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ARF-004
Automation, robotics, sensors - 2020

Electric and electro-hydraulic servo-controllers

Basic principles and comparison

OBJECTIVE :

The course will enable learners to become familiar with electric or electro-hydraulic servo-controllers.

COURSE DURATION AND TIMETABLE :

The course lasts 5 days (30 hours) and includes:

  • Lectures
  • Instructor-led exercises
  • Examples of industrial applications
  • Panel discussion with the facilitators

GENERAL APPROACH :

The course aims to provide the basics of theory and practice to engineers who will be required to specify, use and design complex electric and electro-hydraulic power systems. It also includes a recap of the concepts of servo-controllers and related methods (Black Plan, digital integration, FFT). It also offers a comparison between electro-hydraulic systems and electrical systems.

PREREQUISITE :

Course level : Basic

This course is suitable for engineers wishing to improve their skills in the field of electro-hydraulic servo-controllers using power hydraulics and electrical servo-controllers using electromechanical actuators.

A basic knowledge of servo-controller theory is desirable.

COURSE DIRECTOR(S) :

Jérôme SOCHELEAU :

Systems Manager at UTC Aerospace Systems

Yvan CARLIER :

Mechanical Systems and Modeling Technical Manager at UTC Aerospace Systems

CONTENT :

  • Issues
    • Distinction between electro-hydraulic and electrical servo-controllers
    • Distinction between position servo-controllers (95% of cases), speed servo-controllers, force servo-controllers (linear movements) and paired servo-controllers (rotary motions)
  • Basics
    • Recap of the basic principles: a hydraulic motor
    • Recap of the basic principles: electric motorization
    • Recap of the basic concepts: transfer functions, response to standard inputs (level, ramp, sinusoid), graphical and numerical methods
  • Servo-controller methodology
    • Functional schema
    • Determining dynamic performance:
      • The usual criterion (speed/stability compromise)
      • Secondary criteria
      • Graphical linearization methods
      • Digital modeling methods
  • Technological components
    • Block diagrams of hydraulic circuits (source at constant pressure, flow control at the source) and electrical circuits
    • Actuators and components: description and scaling
      • Linear actuators: hydraulic cylinders and electromechanical cylinders
      • Rotary actuators: hydraulic motors and electric motors
      • Flow servo valves, pressure servo valves
      • Mechanical transformation systems of rotary movements into linear movements
      • Electrical motor command and control principles
    • More electric systems: issues and prospects for airliners.
  • Specifications/technical agreements
    • Presentation and exploitation of a standard technical agreement/set of specifications
    • Transposition of data into a force-speed (or torque-speed) loading pattern
  • Research offices/departments
    • Examination of a servo-controller in position in a real command case by both graphical and digital methods
    • Comparative study between an electro-hydraulic servo-controller and an electrical servo-controller on the same case (see specifications/technical agreements)
    • Study of the dynamic behavior of electrical and hydraulic components (examples: self-regulating pump with constant pressure, etc.) by a digital simulation method

WHEN AND WHERE :

Scheduled in French:

PARIS: 16 to 20 november 2020

 

For the English realization, please, consult us.

COURSE FEES :

€2 350 excluding tax (20% VAT)

See general terms

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