Development of Solid Rocket Motor for Manned Launch Vehicle Escape System

The solid rocket motors for the escape system of China’s LM-2 F manned launch vehicle are described,the key technologies and technical innovations utilized are summarized.The technical features and development of foreign manned launch abort systems are also presented.The development trends of the solid rocket motor for future Chinese manned launch vehicle escape systems are proposed,which can provide a reference for the future development of manned launch vehicle escape systems.

Autonomous Vehicle Technologies Effects the Automotive Concept Design Stages with AHP Method

In the automotive concept design stages, functionally positioning the newly introduced autonomous technologies or remodelling the vehicle accordingly and evaluating the steps or determining the workload together with the collaboration intensity in the current flow is the initial step for the entire process efficiency. Therefore, the main purpose of the research is to reveal the effects of the autonomous technologies, which are newly included in the automotive concept design stages in automotive manufacturing industry companies that continue their lives under heavy competition conditions, according to the order of importance. The objective of this research is to both increase the efficiency of automotive concept design stages and to determine the measurement of the effects of new autonomous vehicle technologies in practice. Under the AHP method used in the research, the automotive concept design stages constitute the alternatives in the order of importance of the working structure, as well as the application variables of autonomous vehicle technologies, the criteria of the mathematical model. In addition, the research method modelled in the study, under the AHP mathematical model, reveals the performances or order of importance of the automotive concept design stages under autonomous technologies. Therefore, the resulting process performances constitute important inputs for efficiency and optimization studies under different research approaches. When the results of the study are examined, due to the high level of influence on the new vehicle concept design performance in automotive industry companies, the adaptation or application steps of autonomous vehicle technologies create new needs in the whole process. The determination of innovation creation clusters in the design process steps or the selection of the density of new technology adaptation in the stages and the order of importance provide a competitive advantage along with optimization in the basic functions of the automotive industry companies. However, the determination of new workload clusters in the mentioned automotive concept design process steps or the effect of autonomous technologies in the design stages, selection, transfer from theory to practice, multiple conflicting criteria and uncertain parameters create a very complex situation. For all these reasons, the Analytical Hierarchy Process (AHP), which is one of the widely used multi-criteria decision-making tools, is considered as a suitable approach for creating such order of importance and solving problems. In this study, an AHP mathematical model was created that determines the workload clusters created by autonomous vehicle technology applications that have just begun to guide the automotive concept design process, which is the main function of automotive manufacturing industry companies. Therefore, in line with the innovations, changes and adequacy criteria created by the current automotive concept design stages in the new autonomous vehicle technology adaptation, a stage order of importance has been selected.

New Autonomous Vehicle Technologies Effect on Automotive Concept Design Stages

New road transportation systems solutions create significant changes in existing automotive manufacturing industry products and technologies, from design to use. The conveniences within the framework of new approaches brought by autonomous vehicle technologies primarily make individuals transition from driver duty to passenger and high-comfort alternative travel technologies. Therefore, the research: defining the path followed by the autonomous vehicle technologies, which lead to the development of the said new life model and automotive products within the future fiction, in the stages of designing new concept vehicles in practice or measuring the effect on the processes constitute important values for the future prediction of this sector. In addition, the research has focused on the effects of interdisciplinary studies at the automotive concept design stages, which are at the beginning of today’s lean and new product development process, where innovation goals or technologies emerge with more concrete needs. New autonomous vehicle technologies and the main purpose of revealing the interdisciplinary studies created by new disciplines in the current automotive concept design stages make significant contributions to the optimization of the lean product development process and value creation. For this reason, the automotive manufacturing industry, which is on the eve of a major transformation with the said new autonomous vehicle technologies;determining the needs or sustainable position in the flow of digital perception and orientation systems;determining value creation criteria related to the functioning of automotive concept design processes or new acceptance criteria through one-on-one interviews in the field;constitutes the focus of the research. The research has examined the new interdisciplinary studies and effects of new autonomous vehicle technologies in the automotive concept design phase, which is the first step of lean product development, with local and global automotive industry company comparisons in operation. Therefore, the differences and similarities between the concept design stages of global automotive companies that are both co-developers of new autonomous vehicle technologies and manufacturing automotive products and local automotive manufacturing companies that only assemble them determine the future competitive structuring of the industry.

