提高加工工艺水平 加速惯性器件更新换代

本文论述了在宇航领域中精密加工工艺技术与研制惯性器件的关系,探讨了精密加工、超精密加工的机理和相关技术及当前国内外精密加工、超精密加工的发展趋势,特别着重论述了随着以微电子技术为代表的高技术群的发展而迅速兴起的微细加工和超微细加工,对研制新一代惯性器件—光纤陀螺和光纤加速度计的重要性。     

基于模糊人工神经网络的智能CAPP系统

对人工神经网络在惯性器件精密加工的ＣＡＰＰ系统中的应用进行了探讨，提出了用模糊技术进行了网络的前置处理的方法，并对惯性器件零件的实际加工特征进行了归纳。     

现代惯性仪表制造技术发展动向

本文论述了惯性仪表的根本特点在于它对力矩的敏感性，经典陀螺仪性能的提高主要依赖支承技术的改进，而超精密加工是支承制造技术的关键。文中对惯性仪表精密加工、超精密加工、特种加工及精密装配技术的现状及发展动向作了简要介绍和分析。     

微型机械惯性仪表的进展

引言与陀螺仪和加速度计等惯性敏感器件有关的技术正在发生重要的变化。这些变化有可能使惯性敏感器件广泛用于许多军民新领域。预料这将会发生而且在许多方面正在发生,因为惯性敏感器件正开始采用固态工业在最近十年里所开发的许多制作技术。惯性敏感器件正使用象铌酸锂这样的电光材料,采用早为固态电路开发的低劳动强度批加工工艺制作在硅、石     

平台框架的设计与加工工艺

平台框架是稳定平台的关键零件，其加工工艺也是惯性器件制造技术的关键工艺。由于平台结构尺寸及质量的限制，要求平台框架是薄壁零件。平台框架外形尺寸大，形状复杂，必须在飞行环境（过载，振动，冲击等）条件下，保证很高的平台框架精度、强度和刚度，以免对台体位置准确度产生影响。这就给设计及加工带来了巨大困难。本文针对平台框架设计、生产与飞行环境试验存在的疑难问题，在设计上提出了加强筋、变截面、Ｅ型锻铝结构形式的平台框架措施；在工艺上提出了新的工装夹具、改进机床和刀具的调整方法及对准方案件等切实可行的工艺方案，从而能在精密机床上加工出高精度的合格产品。经例行试验的考核和飞行试验的验证，证明了其合理性。     

捷联惯导系统中的减震技术

捷联惯导系统是随着数字计算机技术的发展而发展起来的新型导航系统,传统的捷联式系统惯性器件直接固联在载体上,力学环境对它的影响特别严重,其中振动环境的影响尤其突出。本文用减震的方法解决捷联式系统中惯性测量器件中的多频共振响应问题。依此减震技术制造的减震器已经检验。     

INS/GPS技术趋势

集中讨论了惯性器件、GPS、INS／GPS组合系统的精度、技术发展趋势以及对干扰的一些思考，这些技术将促成精度优于1m的导航系统。在惯性器件方面，介绍了主流的惯性器件技术，预测了未来的惯性器件及惯性导航系统的发展，阐述了计划中的GPS精度增强措施，描述了INS／GPS深组合的趋势，探讨了其组合互补优势，枚举了几个干扰影响的实例并介绍了有望提高系统鲁棒性的一些技术的发展趋势。     

羡台框架的设计与加工工艺

平台框架是稳定平台的关键零件，其加工工艺地是惯性器件制造技术的关键工艺。由于平台结构尺寸及质量的限制，要求平台框架是薄壁零件。平台框架外形尺寸大，形状复杂，必须在飞行环境条件下，保证很高的平台框架精度、强度和刚度，以免对台体位置准确产生影响。     

基于MEMS技术的惯性测量器件及系统的发展现状和应用

简要描述了MEMS系统的特点，介绍了基于MEMS技术的惯性测量器件及系统在国外的发展现状及应用情况，从武器系统低成本、小型化、高可靠性的发展趋势说明了武器系统中使用MEMS技术的必要性，同时根据武器系统对惯性测量器件的要求，通过国外武器系统中的成功应用说明了MEMS技术在飞航导弹或无人机的控制系统中使用的可行性，最后针对国内MEMS技术的发展情况，对MEMS惯性测量器件及系统在武器系统中的应用提出了相关要求。     

固态惯性技术在鱼雷控制中应用的展望

本文在简述鱼雷控制和惯性器件技术的发展的基础上，提出了在鱼雷控制系统中应用固态振动惯性器件的一种构想，论证了其工程方案的优越性和实现性，以期开辟在 雷控制中的应用固态惯性技术的新途径。     

Method for Measuring Velocity of Warhead Fragments Based on Photoelectric Detection

For measuring velocity and impacting position of single fragment of warhead, a non-contact measuring method is proposed, in which a six-light-screen array, a position indicator, a multi-channel chronograph and a computer are used.The principle of measurement is described. The key device of the system is a light screen array sensor which consists of six light screens allocated with certain geometrical parameters. When the fragment flies through the light screen array, the time of passing through each of the screens is recorded by the multi-channel chronograph. According to the time data and the geometrical parameters of the array, the velocity vector and the location of the fragment can be calculated immediately. The presented method can be used to locate the fragment and to measure the real velocity on its flying direction. It can also be used to measure the velocity of a fragment swarm after the system is engineered further.     

