2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE)最新文献_第9页

Integrated Optimization Design of Solid Rocket Trajectory / Overall Parameters 固体火箭弹道/总参数综合优化设计

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852880

Yuxiao Deng, Yang Liu, Fang Bian, Zaicheng Chen

{"title":"Integrated Optimization Design of Solid Rocket Trajectory / Overall Parameters","authors":"Yuxiao Deng, Yang Liu, Fang Bian, Zaicheng Chen","doi":"10.1109/ICMAE56000.2022.9852880","DOIUrl":"https://doi.org/10.1109/ICMAE56000.2022.9852880","url":null,"abstract":"This paper studies the integrated optimization design of trajectory / overall parameters of multistage solid launch vehicle. The mathematical models related to the overall design of solid launch vehicle are established, mainly including flight program control model, ballistic model, mass model, engine performance calculation model and so on. An optimization model for integrated trajectory / overall parameter optimization design of solid launch vehicle is proposed. The optimization model takes the maximum effective load as the objective function and clarifies the path constraints and terminal constraints that should be met during the flight of the launch vehicle. The particle swarm optimization algorithm is used as the optimization algorithm to improve the values of inertia weight and learning factor in the particle swarm optimization algorithm, so that the algorithm has better search accuracy and exploration ability. The integrated optimization design of solid rocket trajectory and overall parameters is realized in this paper. The simulation results show that the rocket carrying capacity of the optimization scheme is improved by 13.1 %, and the terminal constraints and process constraints are well satisfied. The thrust scheme can provide theoretical reference for the detailed design of solid rocket motors at all levels.","PeriodicalId":198002,"journal":{"name":"2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130816297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hardware-in-the-Loop Simulation Platform for Fault Diagnosis of Distributed Engine Control System 分布式发动机控制系统故障诊断的硬件在环仿真平台

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852848

Cansen Wang, Yingqing Guo, Wanli Zhao, Haojie Ying, Kejie Xu

{"title":"Hardware-in-the-Loop Simulation Platform for Fault Diagnosis of Distributed Engine Control System","authors":"Cansen Wang, Yingqing Guo, Wanli Zhao, Haojie Ying, Kejie Xu","doi":"10.1109/ICMAE56000.2022.9852848","DOIUrl":"https://doi.org/10.1109/ICMAE56000.2022.9852848","url":null,"abstract":"In this paper, a hardware-in-the-loop real-time simulation platform for fault diagnosis of distributed engine control system is constructed by using rapid prototype technology. The simulation platform mainly includes main workstation, aircraft engine terminal, fault diagnosis terminal and processor node. The main workstation monitors the engine parameters and displays the results of fault diagnosis algorithm. The aircraft engine terminal uses automatic code generation technology to embed the model into an industrial computer with a real-time system. The embedded code of fault diagnosis algorithm is generated automatically and deployed in the fault diagnosis principle prototype built by DSP. A bank of Kalman filters fault diagnosis algorithm is used to diagnose the sensor fault of distributed engine control system, which has been tested repeatedly under digital conditions and hardware conditions. The results show that the system can realize sensor fault diagnosis in distributed engine control system under digital conditions and hardware conditions. The execution time of the diagnosis algorithm in DSP is 3.7ms. The hardware-in-the-loop simulation platform can simulate the common typical faults of distributed engine control system and can verify the diagnostic algorithm in real-time.","PeriodicalId":198002,"journal":{"name":"2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133903616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hypersonic Vehicle/Deeply Precooled Combined Cycle Engine Integration Analysis 高超声速飞行器/深度预冷联合循环发动机集成分析

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852884

Shangzhe Zheng, Yu-chun Chen, Jiahui Wang, Zhennan Zhao

{"title":"Hypersonic Vehicle/Deeply Precooled Combined Cycle Engine Integration Analysis","authors":"Shangzhe Zheng, Yu-chun Chen, Jiahui Wang, Zhennan Zhao","doi":"10.1109/ICMAE56000.2022.9852884","DOIUrl":"https://doi.org/10.1109/ICMAE56000.2022.9852884","url":null,"abstract":"Based on the typical mission requirement of near space aircraft. A performance analysis model of high-speed aircraft/combined power integration is established. Taking the Deeply Precooled Combined Cycle Engine as the evaluation object, evaluates the ability of the power to complete typical missions, and studies the effects of different climbing modes, different wing loads and different takeoff weights on the aircraft. The important performance parameters of high-speed aircraft and engine in the flight profile are obtained. The research results show that the Deeply Precooled Combined Cycle Engine is suitable for completing long-range missions. If the mission purpose is to save fuel, the lower dynamic pressure climbing mode is selected and if the mission purpose is to spend a short flight time, the higher dynamic pressure climbing mode is selected. Larger wing load takes a longer time to reach the cruise altitude, and the flight distance is also longer. However, when the wing load exceeds a certain value, the supersonic cruise angle of attack will exceed the optimal angle of attack, and the maximum lift drag ratio of the cruise point can’t be fully utilized. The benefit brought by the fuel load of large takeoff weight is greater than the increase of fuel consumption brought by the reduction of thrust weight ratio, but the acceleration is poor in the subsonic accelerating climb, so the mobility in the subsonic climb is also an important constraint restricting the upper limit of the takeoff weight of the aircraft.","PeriodicalId":198002,"journal":{"name":"2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114700859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature Field Simulation of Asphalt Heating Furnace 沥青加热炉温度场模拟

