Abstract: This paper gives some suggestions that we have to implement the scientific concept of development，change the growth mode and drive good innings on good step in the first year of the twelfth five-year-plan.

Key Words: the twelfth five-year-plan； development strategy； concept； innovation

德国汉诺威2011展会观摩报告

张海平

（中国液压气动密封件工业协会，北京 100823）

摘要：本文介绍笔者在汉诺威工业博览会所见的一些液压新产品和感想。

关键词：流体技术；液压；汉诺威工业博览会

中图分类号：T-19 文献标识码：A 文章编号：1008-0813（2011）06-0005-05

Report about Hannover Messe 2011

ZHANG Hai-ping

（China Hydraulics Pneumatics & Seals Association，Beijing 100823，China）

Abstract: This paper introduced some new hydraulic products in Hannover Messe 2011 and ponderation of himself.

Key Words: fluid power； hydraulics； hannover messe

赴美参观2011IFPE展会和考察企业的报告

王长江

（中国液压气动密封件工业协会，北京 100823）

摘要：本文通过赴美参展，叙述了世界液压工业的发展概况和趋势，并结合美国两家液压公司的发展情况提出了我国液压工业发展的对策和建议。

关键词：液压工业；OEM；集成

中图分类号：T-19 文献标识码：A 文章编号：1008-0813（2011）06-0010-02

Report about IFPE 2011 and American Company Investigation

WANG Chang-jiang

（China Hydraulics Pneumatics & Seals Association，Beijing 100823，China）

Abstract: This paper describes the overview and trends of hydraulic industrial development in the world，and proposed industrial development of the hydraulic countermeasures and suggestions with the hydraulic development of two U.S. companies.

Key Words: hydraulic industry； OEM； integration

液压传动的重要发展方向——纯水液压传动

白柳

（山西工程职业技术学院，山西太原 030009）

摘要：纯水液压传动是液压传动的重要发展方向。使用纯水液压传动具有环境友好、成本低廉、污染较小等优越性，但是使用纯水液压传动也存在许多问题，比如密封与润滑、磨损、腐蚀、气蚀等，这些问题限制了纯水液压传动的使用和推广，本文指出了解决纯水液压传动存在问题的研究方向：即进行纯水液压元件的材料选择和元件的结构设计。

关键词：纯水液压传动；矿物油；液压油

中图分类号：V519+3 文献标识码：A 文章编号：1008-0813（2011）06-0012-03

Important Development Direction of Hydraulic：The Pure Water Hydraulic Transmission

BAI Liu

（Shanxi Engineering Vocational College， Taiyuan 030009，China）

Abstract: Hydraulic transmission with purified water is an important development of the hydraulic transmission. Using hydraulic transmission with purified water has the Superiority of friendly environment, low cost, smaller pollution and so on, But Using hydraulic transmission with purified water also exists many problems, such as sealing and lubricating, wearing, corroding, cavitation, etc. These problems limited the use and promotion of hydraulic transmission with purified water. This article points out the research direction of solving the problems which exist in hydraulic transmission with purified water: namely is choosing materials and designing structure of hydraulic components.

Key Words: hydraulic transmission with purified water； mineral oil； hydraulic oil

解读MAG CINCINNATI关于机床用液压油等P系列规格

李万英陈惠卿

（中国石化润滑油公司，北京 100085）

摘要：MAG CINCINNATI为国际知名的机床设备制造商，他们在制造设备的同时，制定了机床用液压油等系列油品规格。本文就MAG CINCINNATI关于机床液压油、液压导轨油、导轨油规格分类、不同规格间的差异、MAG CINCINNATI规格中的关键试验（热稳定性试验）及油品维护等方面内容做了分析，同时对我国某品牌的液压油在MAG CINCINNATI所做的试验结果及试验结果对此规格的符合性做了分析。为机床用户正确选择和使用液压油提供借鉴。

关键词：MAG CINCINNATI;机床;液压油;规格

中图分类号：V519+2 文献标识码：A 文章编号：1008-0813（2011）06-0014-04

Reading the Hydraulic Oil P Series Specification for Machine Tools of MAG CINCINNATI

LI Wan-ying CHEN Hui-qing

（Sinopec lubricate company，Beijing 100085， China）

Abstract: MAG CINCINNATI is one of the most famous machine tools OEM in the world. Besides making the machine tools, they also have the hydraulic oil and way oil specifications for machine tools. This paper tells us the main properties and the key test about the oil and gives some examples about how some brand oils meet the specifications. Moreover, the paper tells the cleanliness code demands for the hydraulic system and the demands about the oil adding and changing in order to help the customers to protect the machines well.

