Optimal Control of Aeroelastic StochasticVibration of Aerocraft

ＯｐｔｉｍａｌＣｏｎｔｒｏｌｏｆａｅｒｏｅｌａｓｔｉｃＳｔｏｃｈａｓｔｉｃＶｉｂｒａｔｉｏｎｏｆＡｅｒｏｃｒａｆｔＷＡＮＧＳＨＩＺＨＯＮＧＳＨＥＮＹＩＺＨＡＮＧＹＯＮＧＺＨＵＹＩＮＦＡ王世忠，沈毅，张涌，朱银法（Ｄｅｐｔ．ｏｆＡｓｔｒｏｎａｕｔｉｃｓ...     

A Study on the Optical Fibre Tactile Sensor Array for Robots

ＡＳｔｕｄｙｏｎｔｈｅＯｐｔｉｃａｌＦｉｂｒｅＴａｃｔｉｌｅＳｅｎｓｏｒＡｒｒａｙｆｏｒＲｏｂｏｔｓＺＨＡＮＧＪｉｎｙｕ；ＱＩＡＮＧＸｉｆｕ；ＺＨＡＮＧＬｉｘｕｎ；ＣＨＥＮＦｅｉｆａｎ（张今瑜，强锡富，张立勋，陈非凡）（Ｄｅｐｔ．ｏｆＰｒｅｃｉｓｉｏ...     

An Analysis of Restricting Patterns of Aerostatic Guideways

ＡｎＡｎａｌｙｓｉｓｏｆＲｅｓｔｒｉｃｔｉｎｇＰａｔｔｅｒｎｓｏｆＡｅｒｏｓｔａｔｉｃＧｕｉｄｅｗａｙｓＺＨＡＮＧＲｏｎｇｓｈａｎ；ＢＯＨｕａｃｈｕａｎ；ＷＡＮＧＹａｎｇ张荣山，薄化川，王杨（Ｄｅｐｔ．ｏｆＭｅｃｈａｒｉｃａｌＥｎｇｉｎｅｅｒｉｎｇ，...     

A New Image Processing Algorithm for Log Cross Section Image

ＡＮｅｗＩｍａｇｅＰｒｏｃｅｓｉｎｇＡｌｇｏｒｉｔｈｍｆｏｒＬｏｇＣｒｏｓＳｅｃｔｉｏｎＩｍａｇｅＬＵＡＮＸｉｎＷＡＮＧＹａｎ（栾新）（王炎）（ＲｏｂｏｔＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅ，ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙ，Ｈａ...     

The Procedure of μ-synthesis

ＴｈｅＰｒｏｃｅｄｕｒｅｏｆμｓｙｎｔｈｅｓｉｓＷＡＮＧＧｕａｎｇｘｉｏｎｇＹＡＮＧＺｈｉｙｏｎｇ（王广雄）（杨志勇）（Ｄｅｐｔ．ｏｆＡｕｔｏｍａｔｉｃＣｏｎｔｒｏｌ，ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙ，Ｈａｒｂｉｎ，１５００...     

On the Design of Robust Asymptotic Tracking Controller for Uncertain Interconnected Systems

ＯｎｔｈｅＤｅｓｉｇｎｏｆＲｏｂｕｓｔＡｓｙｍｐｔｏｔｉｃＴｒａｃｋｉｎｇＣｏｎｔｒｏｌｌｅｒｆｏｒＵｎｃｅｒｔａｉｎＩｎｔｅｒｃｏｎｎｅｃｔｅｄＳｙｓｔｅｍｓＳＯＮＧＳｈｅｎｍｉｎＷＡＮＧＺｉｈｕａＺＨＡＮＧＦｕｅｎ宋审民，王子华，张福恩（Ｄｅｐｔ...     

ASYMPTOTIC ANALYSIS OF WEAKLY NONLINEAR AND FORCED OSCILLATIONS

ＡＳＹＭＰＴＯＴＩＣＡＮＡＬＹＳＩＳＯＦＷＥＡＫＬＹＮＯＮＬＩＮＥＡＲＡＮＤＦＯＲＣＥＤＯＳＣＩＬＬＡＴＩＯＮＳＣｈｅｎＦｅｎｇ（ＩｎｓｔｒｕｍｅｎｔＡｎａｌｙｓｉｓａｎｄＴｅｓｔｉｎｇＣｅｎｔｅｒ，ＣｅｎｔｒａｌＳｏｕｔｈＵｎｉｖｅｒｓｉｔｙｏｆＴ...     

