航天器测试语言及其运行平台研究

针对测试序列自动执行程度低影响航天器测试效率的问题,提出了一种可控制流程的 高级语言形式的新型航天器测试语言（STL）,并对其语言执行机构进行研究,设计并实现 了基于插件技术的以解释器为核心的集成开发环境——航天器测试语言运行平台。实践表 明航天器测试语言具有较强的通用性与实用性,该语言运行平台能够有效降低航天器地面测 试强度,节约测试成本,提高测试效率。
     

航天器测试控制语言设计与实现方法研究

提出以航天器测试系统监控管理软件为运行环境的结构化航天器测试控制语言的语句定义和采用专用编译器、解释器实现的一种方法,可作为研制测试语言和在测试系统监控管理运行软件环境中增强测试序列管理和功能的设计参考。     

调制法测试变频系统群时延的工程实现

文章从群时延的概念出发,详细分析了调制法测试群时延的方法和原理,并重点描述了其在工程上的实际应用。文章的最后给出了调制法和使用网络分析仪测试群时延的比较。     

航天器综合测试技术发展与展望

航天器综合测试技术将面临从传统的基于"实物航天器"的测试技术到基于"实物航天器+数字航天器"的测试技术的转变。文章从航天器综合测试自动化、智能化、数字化需求出发,以测试技术发展为主线,以测试基本原理方法为重点,从航天器综合测试技术体系架构、测试设计与实施要点、测试技术发展等方面,全面介绍了航天器综合测试技术基本内容与发展趋势。     

卫星控制仿真数据库管理系统软件的自动化测试

介绍了“卫星控制仿真数据库管理系统”软件的自动化测试工作。重点分析了测试脚本生成方法,指出基于记录-回放的测试脚本生成技术的缺陷在于测试脚本与数据及实现细节的耦合。最后,应用基于数据驱动的脚本设计技术和模块化脚本设计思想实现了一个自动化测试脚本框架,解决了测试脚本与数据及实现细节的耦合问题,从而提高了脚本设计质量,降低了脚本维护成本。     

卫星维修性、测试性、保障性的概念解析

针对卫星维修性、测试性和保障性工作中存在的概念不清、内涵不明、工作内容不确定等问题,在维修性、测试性、保障性的通用定义和要求基础上,结合卫星产品特点,分析了卫星维修性、测试性和保障性的概念和内涵,探讨了有关概念间的联系与区别,明确了维修性设计、测试性设计和保障性设计的主要内容。分析表明:卫星维修性设计重点是在轨维修性,兼顾地面需求;卫星测试性和测试、测试覆盖性概念不同但又有关联,卫星测试性设计重点是故障诊断策略和机内测试(BIT)设计;卫星保障性旨在保证在轨连续稳定运行,保障性设计的重点是提高产品可用时间和连续工作时间,降低对保障资源的需求。     

火工品控制电流和潜电流的自动化测试

火工品供电线路一直是火箭可靠性与安全性设计的重点，在控制系统的综合试验中都要对供电电流作专项测试。本文提出了一种替代传统手工测试的自动化测量方案，从软硬件的设计、试验的情况、效率、通用性以及扩展性等几个方面进行了探讨。     

基于系统工程的航天器专业化测试模式探索与实践

综合运用航天系统工程理论与方法,系统识别能力提升要素,从系统层面思考和改进航天器综合测试的管理方法、工作程序及工具手段等。结合航天器研制任务特点,在一定资源、时间和成本约束条件下,开展航天器综合测试流程再造、资源优化配置及组织模式创新等一系列专业化测试模式的探索与实践。针对批产航天器,建立流水线组批测试模式;针对复杂新研航天器,建立专业化集群测试模式。通过构建统一的多航天器自动化测试平台,建立测试用例库、测试流程库和测试故障模式库,推进基于测试用例的一键式自动化测试,实现测试任务的精细分解、测试资源的优化配置、测试风险的精细管控。该专业化测试模式既能确保航天器测试任务的质量与安全,又能解决后续日益增长的高峰测试任务需求与有限测试资源之间的突出矛盾,可供其他工程测试任务参考。     

顺应性理论在汉语广告英译中的应用

论文从Verschueren的顺应性理论出发,阐述了汉语广告英译也是一个不断选择-顺应的过程,并从译文读者的消费心理、英语广告中“顾客至上”的信念、译文读者的消费信息需求、译文预期读者价值取向、译文读者的文化语境、英语广告语言风格文体特色、广告的目的和效果等七方面探讨了顺应性理论在广告英译中的应用。     

某型无人直升机遥控系统BIT技术研究与实现

机内测试 (Built- In Test,简称 BIT)是一种能显著改善系统或设备测试性和诊断能力的重要技术手段。文中研究如何在遥控系统中运用 BIT技术来提高其测试性 ,并提出了一种分层测试方案 ,研究成果已应用于某型无人驾驶直升机 ,满足了遥控系统的测试性要求     

On the stability of the track of the space elevator

A string moving with geostationary angular velocity in its radial relative equilibrium configuration around the Earth, reaching from the surface of the Earth far beyond the geostationary height, could be used as track for an Earth to space elevator. This is an old dream of mankind, originating about 100 years ago in Russia. Besides the question of feasibility from a technological point of view also the question concerning the stability of such a configuration has not yet been completely solved. Under the assumption that a proper material (carbon nanotubes) is available, making the connection possible technologically, we address the question of existence and stability of the radial relative equilibrium of a tapered string on a circular geosynchronous trajectory around the Earth, reaching from the surface of the Earth far beyond the geostationary height.     

