...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Aeronautical Journal >Optimising the roll-sway motion cues available from a short stroke hexapod motion platform
【24h】

Optimising the roll-sway motion cues available from a short stroke hexapod motion platform

机译：优化可从短行程六脚架运动平台获得的侧倾运动提示

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents findings from research conducted at the University of Liverpool aimed at optimising the motion cues available from a short-stroke hexapod motion platform. Piloted simulations were conducted for a typical helicopter low-speed sidestep manoeuvre. To correctly simulate the sidestep manoeuvre the motion platform must translate laterally at the same time as it rolls. If the motion in these two axes is not properly harmonised then the pilot can experience significant false motion cues. This is a particular concern for short-stroke hexapod platforms, where displacement limits can severely constrain the available lateral travel particularly during motion in multiple axes (e.g. roll and sway). During the experiment the motion filter gains in the roll and sway axes and the roll-axis motion filter break-frequency were varied. Objective and subjective measures of pilot performance and motion fidelity were gathered for each motion filter configuration, the latter using a new motion fidelity rating scale. The key findings show that acceptable motion cues could only be achieved by careful harmonisation of the motion filter gains in the roll and sway axes. A high gain in the roll axis coupled with a low gain in the sway axis resulted in motion which was abrupt and uncomfortable. On the other hand, too large a gain in the sway axis resulted in extreme lateral displacements of the motion platform leading to undesirable side-effects. The phase distortion between the visual and platform motion cues, introduced by the roll-axis motion filter, also had a significant impact on the pilot's perception of motion fidelity. These results are presented in the form of proposed motion fidelity criteria for short-stroke hexapod platforms and compared with results from previous research conducted on a range of large motion systems.
机译：本文介绍了在利物浦大学进行的旨在优化短行程六脚架运动平台的运动线索的研究结果。对典型的直升机低速回避动作进行了试点模拟。为了正确模拟回避动作，运动平台必须在滚动的同时横向移动。如果这两个轴上的运动未正确协调，则飞行员可能会遇到明显的虚假运动提示。这对于短行程六脚架平台尤其重要，在该平台上，位移限制会严重限制可用的横向行程，尤其是在多轴运动（例如，横摇和横摆）过程中。在实验过程中，侧倾和摇摆轴的运动滤波器增益和侧倾轴运动滤波器的中断频率均发生了变化。针对每种运动滤波器配置，收集了飞行员性能和运动保真度的客观和主观衡量指标，后者使用了新的运动保真度评定量表。主要发现表明，只有通过仔细协调侧倾和摇摆轴上的运动滤波器增益，才能获得可接受的运动提示。侧倾轴的高增益与摇摆轴的低增益会导致运动突然而令人不适。另一方面，摇摆轴的增益过大会导致运动平台产生极大的横向位移，从而导致不良的副作用。侧倾轴运动滤波器引入的视觉和平台运动提示之间的相位失真，也对飞行员对运动保真度的感知产生了重大影响。这些结果以拟议的短冲程六脚架平台运动保真度标准的形式呈现，并与先前在一系列大型运动系统上进行的研究结果进行了比较。

著录项

  • 来源
    《The Aeronautical Journal》 |2015年第1211期|23-44|共22页
  • 作者

    S. J. Hodge; P. Perfect; G. D. Padfield; M. D. White;

  • 作者单位

    Simulation Department, BAE Systems Preston UK;

    Department of Engineering University of Liverpool Liverpool UK;

    Department of Engineering University of Liverpool Liverpool UK;

    Department of Engineering University of Liverpool Liverpool UK;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号