振弦式陀螺电磁驱动结构设计与电磁分析

依据振弦式陀螺的工作原理提出一种振弦式陀螺电磁驱动方案，分析了振弦式陀螺电磁驱动电学模型与动力学模型，初步设计了振弦式陀螺电磁驱动结构，运用MATLAB数值软件设定目标参数和初始值计算得到初始结构尺寸；应用Maxwell电磁软件分析了振弦式陀螺电磁驱动系统中永磁体尺寸、永磁体间距、背磁片、Halbach永磁体阵列等因素对电磁驱动模型气隙磁感应强度的影响；最后优化了振弦式陀螺结构模型并进行了电磁驱动结构模型仿真分析。结果表明，电磁驱动整体结构模型气隙磁感应强度得到很大提升，可以很好地降低陀螺功耗，提高陀螺框架驱动力，优化陀螺结构尺寸，从而验证了振弦式陀螺电磁驱动方案模型的可行性，为振弦式陀螺的结构优化设计与实际产品试制研究奠定了理论基础。

Structural Design and Electromagnetic Analysis of Vibrating String Gyro Electromagnetic Drive

Based on the principle of vibrating-string gyro, an electromagnetic drive scheme of vibrating-string gyro is proposed. It analyzes the electrical model and dynamic model of the vibrating-string gyro electromagnetically driven, preliminarily designs the electromagnetic drive structure of the vibrating-string gyro and uses the MATLAB numerical software to set target parameters and calculate the initial value to obtain the initial structural size. It also analyzes the influence of the permanent magnet size, permanent magnet spacing, back magnetic sheet and Halbach permanent magnet array on the air gap magnetic induction intensity of the electromagnetic drive model of the vibrating-string gyro by using the Maxwell electromagnetic software; Finally, the structure model of the vibrating-string gyro is optimized and the simulation analysis of the electromagnetic driving structure model is carried out. The results show that the air gap magnetic induction intensity of the whole structure model of the electromagnetic drive is greatly improved, the power consumption of the gyroscope can be reduced, 〖JP+1〗the driving force of the gyroscope frame can be increased, and the structure size of the gyroscope can be optimized. Therefore, the feasibility of the electromagnetic drive scheme model of the vibrating-string gyro is verified, which lays a theoretical foundation for the structural optimization design and the trial production of vibrating-string gyro.