检索结果-内蒙古大学图书馆

CSAA/IET International Conference on Aircraft Utility systems (AUS 2018)

作者： Heran Zhang Junya Yin Xiaoping Ouyang Pengfei Zhang State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Zheda Road 38 310027 Hangzhou China Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration Aviation Industry Corporation of China Shuige Road 33 211106 Nanjing China

ISBN: (纸本)9781510872745

As a key component of the aircraft hydraulic system, the bootstrap reservoir can guarantee good self-priming of the pump at high rotation speed. This study provides the basic structure and working principle of the bootstrap reservoir. This paper analyzes the causes and characteristics of the reservoir burst. Through the co-simulation of AMESim and ANSYS workbench, the influence of the hydraulic impact on reservoir burst was observed, and the dangerous part where the bursting occurred was the piston rod.

关键词： Bootstrap Reservoir Self-priming Burst AMESim ANSYS

来源：评论

学校读者我要写书评

暂无评论

Numerical investigation of influence of structure and operating parameters on performance of vortex oil filter

Numerical investigation of influence of structure and operat...

引用

CSAA/IET International Conference on Aircraft Utility systems (AUS 2018)

作者： Wang Ning Chen Weijian Ning Guoli Ma Hui Key Laboratory of Aircraft Environment Control and Life Support MIIT Nanjing University of Aeronautics & Astronautics Nanjing P.R. China Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration Nanjing P.R. China

ISBN: (纸本)9781510872745

In this paper, the three-dimensional numerical simulation of solid-liquid two-phase flow in a vortex oil filter is performed by means of numerical simulation. The Reynolds stress turbulence model is used in the simulation flow field, and the DPM model is used for solid particle tracking. The influence of key structural parameters and operating parameters on the filtering effect was mainly studied, such as the inlet width, the size of the overflow pipe, the wall thickness and the insertion depth, the size of the cone angle and the length of the cone end. The results provide the basis for the rational design of the vortex oil filter.

关键词： Vortex oil filter Solid-liquid separation Turbulence model Numerical simulation

来源：评论

学校读者我要写书评

暂无评论

Performance Evaluation Methods for Multi-stream Plate-Fin Heat Exchanger

引用

Transactions of Nanjing University of aeronautics and Astronautics 2017年第5期34卷 553-560页

作者： Li Jun Wang Yu Jiang Yanlong Shi Hong Zheng Wenyuan School of Environmental Science and Engineering Suzhou University of Science and Technology Suzhou 215009 P. R. China College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration Nanjing 210016 P. R. China

Mathematical model of cross type multi-stream plate-fin heat exchanger is ***,mean square error of accumulative heat load is normalized by dimensionless,and the equations of temperature-difference uniformity factor are *** factors above and performance of heat exchanger are compared and analyzed by taking aircraft three-stream condenser as an *** results demonstrate that the mean square error of accumulative heat load is common result of total heat load and excess heat load between *** it can be influenced by passage arrangement,flow inlet parameters as well as flow *** parameter of mean square error of accumulative heat load can reflect the influence of passage arrangement to heat exchange performance and will not change dramatically with the variation of flow inlet parameters and flow ***-difference uniformity factor is influenced by passage arrangement and flow *** remains basically unchanged under a certain range of flow inlet parameters.

关键词： multi-stream plate-fin heat exchanger mean square error of accumulative heat load temperature-difference uniformity factor performance evaluation

来源：评论

学校读者我要写书评

暂无评论

The analysis of multi-cylinder synchronization in the load simulation system for reciprocating seals

The analysis of multi-cylinder synchronization in the load s...

