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Design and Multi-Objective Optimization of a High-Torque-Density Embedded Outer Rotor Motor Drive Unit for Large-Caliber Ammunition Reloading Systems
- Acta Armamentarii (2026)
- 作者机构：
南京理工大学机械工程学院,江苏,南京,210094
- 作者简介：
- 基金信息：
DOI：10.12382/bgxb.2025.0518
CLC： TJ301Received：18 June 2025，
Online First：13 February 2026，
- 稿件说明：
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赵常乐，佟明昊，羊柳，等. 某大口径补弹装置用高转矩密度嵌入式外转子电机驱动单元设计与多目标优化[J/OL]. 兵工学报, 2026(2026-02-16). https://doi.org/10.12382/bgxb.2025.0518.
ZHAO C, TONG M H, YANG L, et al. Design and multi-objective optimization of a high-torque-density embedded outer rotor motor drive unit for large-caliber ammunition reloading systems[J/OL]. Acta Armamentarii, 2026(2026-02-16). https://doi.org/10.12382/bgxb.2025.0518. (in Chinese)
赵常乐，佟明昊，羊柳，等. 某大口径补弹装置用高转矩密度嵌入式外转子电机驱动单元设计与多目标优化[J/OL]. 兵工学报, 2026(2026-02-16). https://doi.org/10.12382/bgxb.2025.0518. DOI：
ZHAO C, TONG M H, YANG L, et al. Design and multi-objective optimization of a high-torque-density embedded outer rotor motor drive unit for large-caliber ammunition reloading systems[J/OL]. Acta Armamentarii, 2026(2026-02-16). https://doi.org/10.12382/bgxb.2025.0518. (in Chinese) DOI：
摘要
为匹配大口径火炮补弹装置驱动单元“高扭低转”负载特性，并满足轻量化、严格空间约束的设计需求设计。设计了一款Halbach阵列的表贴式外转子永磁电机与内嵌的行星减速器构成的补弹装置驱动单元。为进一步提升驱动单元性能，并解决优化参数多导致的机电系统优化难度大的问题。提出了针对该驱动单元的电磁-传动耦合系统分层优化方法，以电磁系统定转子齿形、传动系统齿轮模数、齿数与变位系数等19个机电参数为优化参数，在空间与系统耦合的约束下对体积、效率与转矩进行多目标优化，实现驱动单元性能满足要求的前提下，直径缩减11mm、效率提高4.31%、转矩波动减小36%。最终根据优化结果制作实验样机与仿真结果对比分析，验证驱动单元优化设计的正确性。
Abstract
To match the "high-torque low-speed" load characteristics of the drive unit for large-caliber gun ammunition replenishment devices and meet the design requirements of lightweight and strict spatial constraints
this paper designs a drive unit composed of a Halbach-array surface-mounted outer-rotor permanent magnet motor and an embedded planetary gear reducer. To further enhance the performance of the drive unit and address the challenge of optimizing the numerous parameters of the electromechanical system
a hierarchical optimization method for the electromagnetic-transmission coupled system of this drive unit is proposed. Using 19 electromechanical parameters—including the stator and rotor tooth profiles of the electromagnetic system
and the gear module
number of teeth
and modification coefficients of the transmission system—as optimization variables
a multi-objective optimization of volume
efficiency
and torque is conducted under spatial and system coupling constraints. The results show that
while meeting performance requirements
the drive unit's diameter is reduced by 11 mm
efficiency is increased by 4.31%
and torque ripple is decreased by 36%. Finally
a prototype was fabricated based on the optimization results
and a comparative analysis with simulation results was conducted
verifying the correctness of the optimized design of the drive unit.
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references
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