Application of unmanned underwater vehicles in polar research

The importance of polar ice as vital components of the global ocean-climate system is widely recognized.In this paper,we demonstrate the importance and urgency of polar research,describe the primary characteristics of sea ice and ice shelves,and outline the current status and difficulties associated with sub-ice research.We highlight the importance of Unmanned Underwater Vehicles(UUVs)as important tools for oceanographic research.We present recent progress in UUV deployment in sub-ice research in the Arctic and the Antarctic,and review the latest international developments in UUV structure,navigation,payload,and field operation.Moreover,Chinese polar UUVs and their deployments in the polar regions are presented in detail.Key technologies and solutions regarding polar application of UUVs(e.g.,sub-ice navigation and positioning,energy supply and data transmission,and sub-ice guidance and recovery)are discussed.Given the current worldwide attention on polar science,the potential future directions of UUV-related polar research(e.g.,observations under Antarctic ice shelves,long-range surveys beneath Arctic sea ice and application of intelligent technology)are discussed.

Automated Autonomous Vehicles: Prospects and Impacts on Society

All automobile manufacturing companies, Google and Microsoft have announced recently their production of the Fully Automated Autonomous Vehicles (FAAVs), otherwise known as driverless cars. A few FAAVs would be available in the market as early as in 2018, but mostly in 2020’s. When FAAVs will be available to and become affordable by the average consumers, the implications to the society would be far reaching. The purpose of the paper is to examine the prospect of the popularity of FAAVs and their socio-economic implications to the future society of the World. The paper examines potential impacts on selected sectors of the society including changes in demand for automobiles, its impact on the use of oil, on the environment, and on urban land uses, to list a few.

江苏省重点营运车辆技术管理现状研究

近年来,江苏省内发生多起道路运输事故。调查表明,事故发生与涉事车辆的安全技术状况均有一定的直接关系。因此,对于交通运输管理部门来说,加强道路运输企业安全监管,督促企业认真执行道路运输车辆技术管理各项标准、规范和制度就显得尤为重要。本文从车辆技术状况抽检情况、车辆检验检测信息系统应用情况、事故发生与车辆技术状况抽检对比分析、车辆技术状况管理情况四个方面对2021年度江苏省车辆技术检测情况进行分析,归纳出车辆技术状况检测与管理中存在的主要问题,并提出相应的管理措施和发展建议。

基于动态模拟技术的混动车辆发动机电控单元检测系统设计

电控单元是混动车辆发动机中的重要组成部分,对于发动机以及混动车辆的行驶性能产生直接影响,为保证电控单元的运行正常,利用动态模拟技术,优化设计了混动车辆发动机电控单元检测系统;改装温度、转速等传感器设备以及信号处理器设备,调整系统电路的连接方式,实现硬件系统的优化;利用动态模拟技术模拟混动车辆发动机电控过程,结合不同故障类型下电控单元的运行特征,设置系统的检测标准;采集电控单元输出信号,从时域和频域两个方面提取信号特征,最终通过特征匹配确定电控单元状态、故障类型以及故障位置,实现系统的电控单元检测功能;综合混动车辆发动机的3种运行场景,通过系统测试实验得出结论:与传统检测系统相比,优化设计系统的漏检率和误检率分别降低了2.59%和2.05%,由此证明优化设计系统具有良好的检测功能。

新能源汽车动力电池产业发展特点与趋势分析

文章通过研究和分析我国新能源汽车动力电池产业的发展特点及其发展趋势,讨论了产业链协同发展、新型电池技术的发展和应用、电池回收利用技术和产业链不完善等问题。提出了新能源汽车动力电池产业未来的政府在制定政策上的建言和未来发展建议。