Key Words: MAG CINCINNATI； machine tool； hydraulic oil； specification

中国-东盟自贸区与液压气动密封件企业走进东盟

许宁宁

（中国-东盟商务理事会，北京 100028）

摘要：中国-东盟自贸区于2011年1月1日正式建成，双方经贸关系进入一个崭新的发展阶段，如何抢抓中国—东盟自贸区商机是液压气动密封件企业普遍关注的。本文分析了中国与东盟经贸合作的现状和发展趋势，提出了促进双方行业合作的有关建议，以推动中国液压气动密封件企业走进东盟。

关键词：中国；东盟；自贸区；液压气动密封件；企业；发展

中图分类号：F403 文献标识码：A 文章编号：1008-0813（2011）06-0018-03

China-ASEAN Free Trade Area with the

Hydraulic and Pneumatic Seals Enterprises Entering in ASEAN

XU Ning-ning

（China-ASEAN Business Council， Beijing）

Abstract： The establishment of China-ASEAN Free Trade Area on January 1, 2010 advanced bilateral economic and trade relationship to a new stage of development. How to seize the opportunities of China-ASEAN Free Trade Area is common concern of hydraulic pneumatic seal enterprises. This paper analyzes current situation and development trend of China-ASEAN economic and trade cooperation, and put forward relevant recommendations on bilateral cooperation so as to promote Chinese hydraulic and pneumatic seals enterprises’ development in ASEAN.

Key Words： China; ASEAN; free trade area; hydraulics pneumatics and seals; enterprise; development

电液比例柱塞泵控制仿真分析

石前列吴向东黄贵川

（西南交通大学机械工程学院，四川成都 610031）

摘要：建立电液比例斜盘式轴向变量柱塞泵闭环流量控制系统的数学建模,利用MATLAB/Simulink进行动态仿真，分析系统的响应特性，并在系统中加入PID控制器。仿真结果表明，PID控制器能显著改善系统响应特性。

关键词：PID控制；Simulink；仿真

中图分类号：TP273 TH137.51 文献标识码：A 文章编号：1008-0813（2011）06-0020-03

Simulation Analysis of Electro-hydraulic Proportional Variable Displacement Piston Pump

SHI Qian-lie1 WU Xiang-dong2 HUANG Gui-chuan3

（School of Mechanical Engineering， Southwest Jiaotong University， Chengdu 610031， China）

Abstract: The closed-loop system control model of electro-hydraulic proportional swash-plate axial variable displacement piston pumpis built. By MATLAB/Simulink， analysis the response characteristics of the system, adding PID controller in the system. simulink results show that PID controller can improve the response characteristics of the system evidently.

Key Words: PID control; Simulink; simulation

基于ADAMS柔性模型的轴向柱塞泵动力学仿真

贾旭1 李磊1 王勇1 吴志明1 于兰英2

（1. 西南交通大学机械工程学院，四川成都 610031；

2.普什机电技术研究有限公司，四川成都 611731）

摘要：提出一种基于ADAMS柔性接触碰撞模型的虚拟样机技术来更为准确的分析轴向柱塞泵柱塞等的动力学特性。

关键词：轴向柱塞泵；ADAMS；柔性接触；CFD

中图分类号：TH137.51 文献标识码：A 文章编号：1008-0813（2011）06-0022-03

Dynamic Simulation of Axial Piston Pump Based on ADAMS Flexible Contact-impact

JIA Xu1 LI Lei1 WANG Yong1 WU Zhi-ming1 YU Lan-ying2

（1. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China;

2. Push Mechanic and Electronics Technology Co., Ltd., Chengdu 611731, China）

Abstract： A flexible contact impact model based on ADAMS virtual prototype technology is used to analyze the dynamics characteristics of the axial piston pump, and the more accurate analysis result is obtained.

