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編輯推薦: |
作者2012年在美国访学期间,对液压学科以学以致用为出发点的教学方法、实验内容感受颇深,迫切希望能借其所长助推我国的实验教学水平。2013年开始,大连理工大学在2011协同创新中心、国家质量工程以及校内教改专项的资助下,经过7年的建设,建成了世界*本科教学用流体力学与液压传动实验室。
本书就是在这样的背景下,依托大连理工大学*实验示范中心的软硬件资源开发的实验内容。与此同时,为了更好发挥大学服务社会功能,该实验室还开发了虚实融合的实验方法来应对远程教学,以便更好发挥实验室的软硬件资源向兄弟院校输出的作用。然而,没有想到的是,虚实融合的实验方法竟然在2020年初由于新冠疫情而全面开展的线上教学中发挥了重要作用,圆满完成了课程实验教学任务。
该书是机械学科《流体力学》及《液压传动》课程配套的实验教程,为全英文版本,适用于机械双语及国际班的专业课实验教学。全书主要包含3个经典流体力学实验及11个液压传动实验。实验器材以英国Armfield公司流体力学实验设备及德国Bosch Rexroth公司的DS4和WS290液压传动实验设备及国内的液压元件为载体,同时配以Famic公司的Automa
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內容簡介: |
本书涵盖了流体力学,典型液压元件拆装,工业液压回路,比例及闭环伺服控制回路,工程机械液压中典型的节流回路负载敏感回路和流量分配(LUDV)回路等实验,实验项目中包括实验目的,理论基础,回路或元件安装,实验步骤,实验结果及详细的实验报告。实验结构合理完整,层次清楚,概念准确,结论严谨。
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關於作者: |
张宏,博士,副教授,大连理工大学机械工程学院液压实验室主任。2012.8-2013.8美国普渡大学访学,2017.1-2新西兰奥克兰大学访学。主持和参与国家重点研发计划、国家自然科学基金10余项,国家质量工程教改项目及校级教改项目20余项。获得辽宁省教学成果奖一等奖(排名第一)1项,其他教学成果奖(排名第一)2项。出版专著1部,发表论文30余篇,培养硕士40余人。辽宁省一流课程《虚实融合的液压虚拟仿真实验》教学团队负责人。
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目錄:
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Contents
Lab 1 Reynolds Experiment 1
Objectives 1
Equipment Preparation 1
Principle 1
Equipment Description 3
Part 1 Observing Flow Status 4
Part 2 Determining Reynolds Number 5
Lab 2 Bernoulli''s Experiment 6
Objectives 6
Equipment Preparation 6
Discussion 8
Procedure 9
Lab 3 Fluid Friction 11
Objectives 11
Equipment Preparation 11
Part 1 Fluid Friction in a Smooth Bore Pipe 13
Part 2 Head Loss Due to Pipe Fittings 15
Part 3 Fluid Friction in a Roughened Pipe 17
Part 4 Fluid Friction in an Orifice Plate or Venturi 18
Lab 4 Fluid Power Components and Circuits 21
Objectives 21
Equipment Preparation 21
Software Introduction 21
Procedure 23
Part 1 Recognize the Components on the Workstation 23
Part 2 Familiar with the Symbol of the Components 24
Part 3 Recognize the Circuits 24
Lab 5 Pump Disassembly and Performance 26
Objectives 26
Equipment Preparation 26
Part 1 Pump Disassembly 26
Part 2 Pump Performance 29
Lab 6 Cylinder Circuit Operation 38
Objectives 38
Equipment preparation 38
Discussion 38
Part 1 Normal Cylinder Operation 39
Part 2 Regenerative Cylinder Operation 41
Lab 7 Hydraulic Motor 44
Objectives 44
Equipment Preparation 44
Discussion 44
Procedure 45
Lab 8 Valve Disassembly 48
Objectives 48
Discussion 48
Software Introduction 48
Lab 9 Analysis of Flow Control Valves 50
Objectives 50
Equipment Preparation 50
Discussion 50
Part 1 Throttle Valve 51
Part 2 Speed -regulating Valve 56
Lab 10 Familiar with Hydraulic Circuits 59
Objectives 59
Lab 11 Proportional Control System 60
Objectives 60
Equipment Preparation 60
Discussion 60
Part 1 Working Principle of Proportional Hydraulic Valve 60
Part 2 Characteristic Curve of the Proportional Direction Valve 65
Part 3 PID Control Simulation and Experiment 67
Lab 12 Hydraulic Throttle Control Experiment for Engineering Machinery 76
Objectives 76
Equipment Preparation 76
Principle 77
Preparation 83
Procedure 86
Lab 13 Hydraulic LS Control Experiment for Engineering Machinery 88
Objectives 88
Equipment Preparation 88
Principle 88
Preparation 97
Procedure 100
Lab 14 LUDV Control Experiment for Engineering Machinery 102
Objectives 102
Equipment Preparation 102
Principle 102
Preparation 110
Solution to the Cavitation Phenomenon 110
Procedure 113
Lab Report 115
Lab Report 1 Reynolds Experiment 117
Lab Report 2 Bernoulli''s Experiment 119
Lab Report 3 Fluid Friction 121
Lab Report 4 Fluid Power Components and Circuits 127
Lab Report 5 Pump Disassembly and Performance 131
Lab Report 6 Cylinder Circuit Operation 137
Lab Report 7 Hydraulic Motor 141
Lab Report 8 Valve Disassembly 145
Lab Report 9 Analysis of Flow Control Valves 149
Lab Report 10 Familiar with Hydraulic Circuits 155
Lab Report 11 Proportional Control System 157
Lab Report 12 Hydraulic Throttle Control Experiment for Engineering Machinery 159
Lab Report 13 Hydraulic Load Sensing Control Experiment for Engineering Machinery 161
Lab Report 14 LUDV Control Experiment for Engineering Machinery 163
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