[1]黄艳,蔡景,代定强.基于Modelica的RAT作动机构仿真及设计参数优化[J].深圳大学学报理工版,2021,38(4):433-440.[doi:10.3724/SP.J.1249.2021.04433]
 HUANG Yan,CAI Jing,and DAI Dingqiang.Modelica-based simulation and optimization of design parameters of RAT actuator[J].Journal of Shenzhen University Science and Engineering,2021,38(4):433-440.[doi:10.3724/SP.J.1249.2021.04433]
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基于Modelica的RAT作动机构仿真及设计参数优化
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第38卷
期数:
2021年第4期
页码:
433-440
栏目:
电子与信息科学
出版日期:
2021-07-10

文章信息/Info

Title:
Modelica-based simulation and optimization of design parameters of RAT actuator
文章编号:
202104014
作者:
黄艳蔡景代定强
南京航空航天大学民航学院,江苏南京 211106
Author(s):
HUANG Yan CAI Jing and DAI Dingqiang
College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu Province, P.R.China
关键词:
民用飞机冲压空气涡轮Modelica作动机构建模仿真设计参数优化
Keywords:
civil aircraft ram air turbine Modelica actuator modeling simulation design parameter optimization
分类号:
V262
DOI:
10.3724/SP.J.1249.2021.04433
文献标志码:
A
摘要:
作动机构是保证冲压空气涡轮(ram air turbine,RAT)系统正常启动和工作的关键,为提高RAT系统作动机构的可靠性,提出一种基于多领域统一建模语言Modelica的RAT作动机构仿真建模及设计参数优化方法.基于实际使用案例建立故障树,明确导致作动机构主要故障模式的组件;采用Modelica语言对RAT作动机构进行仿真建模,对比实际使用情况,验证模型正确性,误差约为3.78%;针对相关组件的设计参数对作动机构展开时间和末端速度的敏感性分析,得出主要影响参数;为避免液压油压力过大造成泄漏,在满足作动机构展开时间及末端展开速度约束的前提下,以确定液压油峰值压力最小时的设计参数为目标,仿真得到最优参数设计值.本研究成果可为中国RAT正向设计提供参考,具有良好的工程应用价值.
Abstract:
The actuator is the key to ensure the normal startup and operation of the ram air turbine (RAT) system. In order to reduce and avoid the main failures of the actuator of the RAT system, a Modelica-based RAT actuator simulation modeling and design parameter optimization method are proposed. Firstly, a fault tree is established based on the actual cases of the RAT, and the components that cause the main failure modes of the actuator are analyzed. Secondly, the model of RAT actuator is modeled using Modelica language. The actual use is compared to verify the model and the accuracy is about 3.78%. Finally, in order to avoid oil leakage caused by excessive hydraulic oil pressure, under the premise of satisfying the deployment time of the actuator and the end deployment speed range, the design parameters when the peak pressure of the hydraulic oil is the minimum are determined as the goal, and the relevant design parameters are compared. After carrying out the sensitivity analysis of relevant design parameters to the deployment time of the actuator and the pressure of hydraulic oil., the main influencing parameters are received, and the optimal parameter design values are obtained through simulation. The research results can provide a reference for the forward design of RAT in our country and have good engineering value.
更新日期/Last Update: 2021-07-30