Key Words： axial piston pump; ADAMS; flexible contact; CFD

基于CFD的液压锥阀动态和静态性能研究

李惟祥刘晓红邓斌

（西南交通大学新型驱动技术中心，四川成都 610031）

摘要：对液压锥阀的内部流场采用CFD（Computational Fluid Dynamics）方法进行数值模拟，通过移动网格技术，研究锥角大小和阀芯圆周直径以及同一调定压力下不同额定流量对锥阀芯静态和动态性能的影响，其次计算了阀口倒角对锥阀性能的影响。结果表明：阀芯圆周直径B值对锥阀动、静态特性有较大影响，当B=15mm时，锥阀的动、静态性能都较好，且对于同一种阀芯结构，随着额定流量的增加，锥阀的静态调压偏差增大，即开启比降低，而合适的阀口倒角长度可以有效提高锥阀的开启比5%左右。

关键词：液压锥阀；静态性能；动态特性；CFD；移动网格

中图分类号：TH137.52 文献标识码：A 文章编号：1008-0813（2011）06-0025-04

Research on Hydraulic Poppet Valve’s Static and Transient Properties Based on CFD

LI Wei-xiang LIU Xiao-hong DENG Bin

（New Drive Technology Center, Southwest Jiaotong University, Chengdu 610031, China）

Abstract: This paper adopts the method of Computational Fluid Dynamics and moving grid to simulate the flow field in hydraulic poppet valve, First, we researched the effects of cone, circumference diameter and also the different rated flow on the poppet valve’s Static and Transient properties, An then, we calculated the influence of chamfer length on poppet valve’s properties. The result shows: The value of circumference diameter has great influence on poppet valve’s Transient and Static properties, when circumference diameter is 15mm, both the Static and Transient properties are better, What’s more, For the identical poppet valve structure, the more rated flow is, the more inferior the Static property is, however, a suitable chamfer length can increase the unlock ratio by about 5%.

Key Words: hydraulic poppet valve； static property； transient property； CFD； moving grid

抢险机器人手臂机液耦合仿真分析

于蓬张为春裴宝浩马兵兵

（山东理工大学交通与车辆工程学院，山东淄博 255049）

摘要：对某抢险机器人手臂驱动液压缸的液压回路进行了设计和简化，在ADAMS中建立机液耦合虚拟样机模型，对一个完整的工况进行了仿真，得到了各组液压缸的长度曲线、运动速度曲线及受力曲线，为液压系统的改进提供了理论依据。

关键词：机器人手臂；虚拟样机；仿真分析；机液耦合

中图分类号：TP241 文献标识码：A 文章编号：1008-0813（2011）06-0029-05

Hydraulic-mechanical Coupling Simulation Analysis of Rescue Robot Arm

YU Peng ZHANG Wei-chun PEI Bao-hao MA Bing-bing

（school of transportation and vehicle engineering，Shandong University of Technology, Zibo China, 255049）

Abstract： Hydraulic loops of the driving cylinders of a rescue robot arm were designed and simplified, hydraulic-mechanical coupling virtual prototyping model was established with ADAMS, simulation about a whole working process was carried out. Cylinder lengths, movement speeds and cylinder forces was obtained. The results can provide theoretical basis for the improvement of the hydraulic system.

Key Words： rescue robot arm; virtual prototype; simulation analysis; hydraulic-mechanical coupling

力矩马达计量阀的研究

渠立鹏周竹俞帅王思民

（中船重工集团第七〇四研究所，上海 200031）

摘要：基于永磁动铁式力矩马达原理，提出了一种新型力矩马达计量阀，由力矩马达直接驱动负载，阐述了力矩马达计量阀的工作原理，结合挡板式节流原理对阀性能及结构进行理论分析，通过试验说明力矩马达计量阀的性能达到了设计要求。

关键词：永磁动铁式;力矩马达;挡板式节流

中图分类号：TH137.5 文献标识码：B 文章编号：1008-0813（2011）06-0033-03

The Design of Momengmotor Metering Valve

QU Li-peng ZHOU Zhu YU Shuai WANG Si-min

（The No.704 Research Institute of China Shipbuilding Industry Corporation, Shanghai 200070，China）

Abstract: Base on the principle of permanent magnet moving iron torque motor，a new momengmotor metering Valve is presented, the motor torque has directly driven the load. Its working principle has been described The performance and structure has been theoretically analysised according to the theory of flapper throttle principle, and the experimental results meet with the design requirements.

