The Simulation and Control of Naval Vessel Shaft Frequency Electromagnetic Signature
Shaft frequency electromagnetic signature on submarines that can be easily detected in seawater is produced due to periodic resistance variation of shaft to hull and voltage between shaft and hull. The shaft frequency signal must be controlled in order to make naval vessel safe. The practical results show that passive shaft grounding cant effectively control the signal, especially for high rotation propellers. A mechanical installation was designed and manufactured to simulate axis’s word and a small type of electronic controller was used to control the signals to less than 0.1mV in different shaft speed in laboratory. Based on the data obtained from the simulation equipment, a kind of submarine controller up to 24V/100A was designed, installed and tested with shaft simulation installation. The results demonstrated that the controller can compensate resistance variation of shaft to hull and maintain voltage between shaft and hull less than 1mV. In other word, the grounding resistance via the controller is less than 1.3×10-5. At same tine, a modeling circuit that simulates to cathodic protection routine combined with equipment above was verified the coordination between the controller and rectifier-transform. The results show that the controller can effectively inhibit shaft frequency signal while working together with cathodic protection system.
shaft frequency electromagnetic signature naval vessel ELFE submarines corrosion cathodic protection
Zhou Xianglong Zhao Jingbo Gao Feng Guo Xingwei
Naval Submarine Academy,Qingdao,China Qingdao Technological University,Qingdao,China
国际会议
2011 China Control and Decision Conference(2011中国控制与决策会议 CCDC)
四川绵阳
英文
3599-3603
2011-05-23（万方平台首次上网日期，不代表论文的发表时间）