DEVELOPMENT OF A FOREIGN EXCHANGE TRANSACTION SYSTEM

ＤＥＶＥＬＯＰＭＥＮＴＯＦＡＦＯＲＥＩＧＮＥＸＣＨＡＮＧＥＴＲＡＮＳＡＣＴＩＯＮＳＹＳＴＥＭＺｈａｎＹｉｑｉｎｇＬｉＹｉｚｈｉＣｈｅｎＸｉａｏｈｏｎｇＧａｏＹａｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＢｕｓｉｎｅｓＡｄｍｉｎｉｓｔｒａｔｉｏｎ，ＣｅｎｔｒａｌＳ...     

A Study on Modular Fixture Design with Intelligent Selection of Elements and Interactive Assembly

ＡＳｔｕｄｙｏｎＭｏｄｕｌａｒＦｉｘｔｕｒｅＤｅｓｉｇｎｗｉｔｈＩｎｔｅｌｌｉｇｅｎｔＳｅｌｅｃｔｉｏｎｏｆＥｌｅｍｅｎｔｓａｎｄＩｎｔｅｒａｃｔｉｖｅＡｓｓｅｍｂｌｙＬＩＵＷｅｎｊｉａｎ；ＨＵＡＮＧＹｏｎｇｑｉａｎｇ；ＣＨＡＮＧＷｅｉ（刘文剑），（...     

Laser Protection with VO_2 Film

ＬａｓｅｒＰｒｏｔｅｃｔｉｏｎｗｉｔｈＶＯ２ＦｉｌｍＺＨＡＺｉｚｈｏｎｇＺＨＡＮＧＹｕｎｄｏｎｇＷＡＮＧＱｉ（查子忠）（张蕴东）（王琪）（ＩｎｓｔｉｔｕｔｅｏｆＯｐｔｏｅｌｅｃｔｒｏｎｉｃｓ，ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙ，Ｈ...     

液体发射药配方设计的最优化数学模型

以能量为目标函数,探讨了液体发射药配方设计的最优化数学模型,使液体发射药配方设计问题转变为以爆温、水含量等为约束条件的极值问题,得出了以HAN—TEAN-水为体系的液体发射药爆温低、火药力高的最优配方．     

液体发射药中游离硝酸自动分析研究

本文继液体发射药主要成份自动分析研究之后，对游离硝酸进行了研究，所采用的电位计算法（适用０．５％以下）和一次微分处理法（适用于０．５％以上）不仅简单、速度快，而且能满足分析要求。     

硝酸羟胺基液体发射药能量特性优化设计

本文应用最优化原理建立了硝酸羟胺基液体发射药的配方优化设计方法及计算机程序.计算了硝酸羟胺基液体发射药最佳能量特性配方组成,并作出了以硝酸三乙醇胺为燃料的硝酸羟胺基液体发射药等火药力、等爆温的配方关系图.本文中的配方设计方法和给出的配方关系图对液体发射药的配方设计具有一定的指导作用.     

火炸药光固化3D打印成型

针对发射药、推进剂、炸药光固化3D打印技术,按照光固化3D打印技术的特点和应用方向,综述火炸药光固化3D打印技术的研究进展. 概述立体光固化成型技术、数字光处理技术、连续液面制造技术的成型原理以及工艺特点,分析光固化3D打印火炸药研究存在的问题,提出光固化3D打印火炸药采用新型黏合剂的重要性,总结光固化黏合剂的发展方向和趋势,并对火炸药光固化3D打印技术发展方向进行预测. 指出火炸药光固化3D打印技术应按照火炸药的应用背景,对光固化3D打印火炸药用含能黏合剂设计与制备、黏合剂与固体填料表界面作用、工艺适配性、性能精细化表征进行系统化研究,为光固化3D打印技术在火炸药中的应用提供参考.     