Key Words: permanent magnet moving iron； torque motor； flapper throttle principle

基于CFD的锥直喷嘴的过渡圆弧优化分析

刘波吴海何红阳王国涛范磊

（解放军理工大学工程兵工程学院，江苏南京 210007）

摘要：利用计算流体动力学（CFD）的方法对高压磨料水射流系统的喷嘴内外流场进行了两相流的数值模拟。比较分析了不同的过渡圆弧半径对流场的影响。并对可视化的图形图像和计算结果进行了分析研究，结果表明，锥直喷嘴的过渡圆弧半径为80mm左右时流场效果较好。这为喷枪的进一步设计和改造提供了理论依据。

关键词：高压水射流；锥直喷嘴；数值模拟；过渡圆弧半径；耗散率

中图分类号：TH137 文献标识码：A 文章编号：1008-0813（2011）06-0036-03

Simulation of Tapered Spray Gun’s Infulence on Two Phase Flow with Fluent

LIU Bo WU Hai HE Hong-yang WANG Guo-tao FAN Lei

（Engineering Institute of Engineering Corps, PLA Univ.

of Science and Technology，Nanjing 210007，China）

Abstract: Application of CFD in analysis of field flow in nozzle of two phase flow. Contrast Analysis on the diffient flow field in the nozzle with different transitional radius. The visualizing pictures and simulation results were analyzed and researched, and its numerical results show that the character of the flow field in the nozzle which has a transitional radius of 80mm is best. The theory basis was offered for the further design and rebuilding of nozzle.

Key Words: high pressure abrasive water jet; subulate and right nozzle; numerical simulation; transitional radius; dissipation rate

上游泵送机械密封环端面激光加工工艺参数

姚瑞龙冯秀魏龙

（南京化工职业技术学院机械技术系，江苏南京 210048）

摘要：上游泵送机械密封是一种具有环保概念、长寿命、低能耗的高新密封技术，其应用前景将十分广阔。采用Nd:YAG灯泵浦系列脉冲激光进行了上游机械密封端面开槽加工试验，研究了激光加工工艺参数对开槽加工质量的影响。试验研究结果表明，激光电流是影响激光开槽质量的重要因素，对于硬质合金材料，激光电流为14.6A，开槽质量较高，槽深为5.5μm。这为上游泵送机械密封的理论与应用研究奠定一定试验基础。

关键词：机械密封；激光加工；螺旋槽

中图分类号：TB42， TH164 文献标识码：A 文章编号：1008-0813（2011）06-0039-04

Technological Parameters in Laser Cutting Process of Upstream Pumping Mechanical Seal
YAO Rui-long FENG Xiu WEI Long

（Nanjing College of Chemical Technology，Nanjing 210048，China）

Abstract: Upstream pumping mechanical seal is a kind of high-new seal technology, the features of which is the environmental protection concept, long lifetime, low energy consumption, and its application foreground will be very broad. Spiral grooves in end faces of Upstream pumping mechanical seal were processed by Nd:YAG solid laser. Influences of laser parameters on the quality of spiral grooves were analyzed. Experimental results show that the laser current is an important influent factor on the quality of spiral grooves. For Carbide materials, the laser current is 14.6A, the quality of spiral grooves is good, and the depth of spiral grooves is 5.5μm. The research results are helpful for the production and application of the upstream pumping mechanical seal in the industrialization.