On the Possibility of the Existence of Volatile Compounds in the Region of the Scott Crater on the Moon

In this paper, we analyze the illumination conditions, the thermal regime, and the possibility of deposits of volatile compounds existing in the vicinity region (NSR S5 region) near the southern pole of the Moon. It has been found that there are no permanently shadowed zones near the Scott crater and the NSR S5 region, though the temperature conditions allow the of compounds such as CH₃OH, SO₂, NH₃, CO₂, H₂S, C₂H₄, and water to remain stable relative to evaporation for a long time (≥1 Gyr). It has been also shown that compounds like CO and CH₄ cannot stably exist in these regions.     

Estimation of the current density and analysis of the geometry of the current system surrounding the Earth

The results of an investigation of the distribution of plasma pressure, pressure gradients, and magnetic field near the equatorial plane in the plasma ring surrounding the Earth under magneto-quiet conditions are presented. Observational data obtained during the international THEMIS mission are used. The picture of the distribution of transverse-current density near the equatorial plane was obtained under assumption of observing the magnetostatic balance condition at geocentric distances from 6 to 12R _E. In estimating the integral transverse current it was accepted that in daytime sector the magnetic-field minima on magnetic field lines are not localized in the equatorial plane. Estimates of the integral transverse current were obtained, which demonstrate the possibility of closing nighttime transverse currents at geocentric distances of up to ～12R _E inside the magnetosphere, which form a high-latitudinal continuation of the ring current.     

对老年人体育锻炼负荷量监控方法的探讨

通过对老年人体育锻炼活动的情况进行相关调查，发现目前老年人体育锻炼中存在一些误区。因此本文针对这些现实情况提出，应根据实际情况运用一些简单易行的方法来对老年人体育锻炼实施医务监督，达到提高老年人体育锻炼的科学性。     

Estimating the accuracy of the technique of reconstructing the rotational motion of a satellite based on the measurements of its angular velocity and the magnetic field of the Earth

The paper has studied the accuracy of the technique that allows the rotational motion of the Earth artificial satellites (AES) to be reconstructed based on the data of onboard measurements of angular velocity vectors and the strength of the Earth magnetic field (EMF). The technique is based on kinematic equations of the rotational motion of a rigid body. Both types of measurement data collected over some time interval have been processed jointly. The angular velocity measurements have been approximated using convenient formulas, which are substituted into the kinematic differential equations for the quaternion that specifies the transition from the body-fixed coordinate system of a satellite to the inertial coordinate system. Thus obtained equations represent a kinematic model of the rotational motion of a satellite. The solution of these equations, which approximate real motion, has been found by the least-square method from the condition of best fitting between the data of measurements of the EMF strength vector and its calculated values. The accuracy of the technique has been estimated by processing the data obtained from the board of the service module of the International Space Station (ISS). The reconstruction of station motion using the aforementioned technique has been compared with the telemetry data on the actual motion of the station. The technique has allowed us to reconstruct the station motion in the orbital orientation mode with a maximum error less than 0.6° and the turns with a maximal error of less than 1.2°.     

实施“三位一体”教育模式 提高学生的综合素质

本文介绍了“三位一体”教育模式的内容,描述亍我们实施该模式所采取的措施及取得的成效。实践表明,“三位一体”教育模式能够提高学生的综合素质,为学生毕业后的发展打下坚实基础,对教育模式的改革具有一定的指导意义。     

从应变计现状看电阻式传感器的前景

电阻式传感器的核心部件——电阻应变计是目前最常用的应力分析的敏感元件。也常用于测量力、压力、扭矩和加速度等物理量。作者简要回顾了电阻应变计的发展历史，介绍了电阻应变计的结构、分类及现状，展望了电阻式传感器的前景。     

System of works on numerical modeling of the dynamics of the structure of the Space Radiotelescope in the RadioAstron project

The results of modeling the dynamics of the Space Radiotelescope are presented. The results of ground-based vibration-dynamic tests are used to validate the calculation models and estimate the damping levels. The dynamic distortions of the reflecting surface caused by the operation of the pointing mechanism of the high-gain antenna are estimated.     

Optimization of the trajectory of the spacecraft insertion into the system of heliocentric orbits

The possibility of the spacecraft insertion into the system of operational heliocentric orbits has been analyzed. It has been proposed to use a system of several operational heliocentric orbits. On each orbit, the spacecraft makes one or more revolutions around the Sun. These orbits are characterized by a relatively small perihelion radius and relatively high inclination, which allows one to investigate the polar regions of the Sun. The transition of the spacecraft from one orbit to another has been performed using an unpowered gravity assist maneuver near Venus and does not require the cruise propulsion operation. Each maneuver transfers the spacecraft into the sequence of operational heliocentric orbits. We have analyzed several systems of operational heliocentric orbits into which the spacecraft can be inserted by means of the considered transportation system with electric propulsion (EP). The mass of the spacecraft delivered to these systems of operational orbits has been estimated.     

火箭推进剂液体晃动关机响应的数值仿真

本文采用VOF方法对火箭发动机关机阶段所引起的液体晃动进行了数值仿真，以氧化剂贮箱为例，得到了贮箱无阻尼环和带阻尼环时的晃动仿真图和液体质心变化曲线，检验了VOF方法处理碎波的能力。