最新刊期
期 3 ， 2013
- 摘要：All the interconnection technologies of IGBT module from soldering, bonding and pressure contact were introduced respectively, the development status and technical features of the interconnections were analyzed, and development directions of each interconnection technique were summarized.关键词：IGBT module;interconnection technology;soldering;bonding;pressure contact;railway transportation
- 878
- |
- 8
- |
- 0
发布时间：2021-12-13 - 摘要：Thermal characteristics of press-pack IGBT modules were studied by utilizing three kinds of approaches. The thermal model was constructed, and static thermal resistance was analyzed by computation and finite-element simulation, as well as experimental measuring approach was applied based on the calibration of temperature parameters. Result based above three methods were analyzed and compared.关键词：press-pack IGBT module;thermal characteristics;computation;experimentation;FE simulation
- 745
- |
- 14
- |
- 0
发布时间：2021-12-13 - 摘要：A Remote Input/output Module (RIOM) design proposal for TCN was proposed on the basis of highly reliable VME bus as well as MVB bus, which could achieve the fundamental functions of remote control and communication in train network. Besides, based on the presentation of overall structure and essential parameter, implementation mechanisms of VME slave finite state machine and structure of analog/digital signals communication in TCN was introduced in detail. The design had been validated in a TCN control system, which showed the system satisfy the requirement of TCN.关键词：TCN;RIOM(remote input/output module);VME bus
- 845
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Dynamic performance of HXN5 type diesel locomotive was evaluated, and adaptability of the suspension system parameter and its effect on dynamic performance of HXN5 locomotive was analyzed. Based above, suggestions of suspension parameters optimization were put forward.关键词：HXN5 type diesel locomotive;bogie;suspension system;dynamic performance;parameters optimization
- 758
- |
- 3
- |
- 0
发布时间：2021-12-13 - 摘要：Side-window glass SEA simulation model of electric locomotive cab was built with the noise simulation software VA one, and sound insulation of different-thickness single-layer glass, different-thickness intermediate-air layer hollow glass and laminated glass were analyzed by simulation and test. The simulation results showed that the laminated glass had the best sound insulation effect.关键词：VA one;statistical energy analysis;electric locomotive;glass;sound insulation performance;cab
- 736
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：According to the fault of photoelectric rotating-speed sensor based on TB/T 2760-1999 after locomotive speedup, new technology and material utility of high-speed encoder was adopted for product integral optimized design. Collective structure and main technical specification of the optimized sensor was introduced. Experiment and batch on-board examination proved that the new product had good performance and satisfied the design requirement of every index.关键词：locomotive;photoelectric rotating-speed sensor;photoelectric module;encoder;grating tablets;optimal design
- 1105
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Referring to the standard of metro vehicles gauge and construction of medium-low speed vehicles, vehicle gauge of mediumlow speed maglev vehicle was researched and calculated, reference, providing theory basis to the designing and construction of the line building.关键词：medium-low speed maglev vehicle;vehicle gauge;displacement;vehicle gauge calculation
- 667
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Composing and control requirement of novel electrical control system for EMUs sliding-plug door were introduced, as well as principle and design method of the electrical control system. The novel electrical control system for EMUs sliding-plug door was validated stable and operation well by type test, which adapted high-speed rail application.关键词：EMUs;sliding-plug door;electrical control system;principle;design method
- 649
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Basic parameters and performance requirements were briefed for the electric drive system for straddle-type monorail car with independent intellectual property rights. Also the traction/braking characteristics, performance calculation and line simulation, power circuit structure as well as the design ideas and technical characteristics of the control system were expounded. The vehicle and its electric drive system have passed the field type test and running inspection, which is under trial operation in Chongqing metro line 6 with good situation.关键词：straddle-type monorail car;electric drive system;performance calculation;line simulation;independent intellectual property rights
- 740
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：The straddle-type monorail vehicle was mainly guiding by the steering wheel when it throughing the curve. Therefore, the size of steering wheel’s radial force was an important index to evaluate the curve negotiation performance of monorail vehicle. Simulation model of monorail vehicle based on the multi-body dynamics simulation analysis software-ADAMS was established. Under the condition of orbit radius and super-high no changing and vehicle running with constant speed, radial force characters of steering wheel and its impact on curve negotiation performance of vehicle were analyzed by changing the size of the running wheel’s vertical stiffness. The simulation and analysis showed that running wheel’s vertical stiffness had great influence to vehicle curve negotiation performance.关键词：straddle-type monorail vehicle;vertical stiffness;radial force of steering wheel;curve negotiation performance
- 838
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：According to network application software test cases for train control and diagnosis system of Changsha metro line 2(TCMS of Changsha metro line 2), it was expounded and analyzed for how to generate test cases by using causality diagram test method, which provided reference for other similar software test.