Key Words: upstream pumping mechanical seal； laser processing； spiral groove

液压柱塞泵斜盘力矩分析

缪建成1 孙凯2 刘雪波2

（1. 海军驻贵阳地区航空军事代表室，贵州贵阳 550009；2.中航力源液压股份有限公司，贵州贵阳 550018）

摘要：本文针对我厂某型液压柱塞泵在试验过程中出现的全流量压力点前移问题，进行了分析计算。通过对斜盘力矩进行分析计算，并采取有效措施，解决了后续产品全流量压力点前移的问题。

关键词：液压柱塞泵；斜盘；力矩；全流量压力

中图分类号：TH137.51 文献标识码：A 文章编号：1008-0813（2011）06-0043-04

The Analysis of Swash Plate Torque of the Hydraulic Piston Pump

MIAO Jian-cheng1 SUN Kai2 LIU Xue-bo2

（1. The Navy Military Represention department in Guiyang area，Guiyang 550018,China；

2. China Aviatio Liyuan Hydraulic Co., Ltd., Guiyang 550018, China）

Abstract: In this paper, our factory some type of hydraulic piston pump in the experiment appeared in the process of whole flow pressure point forward problems, is analyzed and calculated. Through to the swash plate torque of calculation and analysis, and take effective measures to solve the subsequent product whole flow pressure points ahead of the problem.

Key Words: hydraulic piston pump; swash plate; torque; whole flow pressure

某型艇车装卸液压系统数字仿真研究

杨建峰1 王强2 吴应奎1 冯国勇3

（1．解放军理工大学工程兵工程学院，江苏南京 210007； 2．63602部队，甘肃酒泉 732750）

摘要：本文建立了艇车的动力学模型，运用ADAMS对艇车装卸动作进行了动力学分析，得到了主油缸的时域受力曲线，建立了艇车装卸载液压系统的数学模型，结合实际情况，运用Simulink对系统的动态特性进行了仿真分析，为艇车装卸系统的进一步优化、改进提供了依据。

关键词：艇车；装卸载；液压系统；仿真

中图分类号：TH137.7 文献标识码：A 文章编号：1008-0813（2011）06-0046-04

Digital Simulation for an Autoboat-Truck Loading and Unloading Hydraulic System

YANG Jian-feng WANG Qiang WU Ying-kui FENG Guo-yong

（１．Engineering institute of corps of engineers, PLA Univ. of Sci. and Tech., Nanjing 21007, China; ２．No.63602 Unit of PLA, Jiuquan 732750, China）

Abstract: The dynamic model of an autoboat-truck was built, the dynamic analysis of the autoboat-truck’s loading and unloading mechanism was done by ADAMS, a time domain force curve of the main cylinder was acquired, a mathematical model of the autoboad-truck loading and unloading hydraulic system was constructed. Combining with the actual situation, the dynamic characteristics of the autoboad-truck loading and unloading hydraulic system’s simulation analysis was carried out by Matlab/Simulink. The results provide a theoretical foundation for the optimization design and amelioration of the system.

Key Words: autoboat-truck； loading and unloading； hydraulic system； simulation

运煤车防冻液自动喷洒电液控制系统工作原理分析

张晓刚权龙

（太原理工大学机械电子工程研究所，山西太原 030024）

摘要：为解决冬季精煤运输过程发生冻结、精煤粘结在车厢内壁上造成卸煤困难的问题，需在装车前将防冻液均匀喷洒在列车厢体的内壁及底部，并在精煤进入缓冲仓之际将防冻液喷洒在煤流中，为节约防冻液，要求在两节车厢的间隔处停止喷洒。根据实际工作需求，采用机电液控制方式，由液压系统提供动力源，液压缸驱动大臂控制喷头的升降和回转，采用自动和人工两种控制方式，通过采集车速和输送带煤流重量等状态信息，实现车厢喷洒与缓冲仓煤流喷洒的自动控制，解决了两车厢之间因不停止喷洒而对环境造成污染的问题，节省了人力和大量防冻液，设计和元件选型中，充分考虑了使用环境寒冷、粉尘、湿气大等恶劣条件，使系统可靠工作。

关键词：防冻液；自动喷洒；计量控制

中图分类号：TP273 文献标识码：A 文章编号：1008-0813（2011）06-0050-04

Analysis on Working Principle of Automatic Spray

Electro-Hydraulic Control System of Antifreeze of Coal Train

ZHANG Xiao-gang QUAN Long

（Mechanical and Electrical Engineering Institute of Taiyuan University of Technology，Taiyuan 030024，China）