引用

CSAA/IET International Conference on Aircraft Utility systems (AUS 2018)

作者： Shengrong Guo Pengfei Zhang Qinghe Zhou Dechen Sun Houtao Ku Chao Peng Xiaoping Ouyang Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration Nanjing Engineering Institute of Aircraft System Shuige Road 33211106 Nanjing China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Zheda Road 38 310027 Hangzhou China

ISBN: (纸本)9781510872745

The load simulation system is a subsystem of the reciprocating sealing test system, to evaluate the working life of the aircraft actuator's sealing components. In this paper, a synchronization controller based on bias coupling is developed to study the control characteristics of the multi-cylinder synchronization under the control of one servo valve. The dynamic model of the load is established and verified by simulations and experiments. The influences of friction, load, and etc. on the synchronization are also analyzed. And the results indicated that synchronization error can be effectively reduced using the controller, besides great cost savings.

关键词： Load simulation system One servo valve controlling parallel multi-cylinders Multi-cylinder synchronization Co-simulation Experimental verification

来源：评论

学校读者我要写书评

暂无评论

Study on the method of thermal prediction for electronic wing pod cabin 43

Study on the method of thermal prediction for electronic win...

引用

43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017

作者： Chao, Yang Liping, Pang Jun, Wang Yue, Zhou Hongquan, Qu School of Aviation Science and Engineering Beihang University Beijing100191 China Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration Nanjing211102 China College of Information Engineering North China University of Technology Beijing100144 China

ISBN: (纸本)9781538611272

For airborne electronic equipment, temperature is the most important factor affecting its performance, so it is very important to invest its dynamic temperature response process in a flight environment. By analyzing the heat exchange relationship between different devices in an electronic wing pod cabin, a temperature prediction method for electronic pod cabin based on the Random Vector Functional Link (RVFL) neural network is proposed in this paper. This method can complete a construction of prediction model using small amount of data. Hence it can realize a quick temperature response prediction only with the initial temperature values, and ensure relative high prediction accuracy. © 2017 IEEE.

关键词： Forecasting

来源：评论

学校读者我要写书评

暂无评论

Optimization Calculation and Ergonomics Evaluation of Civil Aircraft Passenger Cabin Layout

Optimization Calculation and Ergonomics Evaluation of Civil ...

引用

2017 International Conference on Advances in Materials,Machinery,Electrical Engineering(AMMEE 2017)

作者： Yuhui Sheng Xiaoru Wanyan Damin Zhuang Yue Zhou School of Aeronauic Science and Engineering Beihang University Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration

ISBN: (纸本)9781510842915

Passenger cabin is considered as one of the most important areas in the civil aircraft, and the cabin layout patterns significantly influence the passengers' comfort, airways' profits and the brand images of companies. This research is geared to the needs of dual-channel large aircraft cabin layout and their ergonomics design. In our study, the overall cabin optimization calculation based on genetic algorithm and the individual passenger's comfort evaluation based on the JACK software's simulation analysis are comprehensively adopted, so as to conduct the optimization design for cabin layout and the assessment for the man-machine characteristics of the optimized cabin layout. It can provide the theoretical basis and technical methods for evaluating the comprehensive performance of cabin design of large aircrafts with dual channels.

关键词： Cabin layout optimization calculation ergonomics evaluation genetic algorithm simulation analysis

来源：评论

学校读者我要写书评

暂无评论

Design and Analysis of All-electric Aircraft Nose Wheel Steering system Based on Intelligent Algorithm

Design and Analysis of All-electric Aircraft Nose Wheel Stee...

引用

2017 2nd International Conference on Applied Mechanics and Mechatronics Engineering(AMME 2017)

作者： Ming ZHANG Meng-jiao LENG Xin WU Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle Nanjing University of Aeronautics & Astronautics Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration

As all-electric aircraft has many advantages, aircraft nose wheel steering system would be developed to the all-electric direction. Aiming at the control demand of nose wheel steering system, based on the basic principles of nose wheel steering system and the design technique of mechanotronics, an all-electric aircraft nose wheel steering system composed of a nose wheel steering mechanism of two worm gear and a control servo system of fly-by-wire having both steering and anti-shimmy function is designed to meet the demand for operation control in nose wheel steering system. Besides, the fuzzy algorithm and BP neural network algorithm is applied to the control system to explore its algorithm. Then based on Matlab.Simulink and LMS/AMESim software, the united simulation model of the system with fuzzy PID controller is established to make the dynamic simulation analysis for the verification of its steering function, the research results indicate that the nose wheel steering system is reasonable and validated, can meet the requirements of the general project.

