23 research outputs found

    Measurement and control software for vehicle cooling system based on 3-access architecture

    Get PDF
    针对车辆冷却系统测控试验平台中的数据实时采集和电机控制问题,利用三层架构的开发思想,基于C#语言、Measurement Studio控件以及SQL Server数据库,在上位机中结合数据采集卡和传感器等硬件设计开发了车辆冷却系统的测控软件。详细介绍了三层架构的数据访问层、业务逻辑层、表示层在测控程序中的具体实现过程,完成了对测控数据的实时采集、存储与处理,绘制了测控数据实时曲线和历史曲线,以及实现了对风扇电机和水泵电机的控制等功能。同时,利用多次实验对测控程序的可靠性及稳定性进行了测试。实验结果表明,基于三层架构框架指导开发的软件具有更好的可读性、维护性和扩展性,满足车辆冷却系统试验平台的测控要求。Aiming at the problem of real-time data acquisition and motor control for vehicle cooling system test-bed,using the development thought of 3-access architecture,the measurement and control software of the vehicle cooling system was designed and developed by C #,Measurement Studio control and SQL Server database based on the hardware of data acquisition card and sensor in the host computer. The realization process of 3-access architecture of DAL,BLL and UI were introduced in detail in the measurement and control program,it finished real-time acquisition,storage and processing of measurement and control data,real-time curves and history curves,fan motor control and water pump motor control,and other functions. At the same time,the reliability and stability of the program were tested by several experiments.The results indicate that the software can improve the readability,maintainability and expansibility of the program,and meet the requirements of measurement and control based on 3-access architecture.福建省自然科学基金资助项目(2014J01210);; 深圳市科技计划项目(JCYJ20140417162429675

    Research and Optimization Design on Plateau Cooling System of Construction Machinery

    No full text
    随着西部大开发战略的进一步深化和丝绸之路的重新提出,汽车和工程机械等车辆设备都将在西部地区进一步蓬勃发展。然而西部地区特有的高原环境阻碍了车辆设备的高效工作,甚至影响了车辆设备的正常运行。最主要的一个原因就是因海拔引起的空气密度和压力变小,导致同等散热条件下的冷却能力不足,发动机出口水温过高。同时还因为海拔的变化导致了冷却液的沸腾温度降低,使得发动机冷却系统极易出现炸锅现象,产生了极大的危害。因此,本文通过对高原冷却系统异于平原环境的热物理关系和工作机理的探索,以及对散热系统的影响要素及其敏感特性分析,借以揭示了高原型车辆的传热规律及设计准则,进而实现对不同海拔和高原地区的冷却系统重新设计及其...With the further development of the western development strategy and the Silk Road re-proposed, automotive and construction machinery and other vehicle equipment will be further flourishing in the western region. However, the unique plateau environment in the western region hinders the efficient operation of vehicle equipment and even affects the normal operation of vehicle equipment. The main rea...学位:工学硕士院系专业:航空航天学院_机械设计及理论学号:1992014115288

    Underwater cable retracting mechanism

    No full text
    本发明公开一种水下缆绳收放机构,它由缆绳、回收装置及释放装置组成,其中回收装置和释放装置组成本发明的主体;缆绳一端穿过释放装置后缠绕在回收装置内部。本发明能保证缆绳在水下环境中有序、整齐、密实地排列在缆绳储存空间,且能够避免缆绳由于水流的冲击而在收放过程中相互缠绕,还可以在减小缆绳张力变化和缓解缆绳对收放机构的冲击

    Underwater cable retracting mechanism

    No full text
    本发明公开一种水下缆绳收放机构,它由缆绳、回收装置及释放装置组成,其中回收装置和释放装置组成本发明的主体;缆绳一端穿过释放装置后缠绕在回收装置内部。本发明能保证缆绳在水下环境中有序、整齐、密实地排列在缆绳储存空间,且能够避免缆绳由于水流的冲击而在收放过程中相互缠绕,还可以在减小缆绳张力变化和缓解缆绳对收放机构的冲击

    Underwater cable retracting mechanism

    No full text
    本实用新型公开一种水下缆绳收放机构,它由缆绳、回收装置及释放装置组成,其中回收装置和释放装置组成本实用新型的主体;缆绳一端穿过释放装置后缠绕在回收装置内部。本实用新型能保证缆绳在水下环境中有序、整齐、密实地排列在缆绳储存空间,且能够避免缆绳由于水流的冲击而在收放过程中相互缠绕,还可以在减小缆绳张力变化和缓解缆绳对收放机构的冲击

