中国舰船研究
中國艦船研究
중국함선연구
CHINESE JOURNAL OF SHIP RESEARCH
2014年
6期
100-103
,共4页
船舶消磁%感应磁场%磁导率变化
船舶消磁%感應磁場%磁導率變化
선박소자%감응자장%자도솔변화
ship degaussing%induced magnetic fields%permeability variation
船舶用钢由于受焊接和切割等热处理及加工工艺的不同，磁导率会发生较大变化，导致舰船磁场也发生改变。在电磁理论的基础上，通过舰船磁场数字仿真计算，研究钢板磁导率变化对船舶感应磁场特性权重的影响，分析舰船磁场的变化范围，并通过磁性物理船模试验进行验证。结果表明，当钢板磁导率变化范围为20%时，船舶感应磁场各分量特征曲线总体趋势保持不变，但其磁场幅值发生较大变化，其中纵向磁化磁场变化19.3%，横向磁化磁场变化17.1%，垂向磁化磁场变化16.2%。
船舶用鋼由于受銲接和切割等熱處理及加工工藝的不同，磁導率會髮生較大變化，導緻艦船磁場也髮生改變。在電磁理論的基礎上，通過艦船磁場數字倣真計算，研究鋼闆磁導率變化對船舶感應磁場特性權重的影響，分析艦船磁場的變化範圍，併通過磁性物理船模試驗進行驗證。結果錶明，噹鋼闆磁導率變化範圍為20%時，船舶感應磁場各分量特徵麯線總體趨勢保持不變，但其磁場幅值髮生較大變化，其中縱嚮磁化磁場變化19.3%，橫嚮磁化磁場變化17.1%，垂嚮磁化磁場變化16.2%。
선박용강유우수한접화절할등열처리급가공공예적불동，자도솔회발생교대변화，도치함선자장야발생개변。재전자이론적기출상，통과함선자장수자방진계산，연구강판자도솔변화대선박감응자장특성권중적영향，분석함선자장적변화범위，병통과자성물리선모시험진행험증。결과표명，당강판자도솔변화범위위20%시，선박감응자장각분량특정곡선총체추세보지불변，단기자장폭치발생교대변화，기중종향자화자장변화19.3%，횡향자화자장변화17.1%，수향자화자장변화16.2%。
The permeability of steel is changed greatly under different heat treatments and technologies, including jointing and incision, and these factors lead to the changes in the magnetic field of the ship. On the basis of electromagnetic theory, the effects of steel magnetic properties on induced magnetic fields are investigated in this paper through simulation,and the range of magnetic field variation is also analyzed. Certain ship model experiments are conducted to further validate the proposed theory. The results reveals that while the permeability of steel is changed by 20%, the trend of curves for the induced magnetic fields stays constant,but the amplitude value of the induced magnetic fields changes significantly,with the longi?tudinal magnetic field varying by 19.3%,the athwartships magnetic field varying by 17.1%, and the verti?cal magnetic field varying by 16.2%.
