ﻃﺮاﺣﯽ و ﺳﺎﺧﺖ ﻧﺮم اﻓﺰار ﺷﺒﯿﻪﺳﺎز ﺑﺮﺧﻂ ﻣﺸﺨﺼﻪ جبراﻧﯽ ﺷﻨﺎورﻫﺎي ﻓﺮوﻣﻐﻨﺎﻃﯿﺲ ﺑﺎ اﺳﺘﻔﺎده از ﺣﻠﻘﻪﻫﺎي ﺟﺮﯾﺎن اﻟكترﯾﮑﯽ

Design and Release of Reparative Characteristic Online Simulator of Ferromagnetic Ships Using Electrical Current Loops

ﻳﻜﻲ از روشﻫﺎي ﺗﺸﺨﻴﺺ ﺣﻀﻮر ﺷﻨﺎورﻫﺎي ﺳﻄﺤﻲ و زﻳﺮﺳﻄﺤﻲ، آﺷﻜﺎرﺳﺎزي ﺗﻐﻴﻴﺮات ﻣﻴﺪان ﻣﻐﻨﺎﻃﻴﺴﻲ در ﻣﺤﻴﻂ اﻃـﺮاف ﺷﻨﺎور اﺳﺖ. روش ﻣﻌﻤﻮل ﺑﺮاي ﻛﺎﻫﺶ ﺗﻐﻴﻴﺮات ﻣﻴﺪان ﻣﻐﻨﺎﻃﻴﺴﻲ اﻳﺠﺎدﺷﺪه در اﻃﺮاف ﺷﻨﺎور، اﺳـﺘﻔﺎده از ﻣﺠﻤﻮﻋﺔ ﺣﻠﻘـﻪ ﻫـاي ﺣﺎﻣﻞ ﺟﺮﻳﺎن اﻟﻜﺘﺮﻳﻜﻲ اﺳﺖ. ﺟﺮﻳﺎن اﻟﻜﺘﺮﻳﻜﻲ ﻫﺮ ﻣﺪار ﺑﺴﺘﻪ، ﺑﺎﻳﺪ ﻃﻮري ﺗﻨﻈﻴﻢ ﺷﻮد ﻛﻪ ﻣﻴﺪان ﻣﻐﻨﺎﻃﻴﺴﻲ ﺣﺎﺻـﻞ از ﻣﺠﻤﻮﻋـﺔ ﻣﺪارﻫﺎي اﻟﻜﺘﺮﻳﻜﻲ ﺑﺮاﺑﺮ ﺑﺎ ﻣﻴﺪان ﻣﻐﻨﺎﻃﻴﺴﻲ اﻃﺮاف ﺷﻨﺎور وﻟﻲ در ﺧﻼف ﺟﻬﺖ آن ﺑﺎﺷﺪ. در اﻳﻦ ﺗﺤﻘﻴـﻖ ﻧـﺮم اﻓـﺰاري در زﺑـﺎن ﺳﻲﺷﺎرپ ﺑﻪ اﺳﻢ ﺟﺒﺮانﺳﺎز ﻣﻐﻨﺎﻃﻴﺴﻲ ﺳﺎﺧﺘﻪ ﺷﺪه ﻛﻪ ﻫﻨﺪﺳﻪ ﺣﻠﻘﻪﻫﺎي ﺑﺴﺘﺔ ﺟﺮﻳﺎن اﻟﻜﺘﺮﻳﻜﻲ، ﻣﺤﻞ ﻧﺼﺐ و اﻧﺪازه ﻣﺆﻟﻔﻪﻫـﺎ ي ﻣﻴﺪان ﻣﻐﻨﺎﻃﻴﺴﻲ را درﻳﺎﻓﺖ ﻛﺮده و ﺟﺮﻳﺎن اﻟﻜﺘﺮﻳﻜﻲ ﻣﺮﺑﻮط ﺑـﻪ ﻫـﺮ ﻣـﺪار ﺑﺴـﺘﻪ را ﻣﺤﺎﺳـﺒﻪ ﻣـﻲ ﻧﻤﺎﻳـﺪ ﻛـﻪ ﺑـﺎ اﻳـﻦ ﻛـﺎر ﻣﻴـﺪان ﻣﻐﻨﺎﻃﻴﺴﻲ در اﻃﺮاف ﺷﻨﺎور، ﻛﺎﺳﺘﻪ ﻣﻲﺷﻮد. ﺻﺤﺖ و دﻗﺖ ﻧﺮم اﻓﺰار ﺳﺎﺧﺘﻪ ﺷﺪه ﺑﺎ اﺳﺘﻔﺎده از رواﺑـﻂ ﺗﺤﻠﻴﻠـﻲ ﻣﻴـﺪان ﻣﻐﻨﺎﻃﻴﺴـﻲ ﺑﺮرﺳﻲ ﺷﺪه، ﺳﭙﺲ ﻳﻚ زﻳﺮدرﻳﺎﻳﻲ در ﻧﺮم اﻓـﺰار ﻛﺎﻣﺴﻮل ﺷـﺒﻴﻪ ﺳـﺎزي ﺷـﺪ و از داده ﻫـﺎي آن ﺑـﺮاي ﺷـﺒﻴﻪ ﺳـﺎزي در ﻧـﺮم اﻓـﺰار ﺟﺒﺮانﺳﺎز ﻣﻐﻨﺎﻃﻴﺴﻲ، اﺳﺘﻔﺎده ﺷﺪ. ﻧﺘﺎﻳﺞ ﺑﻪدﺳﺖآﻣﺪه از ﻧﺮم اﻓﺰار ﺟﺒﺮانﺳﺎز ﻣﻐﻨﺎﻃﻴﺴﻲ ﺗﻮاﻓـﻖ ﺑﺴـﻴﺎر ﺧـﻮﺑﻲ ﺑـﺎ ﻧﺘـﺎﻳﺞ ﺣﺎﺻـﻞ از ﻧﺮم اﻓﺰار ﻛﺎﻣﺴﻮل داﺷﺖ و ﺗﻮاﻧﺴﺘﻪ ﺑﻮد ﻣﻴﺪان ﻣﻐﻨﺎﻃﻴﺴﻲ را ﺑﻪ ﺧﻮﺑﻲ ﭘﻴﺶﺑﻴﻨﻲ ﻧﻤﺎﻳﺪ.

One way of detecting ships or submarines is the observation of magnetic field signature around the object. Ships or submarines can be assumed as a collection of closed circuit of electrical currents. The electrical current of each close circuit must be properly regulated. The main purpose is production of a magnetic field equal to the magnetic field around the ship but with the opposite direction. By using this method, the magnetic field can be effectively reduced. This simulator is designed in C# language and it was named General Magnetic Compensation. The inputs of this software are geometry, location and magnetic field and the output is electrical currents of each closed loop, thus making the magnetic field reduced around the submarine. Accuracy and validity of the new software was investigated by analytical relation of magnetic field for proper geometry. Then a submarine was simulated in COMSOL and data of this simulation were used in General Magnetic Compensation software. The results were in great agreement with the results of the COMSOL software and could predict the magnetic field well.