it with radar absorbing materials has the greatest benefit on reducing the radar characteristic signal of the exhaust system. Coating absorbing materials in the four parts of afterburner inner cone, flame stabilizer, lobe mixer and afterburner cylinder is the best absorbing material coating scheme for the reduction effect of RCS in the two wave bands. The average RCS reduction effect of horizontal polarization and vertical polarization in S band is 92.3% and 92.0%, and the average RCS reduction effect of horizontal polarization and vertical polarization in X-band is 90.2% and 88.4%. |
| first_indexed | 2024-03-07T16:23:45Z |
| format | Article |
| id | doaj.art-7cd5f5252db94aefbec4027f12b03da0 |
| institution | Directory Open Access Journal |
| issn | 1673-5048 |
| language | zho |
| last_indexed | 2024-03-07T16:23:45Z |
| publishDate | 2023-12-01 |
| publisher | Editorial Office of Aero Weaponry |
| record_format | Article |
| series | Hangkong bingqi |
| spelling | doaj.art-7cd5f5252db94aefbec4027f12b03da02024-03-04T02:44:30ZzhoEditorial Office of Aero WeaponryHangkong bingqi1673-50482023-12-01306899510.12132/ISSN.1673-5048.2023.0052Influence of Afterburner Coated with Absorbing Material on Radar Scattering Characteristics of Engine Exhaust SystemChen Hanze, Li Zhongsheng, Deng Hongwei, Yang Shengnan, Wang Xu, Wang Qun01. AECC Shenyang Engine Research Institute, Shenyang 110015, China;2. Second Military Representative Office of Air Force Equipment Department in Shenyang Area, Shenyang 110043, ChinaIn order to improve the backward-facing radar stealth capability of the engine exhaust system, five coating schemes for afterburner, which is radar wave strong scattering source, are formulated. The influence of afterburner coating absorbing materials on the horizontal polarization and vertical polarization RCS distribution pattern of the exhaust system in the range of -30°~+30° azimuth of the typical frequency point in the S-band and X-band is analyzed by using the shooting and bouncing rays, also SAR imaging of typical frequency points in the X-band at an azimuth angle of 0° is simulated.The results show that the distribution of strong scattering sources in S-band and X-band is basically the same, and the influence of different coating schemes of absorbing materials on the RCS reduction effect of two bands is similar. The flame stabilizer is the strongest scattering source of radar characteristic signal, and coating it with radar absorbing materials has the greatest benefit on reducing the radar characteristic signal of the exhaust system. Coating absorbing materials in the four parts of afterburner inner cone, flame stabilizer, lobe mixer and afterburner cylinder is the best absorbing material coating scheme for the reduction effect of RCS in the two wave bands. The average RCS reduction effect of horizontal polarization and vertical polarization in S band is 92.3% and 92.0%, and the average RCS reduction effect of horizontal polarization and vertical polarization in X-band is 90.2% and 88.4%.https://www.aeroweaponry.avic.com/fileup/1673-5048/PDF/2023-00052.pdf|afterburner|exhaust system|absorbing material|radar scattering characteristics|shooting and bouncing rays|engine |
| spellingShingle | Chen Hanze, Li Zhongsheng, Deng Hongwei, Yang Shengnan, Wang Xu, Wang Qun Influence of Afterburner Coated with Absorbing Material on Radar Scattering Characteristics of Engine Exhaust System Hangkong bingqi |afterburner|exhaust system|absorbing material|radar scattering characteristics|shooting and bouncing rays|engine |
| title | Influence of Afterburner Coated with Absorbing Material on Radar Scattering Characteristics of Engine Exhaust System |
| title_full | Influence of Afterburner Coated with Absorbing Material on Radar Scattering Characteristics of Engine Exhaust System |
| title_fullStr | Influence of Afterburner Coated with Absorbing Material on Radar Scattering Characteristics of Engine Exhaust System |
| title_full_unstemmed | Influence of Afterburner Coated with Absorbing Material on Radar Scattering Characteristics of Engine Exhaust System |
| title_short | Influence of Afterburner Coated with Absorbing Material on Radar Scattering Characteristics of Engine Exhaust System |
| title_sort | influence of afterburner coated with absorbing material on radar scattering characteristics of engine exhaust system |
| topic | |afterburner|exhaust system|absorbing material|radar scattering characteristics|shooting and bouncing rays|engine |
| url | https://www.aeroweaponry.avic.com/fileup/1673-5048/PDF/2023-00052.pdf |
| work_keys_str_mv | AT chenhanzelizhongshengdenghongweiyangshengnanwangxuwangqun influenceofafterburnercoatedwithabsorbingmaterialonradarscatteringcharacteristicsofengineexhaustsystem |