关键词： Mechanotronics design United simulation analysis Nose wheel steering system Landing gear

来源：评论

学校读者我要写书评

暂无评论

Study on the Method of Thermal Prediction for Electronic Wing Pod Cabin

Study on the Method of Thermal Prediction for Electronic Win...

引用

Annual Conference of the IEEE Industrial Electronics Society

作者： Yang Chao Pang Liping Wang Jun Zhou Yue Qu Hongquan School of Aviation Science and Engineering Beihang University Beijing China Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration Nanjing China College of Information Engineering North China University of Technology Beijing China

关键词： Temperature measurement Biological neural networks Predictive models Turbines Temperature distribution Training

来源：评论

学校读者我要写书评

暂无评论

Moisture prediction for civil aircraft cabin

Moisture prediction for civil aircraft cabin

引用

2016 IEEE/CSAA International Conference on Aircraft Utility systems, AUS 2016

作者： Kun, Luo Liping, Pang Helin, Zhang Beijing100191 China Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration Nanjing Engineering Institute of Aircraft Systems Nanjing211102 China

ISBN: (纸本)9781509010875

Relative humidity level affects cabin comfort of civil aircraft. In this paper, a prediction method of relative humidity was developed based on a well-mixed zonal model. To improve the prediction accuracy, a Lumped Virtual Moisture Source (LVMS) and its two-node moisture transfer model were established to describe a moisture desorption-Absorption process of the total of interiors materials in a simple way. The conception of lumped moisture capacity and lumped moisture resistance was firstly introduced to represent moisture storage capability and moisture transfer resistance for the total interior materials. A parameter identification procedure was further presented to obtain these two model parameters of LVMS for different types of civil aircrafts using measured data onboard. Cabin environmental measurements were carried out in five types of civil aircrafts. Compared with continuously measured data during flight, the method to predict the cabin relative humidity can adapt to different types of aircrafts and agree with measured data well. This study may provide some help to develop a reasonable humidity control strategy and suggest proper water storage of humidifier. © 2016 IEEE.

关键词： Humidity control

来源：评论

学校读者我要写书评

暂无评论

Design and Experimental Evaluation of PID Controller for Digital Electro-Pneumatic Cabin Pressure Control system

引用

Transactions of Nanjing University of aeronautics and Astronautics 2016年第5期33卷 576-583页

作者： Nie Jinfang Pan Quan Shen Hao Song Zhitao Zhang Dalin College of Automation Northwestern Polytechnical University Xi'an 710072 P.R. China Shanghai Aircraft Airworthiness Certification Center of CAAC Shanghai 200335 P.R. China Aviation Key Laboratory of Science and Technology on Aero Electromechanical System Integration Nanjing University of Aeronautics and Astronautics Nanjing 210016 P.R. China

The performance of the designed digital electro-pneumatic cabin pressure control system for the cabin pressure schedule of transport aircraft is *** the purpose of this study,an experimental setup consisting of a simulated hermetic cabin and altitude simulation chamber is configured for cabin pressure control system operation.A series of experimental tests are executed to evaluate the performance of the cabin pressure control *** parameters of the PID controller are *** the optimization process,the variation regularity of the rate of cabin pressure change under various conditions is *** approach to prioritize the control of the rate of change of cabin pressure based on the flight status model is proposed and verified *** experimental results indicate that the proposed approach can be adopted for the designed digital electro-pneumatic cabin pressure control system to obtain a better cabin pressure schedule and rate of cabin pressure change.

关键词： cabin pressure control digital electro-pneumatic PID controller

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：