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针对目前舰船消磁绕组优化调整方法中只考虑舰艇磁场信号幅值而较少考虑磁场梯度信号幅值的不足,提出同时以磁场幅值和磁场梯度幅值削减为目标的优化调整方法.为此,首先以线圈等效电流值为优化对象,磁场和梯度峰值为优化目标,建立了消磁绕组优化调整的多目标数学模型;随后采用多目标微粒群算法求解得到了该优化问题的Pareto解集;最后通过一个计算实例验证了方法的有效性.实例结果表明该方法能够同时处理磁场和磁场梯度幅值,并能给出多种不同等效电流组合以供选择使用.
In view of the fact that only the magnetic field signal amplitude of the ship is considered and the amplitude of the magnetic field gradient signal is seldom considered in the optimal adjustment method of the demagnetization winding of the ship, an optimization and adjustment method that aims to reduce the amplitude of the magnetic field amplitude and the magnetic field gradient is proposed Firstly, the equivalent current value of the coil is taken as the optimization object, and the magnetic field and the gradient peak are optimized. A multi-objective mathematic model of degaussing winding optimization is set up. Then the Pareto solution set of this optimization problem is obtained by using the multi-objective particle swarm optimization algorithm. Finally, a numerical example is given to verify the effectiveness of the proposed method.Example results show that this method can process magnetic and magnetic field gradient amplitude simultaneously, and can provide many different equivalent current combinations to choose from.