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Verification and Validation of a Theoretical Model of a Direct Drive Valve-Controlled Electrohydrostatic Actuator for Primary Flight Control.

机译:用于主飞行控制的直接驱动阀控制的电动静液压执行机构的理论模型的验证和确认。

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摘要

In this work, a theoretical parametric nonlinear model for a hybrid variable pressure actuator was verified through dynamic system modeling techniques and validated using experimental data. The hybrid configuration under investigation combines design features of a valve-controlled hydraulic actuator and an electrohydrostatic actuator resulting in a variable pressure hydraulic actuator. A comparison analysis is conducted to determine the performance and, more specifically, power characteristics of the hybrid configuration relative to the two types of conventional flight control actuation---valve-controlled actuators and electrohydrostatic actuators. The hybrid configuration is unique in the sense that it allows for independent localized hydraulic system pressure control. In this analysis, bang-bang control is implemented by defining low-pressure and high-pressure thresholds resulting in active-passive electrical power consumption. The hybrid configuration was shown to exhibit power input superiority due to duty-cycle behavior of the electrical power element during high-load low-rate scenarios when compared to traditional actuation configurations.
机译:在这项工作中,通过动态系统建模技术验证了混合可变压力执行器的理论参数非线性模型,并使用实验数据进行了验证。研究中的混合动力配置结合了阀控液压执行器和电动静液压执行器的设计特征,从而形成了可变压力液压执行器。进行比较分析来确定混合动力配置相对于两种传统的飞行控制作动-气门控制作动器和静液压作动器的性能,更具体地讲,是功率特性。混合配置在允许独立的局部液压系统压力控制的意义上是独特的。在此分析中,通过定义导致主动-被动功耗的低压和高压阈值来实现爆炸控制。与传统的致动配置相比,由于在高负载低速情况下电力元件的占空比行为,混合动力系统表现出了功率输入优势。

著录项

  • 作者

    Hussain, Heather Syeda.;

  • 作者单位

    Rochester Institute of Technology.;

  • 授予单位 Rochester Institute of Technology.;
  • 学科 Engineering Aerospace.;Engineering Mechanical.
  • 学位 M.S.
  • 年度 2012
  • 页码 160 p.
  • 总页数 160
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 公共建筑;
  • 关键词

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