Abstract: In order to solve troubles during the transportation of fine coals in winter such as freeze and fine coals sticked on the internal walls of compartments, it is necessary to spray antifreeze evenly on the internal wall and bottom of the compartments before coals are loaded on the train and also spray it into fine coal flow while fine coals enter surge bins. In order to save antifreeze, it is required to stop spraying it in the interval between two compartments. In accordance with the accurate working requirement, electro-hydraulic control shall be adopted, hydraulic system shall provide power source, and the lift and rotary of the spray nozzle shall be controlled by the big arm driven by the hydraulic cylinder. Besides, by means of both automatic and manual control methods, the automatic control for the spray of compartments and coal flows in surge bins can be realized, the trouble about the environmental pollution caused by continuous spray between two compartments is solved, and a lot of manpower, antifreeze can be saved through the data like the collected speed of the train and the weight of coal flow on the conveyor etc. Meanwhile, a complete consideration is taken for the application under sever conditions like cold, dust and heavy moisture etc., so that the system can be operated reliably.

Key Words: antifreeze； automatic spray； measurement control

采用开式油路的阀控-变频节能液压电梯研究

杨明松1 涂婷婷2 彭巍1 张勤超3

（1.三峡大学机械与材料学院；2.三峡大学水利与环境学院，湖北宜昌 443002；

3.特变电工衡阳变压器有限公司，湖南衡阳 421007）

摘要：对闭式油路变频节能液压电梯进行了研究与分析，设计出了一种采用开式油路的阀控-变频节能液压电梯系统，并对其节能原理、工作原理和节能特性进行了分析，为液压电梯的进一步研究提供了很好的依据。

关键词：液压电梯；开式油路；阀控；变频；节能

中图分类号：TH137.9 文献标识码：B 文章编号：1008-0813（2011）06-0054-04

Research on Energy-saving for Valve-VVVF

Controlled Hydraulic Elevators with Opened-circuit

YANG Ming-song1 TU Ting-ting2 PENG Wei1 ZHANG Qin-chao3

（1.College of Mechanical & Material, 2.College of Hydraulic & Environmental Engineering，

Three Gorges University, Yichang 443002, China;

3.Tbea Heng Yang Transformer Co.,Ltd.,Hengyang 421007,China）

Abstract: Through the research and analysis of energy-saving for VVVF controlled hydraulic elevators with closed-circuit, the energy-saving for valve-VVVF controlled Hydraulic Elevators with Opened-circuit system was proposed, And described its working principle, principle of energy conservation and energy-saving characteristics., and provided a very good guidance documents in future hydraulic elevator researching.

Key Words: hydraulic elevator; opened-circuit; valve control; VVVF; energy-saving

离心式惯性传感器的结构原理及性能测试

杜来林杨超

（空军第一航空学院，河南信阳 464000）

摘要：本文介绍了离心式惯性传感器的结构及工作原理，并依据离心式惯性传感器的性能要求、技术条件和试验大纲以及部队的实际情况，设计了离心式惯性传感器的测试系统, 该系统采用单片机控制技术实现负角加速度产生及调节，并通过相应的传感器将各种激励信号、测量信号反馈到系统，以形成闭环控制，实现测试精度。

关键词：惯性传感器；结构原理；性能测试；负角加速度

中图分类号：TP273.5 文献标识码：A 文章编号：1008-0813（2011）06-0057-03

Construction Principle and Performance Test of Centrifugal Type Inertial Sensor

DU lai-lin YANG Chao

（The first aviation college of air force，Henan Xinyang 464000，China）

Abstract: Construction principle and performance test of centrifugal type inertial sensor is introduced and its test system is designed based on its performance requirement, technical condition, test program and practical situation of the troop. The test system provides and adjusts negative angular acceleration, and receives drive signals and measurement signals from the corresponding sensors, which form a close-loop control to realize the performance test and raise the test accuracy.