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852911

Jiankui Dang, R. Ge, X. Fu, Liwen Chen

引用次数: 0

Precision Analysis and Evaluation of BDS Real-time Precise Point Positioning 北斗系统实时精确点定位精度分析与评价

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852905

Xiangyang Han, Wanlin Zhao, Ya Cui, Yijin Chen

引用次数: 0

Numerical Simulations of Vortex-Acoustic Coupling in Two-Phase Flow of VKI Motor VKI电机两相流涡声耦合数值模拟

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852904

C. Huo, Tengfei Luo, Peijin Liu

引用次数: 0

Using Grey Relation Analysis to Improve Tool Life in Medium Carbon Steel Turning by Coating Multilayer HSS Insert 应用灰色关联分析提高镀膜多层高速钢刀片车削刀具寿命

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852876

W. M., H. Al-Ethari, S. Kareem

引用次数: 1

Mathematically Simulated Conventional Measurement of Spur Gear Tooth Thickness using 3D Reconstruction 用三维重建技术对直齿齿轮齿厚测量进行数学模拟

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852869

H. Shalaby, A. Khalil, M. Damir

{"title":"Mathematically Simulated Conventional Measurement of Spur Gear Tooth Thickness using 3D Reconstruction","authors":"H. Shalaby, A. Khalil, M. Damir","doi":"10.1109/ICMAE56000.2022.9852869","DOIUrl":"https://doi.org/10.1109/ICMAE56000.2022.9852869","url":null,"abstract":"Dimensional measurements are performed to insure adequate performance and functionality of mechanical elements and engineering components. A large variety of well-established and special purpose conventional and contact measuring instruments are designed for different dimensional measurements. However, conventional measuring techniques have some limitations such as sensitivity to environmental conditions, unavailability, cost, time consumption, and part size limitations. In this work, it is suggested to mathematically simulate conventional measuring techniques when they are not applicable. These simulations can be applied on a 3D reconstructed model of the part of interest. In this work the 3D model of a spur gear was reconstructed using photogrammetry. A mathematical model was developed to simulate the well-established measurement of spur gear tooth thickness at both pitch line and constant chord. The proposed approach was applied on different gear teeth and sections. A conventional measuring instrument was used to measure the teeth thickness of the same gear. Simulated and actual measurements were compared to their corresponding nominal values and were all in good agreement. The proposed approach provides an adequate non-contact measurement technique well suited for in-situ measurements of part dimensions with diverse sizes and complexities.","PeriodicalId":198002,"journal":{"name":"2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127847502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on Length Effect of Seals between Inboard Flap and Outboard Flap of a Civil Aircraft 民用飞机内外襟翼密封长度效应研究

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-07-20 DOI: 10.1109/ICMAE56000.2022.9852839

Mengying Chen, Longqian Zheng, Dongyun Zhang, Bo Wang

{"title":"Investigation on Length Effect of Seals between Inboard Flap and Outboard Flap of a Civil Aircraft","authors":"Mengying Chen, Longqian Zheng, Dongyun Zhang, Bo Wang","doi":"10.1109/ICMAE56000.2022.9852839","DOIUrl":"https://doi.org/10.1109/ICMAE56000.2022.9852839","url":null,"abstract":"Seals are usually designed and installed in high lift devices of a civil craft for maintaining good aerodynamic performance and improving the issues such as aerodynamic noise and flap vibration. This paper addresses an investigation on the seals between inboard flap and outboard flap and analyze the length effect of seals on separation flow. The Computational Fluid Dynamics (CFD) simulations are performed with solving three-dimensional incompressible Reynolds-averaged NavierStokes (RANS) equations, and the turbulence is simulated with the k-omega shear stress transport (SST) turbulence model. According to the comparisons of four configurations of seals with different lengths, the existence of seals only has an effect on the nearby region, thus having no significant effect on lift and drag coefficients of the whole aircraft. When the seals did not make the opening space between inboard flap and outboard flap totally sealed, the flow on pressure surface moves upwards through the space and breaks the separation vortex around the seals, thus weakening the separation flow. Furthermore, with the length of seals getting shorter, the disturbed region on suction surface of flaps becomes larger, the region of separation flow becomes smaller consequently. An appropriate length of seals between inboard flap and outboard flap can not only ensure lift requirements, but also help prevent the issues such as flap vibration from happening by weakening the separation flow. The results and analysis will provide a guidance reference in aerodynamic design of seals between inboard flap and outboard flap.","PeriodicalId":198002,"journal":{"name":"2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121484299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Preliminary Research on Space Situational Awareness Based on Event Cameras 基于事件相机的空间态势感知初步研究

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2022-03-24 DOI: 10.48550/arXiv.2203.13093

Kun Xiao, Peng Li, Guohui Wang, Zhi Li, Yi Chen, Yongfeng Xie, Yuqiang Fang

引用次数: 2