数码电子雷管中影响点火头性能因素分析

阐述了数码电子雷管中,点火药剂细结晶三硝基间苯二酚铅（LTNR）的制备工艺;从点火药剂的种类、加入黏合剂的质量分数、桥丝直径、点火头的电阻值、防潮漆的蘸涂等方面对点火头性能的影响因素进行了探讨;通过震动试验、并联起爆试验、延期精度检测与考核,试验结果表明：一次性合成的细结晶LTNR是制造数码电子雷管点火头较为理想的点火药剂,按技术要求生产的点火头性能指标能够满足行业标准要求。     

Stability of the Third Generation Intensifier under Illumination

The stability under illumination of transmission-mode GaAs photocathode sealed in the third generation intensifier is investigated by use of spectral response testing instruments. The variations of spectral response with the illumination times under weak and intense illumination are compared. The variations of photoemission performance parameters are also characterized. The results show that during initial several weak illuminations photocathode behaves no evident decay and a maximum sensitivity is achieved, while under intense illumination the sensitivity of photocathode begin to decrease largely at the first illumination. The calculated performance parameters show that the variation of surface escape probability with illumination times is a direct cause of instability of photocathode. It is also found that under intense illumination peak wavelength is moved towards short-wave and peak response is decreased, which shows that the ability of long-wave response of photocathode is decreased.     

Open Rule-setting System Applied to Conceptual Design of Engines

Open rule-setting method advanced in this paper concentrates on providing designers of engines with a convenient way to express their design innovations and develop the expected prototypes in the early CAD stage, and constitute effective models for the following analysis process of CAE and CAPP. The problems arisen in the process of conceptual design with the traditional experience-based development method are analyzed. Based on those analyses, open rule-setting method is presented and some associated technical problems are discussed. The functional framework of open rule-setting system was built as software engineering methods. The speciality of the engine product as a kind of complex product and the requirement of the engine product based on its structural particularity to rule-setting system are considered carefully. A demonstration is supplied to illustrate how the open rule-setting method enhances the efficiency and quality of the engine conceptual design.     

Design and Implementation of One Missile Visual Simulation System Based on OpenGL

The implementation of a missile＇s visual simulation system is explained that is developed with OpenGL（open graphic library） and the flight path and flight carriage in different stages of the missile are displayed. The establishment problems of the 3D scene are circumstantiated including the construction and redeployment of the model, creation of the virtual scene, setting of the multi-viewports and multi-windows etc. The missile＇s data driver, system flow, the modules and their mutual relations of the missile visual simulation system are discussed. The missile flight simulation results and effect of the scenes are given.     

Research on Linux Network Device Driver

By analyzing the working principle of Linux network device driver, discussing the Linux network driver structure and its key technologies, the general network driver structure and its design methodologies in Linux system are summarized. Through modifying the network device driver of Linux device driver 3rd version snull, c and improving the COW technology, the Zero-Copy technology in Linux （kernel version 2.6.11 ） is implemented. In the end, the success test tells us that the thorough analysis of network device driver is the foundation of many applications, and it also provides a certain improvement to a lot of real applications, even to military application development.     

Dynamic Encryption Technology in Ad-hoc Networks

A new dynamic encryption application in ad-hoc networks is proposed. The advantages of this method are its being able to use the previous ciphertext as a seed of a new encryption process, rendering the encryption process effective in all communication process by continuous dynamic key generation together with synchronization, and its capability to cut back on system bandages to a greater extent, which is valuable for the ad-hoc circumstance. In addition, the rationality and effectiveness of this novel encryption method have been verified by the test results.     

An Experimental Study on Electro Chemical Machining of Microelectrode

Puts forward a new method in machining microelectrode by electro chemical machining （ECM） and plastic deformed theory. The procedure of this method is to machine the microelectrode according to the basic rule of ECM theory at first. Then, with the change of ECM machining parameters, one of the microelectrode ends is exerted by a load. As a result, the elastic and plastic deformation is produced at the machining section and the microelectrode diameter is reduced. It has been proved that the proposed method can determine the optimum machining parameters to machine the microelectrode of Cu.     

Unscented Kalman Filter for Autonomous Warship Attitude Determination

To address a problem of autonomous attitude determination algorithm using gravitational field and geomagnetic field observation, a new recursive optimization autonomous attitude estimation algorithm is proposed. The algorithm is based on unscented Kalman fiher(UKF), and can synchronously provide the attitude rate information. The simulated results show that the measurement precision of the method could be increased by 2 times compared to that of the common methods.     

Error Coefficient Estimation of Inertial Platformin Its Calibration

The error coefficient estimation of inertial platform in the course of its consecutive ground calibration is studiedA separate-bias algorithm is adopted to estimate the error parameters effectively. The ill-conditioning problem of the equation solution caused by the huge state dimension is also resolved. And the simulation result shows its validity.