Electro-Hydraulic Actuation Systems

1. Front Matter

   Pages i-xiii

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2. Introduction

   • J. Jaidev Vyas, Balamurugan Gopalsamy, Harshavardhan Joshi

   Pages 1-17

3. Mathematical Modeling of Flapper Nozzle Valve

   • J. Jaidev Vyas, Balamurugan Gopalsamy, Harshavardhan Joshi

   Pages 19-37

4. Servo Valve Characteristic Curves

   • J. Jaidev Vyas, Balamurugan Gopalsamy, Harshavardhan Joshi

   Pages 39-45

5. System Identification

   • J. Jaidev Vyas, Balamurugan Gopalsamy, Harshavardhan Joshi

   Pages 47-51

6. Results and Discussion

   • J. Jaidev Vyas, Balamurugan Gopalsamy, Harshavardhan Joshi

   Pages 53-61

7. Conclusion

   • J. Jaidev Vyas, Balamurugan Gopalsamy, Harshavardhan Joshi

   Pages 63-63

The book serves as a unique integrated platform, which not only describes the design methodology of electro-hydraulic actuation systems but also provides insights into the design of the servo valve, which is the most important component in the system. It presents a step-by-step design process, comparative tables, illustrative figures, and detailed explanations. The book focuses on the design and testing of electro-hydraulic actuation systems, which are increasingly being used in motion control applications, particularly in those where precision actuation at high operational rates is of prime importance. It describes in detail the design philosophy of such high-performance systems, presenting a system used as a physical test setup together with experimental results to corroborate the calculations. Of particular interest are the electro-hydraulic servo valves that form the heart of these actuations. These valves are complex and not much data is available in open literature due to OEM propriety issues. In this context, the book discusses the elaborate mathematical models that have been derived and an approach to validate the mathematical models with test results. Presenting the complex methodology in simple language, it will prove to be a valuable resource for students, researchers, and professional engineers alike.

• Electro-Hydraulic Actuation
• System Design
• Actuation Test System
• Flapper Nozzle Valve
• Mathematical Modeling
• System Identification
• Servo Valve Testing

• Mechanical Systems Design Group, Structures Division, CSIR-National Aerospace Laboratories, Bengaluru, India

  J. Jaidev Vyas

• CSIR-National Aerospace Laboratories, Bengaluru, India

  Balamurugan Gopalsamy, Harshavardhan Joshi

Jaidev Vyas is a Scientist at the Mechanical Systems Design Group in the Structural Technologies Division of the National Aerospace Laboratories-CSIR, Bangalore, India. His research areas include aircraft hydraulic systems, fuel systems, ECS and landing gear. He received his M.Tech. in Thermal Engineering from the National Institute of Technology Warangal, India in 2008.
 
Balamurugan Gopalsamy is a Principal Scientist and Head of the Mechanical Systems Design Group, Structural Technologies Division at the National Aerospace Laboratories-CSIR, Bangalore, India. His research areas include aircraft hydraulic systems, fuel systems, ECS and landing gear systems. He completed his Ph.D. in Mechanical Engineering under the DAAD Sandwich programme at NIT, Durgapur, and RWTH Aachen-Fraunhofer IPT, Aachen in 2011.
 
Harshavardhan M. Joshi is a Senior Project Engineer at the Mechanical Systems Design Group in the Structural TechnologiesDivision of the National Aerospace Laboratories-CSIR, Bangalore, India. His research areas include aircraft hydraulic systems. He received his B.E. in Mechanical Engineering from Sapthagiri College of Engineering, Bengaluru, India in 2014.

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