Key Words: inertial sensor； construction principle； performance test； negative angular acceleration

大型风电液力机械传动装置的理论分析

陶曾鲁1 何芳2

（1. 同济大学，上海 200092； 2.中国船舶重工集团公司第七一一研究所，上海 200051）

摘要：本文对大型风电液力机械传动装置的工作原理进行理论分析，介绍了其主要参数的计算方法。

关键词：风电；液力传动装置；行星排；可调液力变矩器

中图分类号：TH137.33 文献标识码：A 文章编号：1008-0813（2011）06-0060-06

Hydrodynamic Mechanical Transmission Theoretical Analysis of Large Wind Power

TAO Zeng-lu1 HE Fang2

（1.Tongji University, Shanghai 200092， China；

2.Shanghai Marine Diesel Engine Research Institute, Shanghai 200051, China）

Abstract： This paper analyzes the principle of the large-scale wind power hydrodynamic and mechanical transmission，and introduces the calculation method of main parameters.

Key Words: wind power； hydrodynamic transmission； planetary line； adjustable torque converter

液压系统实现功率匹配节约能源的途径

赵江平

（中山火炬职业技术学院，广东中山 528436）

摘要：液压传动技术已成为工业机械、工程建筑机械及国防尖端产品不可缺少的重要技术。但由于液压传动系统往往既存在压力损失，又存在流量损失，因此功率损失大、效率低，浪费大量能源。基于对液压系统效率和能耗的分析，提出了液压系统实现功率匹配节约能源的几种途径。

关键词：压力损失；功率匹配；节能

中图分类号：TH137.51 文献标识码：A 文章编号：1008-0813（2011）06-0065-04

Methods for Hydraulic Drive System to Achieve Power Match and Energy Conservation

ZHAO Jiang-ping

（Zhongshan Torch Polytechnic，Zhongshan 528436，China）

Abstract: Hydraulic drive technique has become an indispensible and significant technique for industrial machinery, engineering & construction machinery, and highly sophisticated products of national defense. However, hydraulic drive system has both pressure loss and flow loss, so it causes large power loss, low efficiency and a great deal of energy waste. Based on the analysis of efficiency and energy consumption of hydraulic drive system, this paper proposes several methods for hydraulic drive system to achieve power match and energy conservation.

Key Words: pressure loss； power match； energy conservation

带压堵漏方法在煤电厂的应用

申大勇

（锦州石化公司设备研究所，辽宁锦州121001）

摘要：分析了煤电厂承压部件泄漏的常见原因，同时阐述了带压堵漏的基本原理、常用的带压堵漏方法，并对带压堵漏在煤电厂的应用状况进行了介绍。

关键词：承压部件；压力；带压堵漏；煤电厂

中图分类号：TB42 文献标识码：A 文章编号：1008-0813（2011）06-0069-03

Pressure Seal Method and Its Application to Coal Power Plant

SHEN Da-yong

（Jinzhou Petrochemical Equipment Institute, Jinzhou, Liaoning 121001, China）

Abstract: The leakage of coal power plant components common cause of pressure, Pressure Seal also explained the basic principles, commonly used with Pressure Seal Methods, and Pressure Seal the situation in the coal power plant was introduced.

Key Words: pressure parts； pressure； pressure seal； coal power plants

基于BEM理论的小型风机叶片设计与分析

邱静王国志刘桓龙王勇贾旭

（西南交通大学机械工程学院，四川成都 610031）

摘要：风力发电机叶片是吸收风能并将其转换成机械能的重要部件之一，叶片的翼型、数量和尖速比都直接影响叶片接受风能的效率。本文针对风力发电机的关键部件叶片进行了系统的研究与设计。

关键字：风能；叶片；BEM；攻角

中图分类号：TH322 文献标识码：A 文章编号：1008-0813（2011）06-0071-04

The Research on Small Scale Wind Turbine Blade Based on BEM Theory

QIU Jing WANG Guo-zhi LIU Huan-long WANG Yong JIA Xu

（School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China）

Abstract： The blade of wind turbine is one of the key component which can absorb wind enery and transform it to mechanical energy.And the airfoil,quantity and speed ratio of blade can be affect the power generation efficiency directly.In the article,the authors did a systematic research and design on the blade.

Key Words: wind power; blade; BEM; attack angle


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