海上垂直回收运载火箭发展现状与关键技术分析

运载火箭的可回收重复使用不但可以降低发射成本,而且能提高发射密度,满足高密度发射需求,是人类向太空探索必须发展的技术。垂直返回海上回收方式具备高精度、高稳定落点,减小了对落区人民的安全威胁,同时也减小了火箭运载能力不足的影响。随着“猎鹰9”火箭子级成功实现了海上垂直回收并多次重复使用,引发了各国研究者对火箭子级海上垂直回收技术的重视与探索。首先,阐述了海上垂直回收运载火箭的优势与特点,其次,梳理了海上垂直回收运载火箭的发展现状,再次,根据海上回收火箭的几个阶段分析了其过程中包含的关键技术;最后,总结了海上垂直回收运载火箭的发展趋势。

动物源性食品安全检测技术探析

该文对动物源性食品安全检测技术进行了探析,主要从目前常用的技术手段、存在的问题以及未来发展方向等方面进行研究和分析。研究发现,传统的检测方法在速度、准确性和效率等方面存在一定的局限性。发展基于分子生物学、光学和化学等新兴技术的检测手段成为未来的发展趋势。旨在提供一些有关动物源性食品安全检测技术的参考,以便相关机构和研究者进一步提高食品安全水平。

ICG IDM情况介绍及卫星导航干扰检测定位技术发展分析

GNSS广泛地应用于各行各业,但是存在卫星导航信号落地功率低,极易受到各种有意和无意的电磁干扰影响,会对卫星导航应用造成严重的威胁.随着卫星导航的广泛应用,卫星导航信号受干扰问题引起了国际的广泛关注.全球卫星导航系统国际委员会(International Committee on Global Navigation Satellite Systems,ICG)为此成立了专门的卫星导航干扰检测与削弱(IDM)工作组,旨在开展各国在该领域的政策法规、相关技术及IDM系统建设的研讨与交流.本文介绍和分析了ICG IDM的重要进展及研究态势,并对干扰检测定位理论技术及国内外卫星导航干扰监测系统的研究进展进行了梳理,对深化卫星导航干扰监测的理论与技术研究及保障卫星导航安全具有重要的技术借鉴与研究支撑.

职业院校新能源汽车技术专业人才培养模式研究

在全球资源紧张、环境污染严重的大背景下,社会不断倡导节能减排。新能源汽车受到社会民众的青睐。由于新能源汽车产业发展时间较短,对人才需求量也越来越大。职业院主要培养技术技能人才,对推动产业升级和经济发展有着重要作用。目前在职业院校中对新能源汽车技术专业人才培养还在不断探索。文章分析了目前对新能源汽车技术专业人才培养的必要性,梳理新能源汽车技术专业人才培养存在问题以及提出五项人才培养改革路径。

超深井溢漏监测装备、压井技术进展及思考

随着勘探开发走向超深层,工程作业面临的井控风险日益突出,钻井过程中溢漏风险、压井难度增大,如何及时发现溢漏和提高压井的成功率是急需解决的现场问题。文章调研了超深井钻井溢漏监测装备、压井技术的研究进展,阐述了大排量出口流量精确监测技术、起下钻自动灌浆及溢漏监测技术、环空液面连续监测技术、循环罐体积数字化监测技术等溢漏监测井控装备的研发现状,以及压井理论、压井工艺技术在超深井的研究进展情况。分析了人工智能钻井溢漏预警系统、井下溢漏早期精确监测技术、自动及智能化压井技术等领域的未来发展趋势。总结了井下—地面的钻井全过程溢漏监测装备、基于多源数据融合的溢漏预警软件和复杂井况压井模拟系统技术发展情况,提升了溢漏监测的及时性和准确性,提高了复杂井况压井成功率,为超深井井控安全提供技术保障。

高端航天器连接状态检测技术研究进展

航天飞行器向高性能发展是目前的主流需求,而连接状态退化是高端航天飞器高性能运行的“潜在威胁”,连接状态检测技术是保障航天器高性能运行的“监护保险”。综述了高端航天器连接状态检测技术的最新研究进展,旨在保障航天器的高性能运行与安全性。首先阐述了航天器连接状态检测的重要性,指出其作为确保航天飞行器高效运行的关键“保障措施”,接着从螺栓预紧力检测和接触界面状态检测两个方面,详细分析了国内外在该领域的研究现状与方法,揭示了高端航天器连接状态检测技术理论与方法所面对的挑战,并探讨了应对这些挑战的解决途径和发展趋势。为航天器连接状态检测技术的进一步发展提供了理论基础与实践指导。