- 750
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Loading project, technology and risk analysis of Shenyang metro line 2 vehicles permanent synchronous motor traction system were introduced, as well as its debugging, test and operation situation. The permanent synchronous motor traction system has the merits of stability and low cost, and has great sense to urban rail transit development.关键词：Shenyang metro line 2;permanent synchronous motor traction system;permanent synchronous motor;test;operation
- 861
- |
- 8
- |
- 0
发布时间：2021-12-13 - 摘要：It was discussed that the aluminum alloy car body’s modular structure, main features and main technology parameters of car body for Zhengzhou metro line 1 project vehicles. With finite element analysis for car body structure static strength, modal, buckling and crashworthiness, the strength, rigidity, stability and crashworthiness of the new designed aluminum alloy drum car body were validated consistent with the requirement of relevant standards and technology specification.关键词：metro vehicle;modular design;finite element analysis;crashworthiness
- 860
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：In order to ensure the safety of train running and meet the demand of train maintenance, a serial-flash-memory based data logging unit was designed. This system could not only gather, analyze and record running data of train speed protection device automatically, but also provide external communication interface for host computer real-time monitoring and data dump. With operation test and field identification, the design was proved satisfying real-time and reliable data recording and status monitoring of speed protection device in harsh environments.关键词：train speed protection device;data logging unit;flash memory;serial communication
- 422
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Vehicle configuration, vehicle technical characteristic and parameter, traction/brake system, bogie and hinge passage of 100% low floor light rail vehicle were introduced. The no-contacted power supply technology in recent years was analyzed, as well as the future development of 100% low floor light rail vehicle technology was previewed.关键词：100% low floor;light rail vehicle;no-contacted power supply;hinge passage;middle volume traffic;urban rail
- 860
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：According to matching characteristic of electric drive system combined testing for rail transit vehicle applied to validate characteristic matching of motor(s), inverter and their control system, combined testing standard IEC 61377 was introduced. Testing project operation and new development of the standard were discussed.关键词：rail transit vehicle;combined testing;electric drive system;IEC 61377
- 835
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Operation principle of high-speed EMUs main converter cooling device was introduced. Heat-transfer character of heat-pipe air-cooling device was studied, and heat dissipating capacity and base-plate temperature range of IGBT cooling device in normal operation were obtained, which provided basis for radiator selection and design.关键词：high-speed EMUs;main converter;IGBT;heat-pipe;temperature;dissipating performance
- 901
- |
- 4
- |
- 0
发布时间：2021-12-13 - 摘要：A new transmission testing device for electric locomotive’s auxiliary converter system was introduced, and structure of electric locomotive’s auxiliary convertor system and its working processes were illustrated. PWM rectifier was used as load unit to regulate inverter output current for implementing various test conditions, current control of which was based on AC voltage orientation theory to realize decoupling control, and voltage-forecasting method was used to improve control system performance.关键词：auxiliary converter system;transmission testing device;PWM rectifier;decoupling control;electric locomotive
- 704
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：According to the problem of EMI source hard positioning in EMI test, a near-field diagnostic test systems was presented with different dimension and type near-field probe to position larger radiation point accurately, which provided a fast and effective positioning method to complete radiation EMI fault diagnostic and guided practical application.关键词：EMC;EMI;near-field testing;diagnostic;fast positioning
- 791
- |
- 3
- |
- 0
发布时间：2021-12-13 - 摘要：Based on the actual motor test engineering applications, self-excitation phenomenon between capacitor of LC filter and rotating asynchronous motor was analyzed when inverter suddenly blocks pulses for frequency control system, as well as methods for suppressing self- excitation were proposed. Simulation and practical applications proved the feasibility of the methods.关键词：frequency control;self- excited phenomtnon;suppressing self-excitation;LC filter;motor test
- 461
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Situation of HX locomotive operation and maintenance was introduced, and overall program of HX locomotive maintenance management information system was proposed. Application architecture, logical architecture, network architecture and technology architecture of the system were introduced in detail, and improving system automation level and locomotive overhaul efficiency by utilizing information sharing method was discussed.关键词：HX locomotive;locomotive maintenance;information system;overall program
- 707
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：In order to solve the problem of high quality periodic data exchange between monitor equipments using backplane P-BUS, the software procedures of dual-port RAM software interface protocols which were used for periodic data were mainly presented. Characteristics of every software interface protocol were also introduced by analyzing each of software interface protocols. The field application of these protocols showed stable performance and high reliability.关键词：monitor epuipment;P-BUS;interface protocol;single page interlock;double-page mutex
- 420
- |
- 2
- |
- 0
发布时间：2021-12-13 - 摘要：Composition of LKJ system and main functions of its basic control software were introduced, as well as the status of software testing for the basic control software. Combined the testing theory of software life cycle, thought of constructing the basic control software testing system was proposed, based on which, a practical LKJ basic control software automatic testing system was developed. The software testing system covered whole software function and lightened amount of testing.关键词：LKJ;basic control software;software testing;testing script;software automatic testing
- 833
- |
- 2
- |
- 0
发布时间：2021-12-13
- Technical support is provided by Beijing Founder electronics co., LTD 湘ICP备20010475号-1
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
0