直升机电动绞车方案论证报告 1 目 录 1 . 项目研究背景、目的和意义 ...................................................................................................... 2 1 .1 研究背景 ............................................................................................................................ 2 1 .2 研究目的和意义 ................................................................................................................ 3 2 . 国内外现状 .................................................................................................................................. 3 2 .1 国外研究现状 .................................................................................................................... 3 2 .2 国内研究现状 .................................................................................................................... 4 3 . 研究内容及方案 .......................................................................................................................... 4 3 .1 电动绞车性能分析及总体结构设计 ................................................................................. 4 3 .1 .1 直升机电动绞车功能需求 ...................................................................................... 5 3 .1 .2 性能指标 ................................................................................................................. 5 3 .1 .3 总体设计 .................................................................................................................. 5 3 .2 无刷直流电机 .................................................................................................................... 8 3 .3 绞车驱动控制系统 ............................................................................................................. 9 3 .3 .1 被控对象 .....................................................................................................................