    Water gas mixture and underwater plankton sampler

    No full text
    本发明公开一种水气混合物及水下浮游微生物采样器,它由换位装置、启闭装置、贮存罐三部分组成,其中换位装置、启闭装置分别与载体安装为一体,贮存罐镶嵌在换位装置内部,于启闭装置下方。本发明是能够对水下水气混合物、热液硫化物、微悬浮体、水下浮游微生物及沉淀物进行取样的水下取样工具,采用本发明可以无压力突变采样,保持样品温度和压力,防止采样空间边界扰动,可以对样品起到保真效果,使得分析数据能更准确地反映样品的原始成份与状态,它集样品采集、贮存功能于一体,在同一采样空间可以样品进行多次采样

    光纤水密穿壁件

    No full text
    本发明属于水下光纤传输领域,具体地说是一种光纤水密穿壁件,包括尾帽、壳体及推杆,其中壳体螺纹连接于耐压舱室壁上、并与所述耐压舱室壁密封抵接,所述壳体内部开有供光纤穿入的通道,该通道的一侧填充有固定光纤及承受外部环境海水作用于光纤上轴向力的密封填充体A,另一侧容置有填充体B;所述壳体位于耐压舱室内的一端螺纹连接有尾帽,位于耐压舱室外的另一端螺纹连接有推杆,所述推杆通过填充体B对光纤施加向耐压舱室内的轴向力,并通过所述填充体B的弹性形变实现壳体内所述通道的密封。本发明具有结构简单,拆装方便,密封性能好,成本低等特点

    一种水下光缆穿壁密封结构

    No full text
    本发明涉及一种水下光缆穿壁密封结构,用于浅海环境通信光缆的快速接驳密封,过渡套的一端与接线盒密封连接,另一端连接有尾盘,穿壁套密封连接于过渡套内,一端内部容置有密封塞、且螺纹连接有密封螺套,另一端由尾盖穿出、且螺纹连接有压紧螺套,压紧螺套内容置有密封塞、且螺纹连接有密封螺套;穿壁套内容置有压紧楔,压紧楔位于压紧螺套与穿壁套一端之间;压紧楔通过压紧螺套的旋入箍紧内层光缆,压紧螺套内的密封塞及穿壁套一端内的密封塞分别通过各自螺纹连接的密封螺套的旋入与内层光缆密封抵接。本发明具有快速安装、结构尺寸小的特点,能够满足受限空间的水下光缆接续要求

    Study the ways to deal with oil spill accident deepwater ship by combination of ROV and diver

    No full text
    以深水沉船溢油事故的处置为背景,着重介绍现有的处置作业技术和流程,并分析水下溢油事故处置作业的关键技术及难点,提出了一种水下机器人和潜水员联合处理沉船存油的方法

    Performance Analysis of Different Radiator Fins at Various Altitudes

    No full text
    为研究海拔对车辆散热器翅片性能的影响,编写了基于Matlab的管带式散热器计算程序,在验证仿真程序正确的基础上,分别计算不同热物理条件下百叶窗翅; 片、平直翅片、波纹翅片、锯齿翅片4种常见翅片散热器在不同海拔地区的空气侧和水侧出口温度、空气侧压降、空气侧换热系数、散热量等参数;分析了海拔变化; 对不同翅片散热器散热能力的影响,对比了不同翅片散热器在变海拔下的散热特性和风阻特性.由综合换热系数可知,百叶窗翅片的散热能力最强,锯齿形翅片的海; 拔适应性最好.In order to reveal the effect of altitude on the performance of vehicle; radiator fins,the simulation program for tubular radiator is developed; in Matlab environment. After verifying the correctness of the simulation; program, the air-side and water-side outlet temperatures,the air-side; pressure drop,the air-side heat transfer coefficient and the heat; dissipation of radiators with four common fins (namely; louver,straight,wavy and serrated fins) are calculated under different; thermal physical conditions at different altitudes. Then,the cooling; capacity of different radiator fins are analyzed under the influence of; various altitudes,and the heat transfer performance as well as the wind; resistance performance of different radiator fins at various altitudes; are analyzed in a comparative way. It is found from the obtained; comprehensive heat transfer coefficient that louver fin is of the; strongest cooling capacity, while serrated fin is of the best; adaptability to altitude.福建省自然科学基金资助项目; 深圳市科技计划项
    corecore