液压伺服系统设计指南VALVE SIZING AND PERFORMANCE ESTIMATION

江苏谷乐液压

1.0    OVERVIEW    1.1 Valve Sizing and  Performance issues    1.2 Spreadsheet  Applicability    1.3 Conventions

1.4   Spreadsheet

2.0    USING THE  SPREADSHEET

2.1 Data Entry

2.2  Spreadsheet Section 1 – ‘Cylinder and Pressure Supply Details’    2.3  Spreadsheet Section2 – ‘Valve Details’    2.4  Spreadsheet Section 4 – ‘Cylinder Drive Sizing Results’    2.5  Spreadsheet Section 3 – ‘Load and Pipe Details’

2.6  Spreadsheet Section 5 – ‘ Cylinder Drive Position Control Results’

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3.0    SUMMARY OF SERVO DESIGN GOOD PRACTICE

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4.0    SPREADSHEET APPLICATION EXAMPLE    4.1 Application  (Spreadsheet Default) Details    4.2 Selecting Supply  Pressure and Actuator Size    4.3 Valve Sizing    4.4 Mass and Pipeline  Considerations    4.5 Closed Loop Position  Performance

5.0    SIZING AND PERFORMANCE ESTIMATION BY  MANUAL CALCUALTION    5.1 Component Sizing    5.2 Rules of Thumb for  Position Control Performance

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6.0    OTHER OPERATING CONFIGURATIONS    6.1 Cylinder Effective  Mass Calculations    6.2 Three Port Operation    6.3 Pressure Control  Applications    6.4 Digital Controller  Calculations

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* {4 o. X* E0 c' Y8 j 6 k6 @' Z; ^  D* ^8 V Valve sizing and  performance estimation for electrohydraulic servo systems is a necessary    step if the  required performance is to be assured. On some occasions the valve itself    provides a  natural limit to performance, either in terms of maximum flow rates and  therefore    actuator  velocities, or else in terms of the dynamic performance (as described by the  valve    frequency  response). In the later case the valve performance limits the control gain  and  so    also the closed  loop dynamic behaviour and static accuracy.

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In other situations the  characteristics of

the actuator and  load being driven    provide a limit  to the closed loop    performance which  will not be improved    even with the  fastest, highest flowing or    most accurate of  servo valves.

Separating these  things out and

optimising  performance but without over    specifying the  valve is not always    obvious, and  generally requires a number    of calculations  to be undertaken. In this    Application Note  a spreadsheet is used    for this purpose.  A minimal amount of    data entry is  required from which the    maximum drive  capabilities and closed    loop static and  dynamic performance is    estimated.

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鸿鹄重工

这是MOOG在1999年出的一个选型计算的文档，还挺不错的，值得认真看看

trenxim123

伺服还用不上，可以看看学习一下

~心诚~

一分价钱一分货啊，贵有他贵的道理

江苏谷乐液压

就是太贵，伺服阀G761都快一万八，伺服液压系统造价比较高，还得配伺服运动控制器，伺服油缸，磁致位移传感器。

只有快乐

moog的东西在伺服领域还是很牛啊，资料也很好，留下来慢慢研读。

江苏谷乐液压

a118376

这么专业的资料，我看看

liangquan6

嗯，是MOOG的一个技术文档，讲 电液伺服控制 设计问题

liangquan6

这么专业的资料，我看看！