基于电子诊断技术的新能源汽车检测与维修技术研究

深入研究了基于电子诊断技术的新能源汽车检测与维修技术,通过综合分析车载电子系统的特点以及新能源汽车电动驱动、能源管理等核心技术,构建了一套全面而系统的检测与维修框架。在诊断方面,探讨了电池管理系统、电动机控制单元等关键部件的在线监测与故障诊断方法,提出了一种高效的故障定位策略,为提高新能源汽车故障处理效率提供了理论支持。在维修方面,采用智能化的维修工具,结合车辆网络通信技术,实现了对新能源汽车的远程维护与升级。通过实际案例分析,验证了研究成果在实际应用中的可行性和有效性,不仅对新能源汽车行业具有指导意义,也为电子诊断技术在汽车检测与维修领域的推广提供了有力的支持。

新能源汽车技术发展对汽车检修行业的影响研究

新能源汽车以其环保、节能、高效的优势,在全球范围内得到快速推广和应用。与传统燃油汽车相比,新能源汽车在动力系统、电控系统等方面具有显著差异,对汽车检修行业提出了新的要求和挑战。本文在分析新能源汽车技术特点及其发展现状的基础上,重点探讨了新能源汽车技术对汽车检修工艺、设备和人员技能等方面的影响。本文提出汽车检修行业应加强新能源汽车技术培训、加大检修设备投入、优化检修流程、建立产学研合作机制等应对策略,以适应新能源汽车技术发展的需要,实现行业转型升级和可持续发展。

绿色发展理念下新能源汽车电机控制技术及其性能优化策略

新能源汽车的出现与快速发展,改善了交通系统运行而产生的环境污染问题,同时也使人们对不可再生能源的依赖性不断降低。目前,新能源汽车的发展前景较为广阔,但总体上面临着续航里程短的问题,因此,这对新能源汽车的电机及其控制系统提出了较高要求。新能源汽车开发过程中,相关人员亟须应用高性能的电机控制手段,通过有效控制,优化新能源汽车及电机系统的整体性能。本文立足绿色发展的视角,围绕新能源汽车电机控制技术及其性能优化进行分析,提出适当策略,以供参考。

新能源环卫车电机技术发展现状与趋势研究

为支持和推动新能源汽车的发展,中国公共领域车辆全面电动化是当前行业的热点话题。文章以新能源环卫车行业为切入点,介绍驱动电机的关键技术,重点分析新能源环卫车驱动电机的现状以及未来的技术创新与发展趋势,对行业发展起到一定参考作用。

中国新能源汽车发展现状及对策建议

随着传统燃油汽车数量的增多,环境污染问题愈发严重。现阶段,发展新能源汽车产业成为各个国家的共识。文章首先介绍了新能源汽车的分类;其次列举了新能源汽车方面的国家政策,从新能源汽车销售量和上险量两个方面阐述了国内新能源汽车的产业发展现状;紧接着对新能源汽车发展过程中存在的问题进行分析,指出新能源汽车存在售价和使用成本高、续航里程不足、安全性不足、企业核心技术缺乏等问题;最后提出建议促进了新能源汽车产业的高质量高效率发展。

智能电动汽车的线控制动新技术应用与发展

随着制动控制技术的发展,制动系统线控化成为了该领域的关键技术路线。在智能电动汽车建立的新电子电气架构下,线控制动系统可以实现更多的新技术功能。线控制动系统将会是智能电动汽车线控底盘的技术核心,以及汽车行业新的研究热点。文章概述了汽车制动系统的发展;对两种典型的线控制动系统的结构特点、工作原理、系统性能进行了分析;结合智能电动汽车对线控制动系统的技术要求,介绍了几种线控制动系统新技术的特点与应用;最后展望了线控制动系统的技术研究趋势,为未来线控制动系统的发展方向提供参考。