航天器液体晃动与液固耦合动力学研究概述

液体晃动是一个在充液航天器总体设计中必须考虑的问题,随着航天事业的飞速发展,推进剂点火箭、卫星等航天器总重量的比重不断加大,推进剂的运动对在轨航天器的稳定,控制,定位,对接的影响都是关键的。     

Combustion Properties of Metal Particles as Components of Modified Double-Base Propellants

Metal particles such as aluminum (Al),magnesium (Mg),boron (B) and nickel (Ni),as well as Mg/Al alloy (Mg/Al =3/4) are currently the most widely used ingredients in modified double-base propellants.In this contribution,the combustion properties of the metal species are studied by means of the high-speed photography technique and the non-contact wavelet-based measurement of flame temperature distribution.The combustion process of the A1,Mg and Mg/Al sampies shows both gas phase reaction and surface oxidation,which yield volatile and nonvolatile products,corresponding to the oxide and suboxide respectively.However,the combustion of B and Ni shows only gas phase reaction,due to their high melting point as well as high enthalpy of vaporization.In addition to the experiments,a hypothetical combustion model has been proposed to clarify the combustion characteristics of metal species in modified double-base propellants.     

Study on the Detonation Danger of Solid Propellants

A measurement system to study shock initiation behavior of solid propellants was established experimentally. By using this system, the study on shock initiation to the recovered solid propellants with micro damage was performed, especially on the deflagration to denonation transition (DDT) process of solid propellants under both the strong and weak conditions of restriction. The experimental results show that there is a fully compression region in DDT process.     

非均匀热流对热力排气系统自增压及排气损失影响

热力排气系统(TVS)是通过流体混合与节流换热排气双重作用实现低温推进剂在轨长期贮存的一种有效的压力控制技术.为深入研究推进剂贮箱在轨过程中非均匀受热时热力排气系统的控压特性,在工作于室温温区的TVS模拟装置上,以R141b为气液相变贮存介质,研究非均匀热流(仅气相受热、仅液相受热、气液一侧同时受热)对TVS作用下的贮箱增压特性及排气损失的影响.对比不同部位受热时,贮箱的增压速率、TVS运行特性和排放损失.结果表明,仅贮箱气相区受热时,贮箱升压速率最快,TVS启动频率最高,排放损失最大;仅贮箱液相区受热时,贮箱升压速率最慢,TVS启动频率最低,排放损失最小,相比仅气相区受热分别减少了42%,29%和33%.综合考虑贮箱的增压速率、流体热分层和排气损失,在空间微重力环境下,贮箱内壁面宜进行亲液处理或采用毛细结构来避免气枕空间的直接受热.     

Estimation of thermophysical properties of solid propellants based on particle packing model

A method for the estimation of thermophysical properties of two-and multi-phase solid propellants is proposed in this paper.The theoretical solutions for thermal conductivity and specific heat of a homogeneous solid propellant cell in the transient thermal conductivity process are deduced on the condition that one boundary of the cell is heated while others are adiabatic.A homogenization theory and the finite element method are employed to compute the mean temperature and heat flux of a representative volume element(RVE).According to the mean results and the theoretical solutions,the effective thermal conductivity and specific heat of solid propellant can be estimated.A packing algorithm,considering the solid particles(ammonium perchlorate(AP)or aluminum)as spheres or discs,is used to match the size distribution and volume fraction of solid propellants,and some mesoscopic models of two-phase and three-phase solid propellants are established.According to the estimation theory proposed in this paper,the effective thermal conductivity and specific heat of solid propellants are predicted.The effect of AP or Al volume fraction is also discussed in this paper.     

运载火箭液体推进剂机器人自动加泄技术初探

现有的运载火箭液体推进剂往往是易燃、易爆、易挥发或有腐蚀性的剧毒物质,采用机器人代替人在发射现场自动装拆加注管很有必要.针对加注管的装拆这一环境复杂、安全性要求极高的特殊任务,为充分发挥机器人和人的优势,充分利用当今先进的计算机网络技术,提出了采用有人监控的网络远程机器人控制系统来完成加注管的自动装拆.设计了以远程控制台、远程控制服务器、机器人底层控制、通信网络为基本组成的加注管自动装拆系统,系统的实现基于Java语言和TCP/IP网络协议等相关技术.