Related Experiment Video
Updated: Oct 20, 2025

Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
Published on: June 13, 2022
Modeling the dynamics of a dual input-single output closed-circuit hydraulic drive
Ajit Kumar Pandey1, K Dasgupta2, Sanjoy K Ghoshal3
1Department of Mechanical Engineering, National Institute of Technology, Patna, Bihar, 800005, India.
Abstract:
This work presents a scheme of a dual input-singleoutput closed-circuit hydraulic drive consisting of a pump and a hydraulic motor both variable displacement axial-piston type. It analyzes the dynamics of the hydraulic drive system through modeling and simulation. The model considers state-dependent non-linear losses and the temporal behaviors of the rotary actuators identified from the test data and these models are also considered in the simulation studies. The work also discusses the effects of nominal changes in the values of the decisive parameters on the drive's predicted performance to justify its practical range of application. Without dismantling the system components, comparing the test data with the simulation results verifies the system model for the drive's various working conditions. This aspect is essential for a priori analysis of a system and lends itself to be helpful for application engineers for the initial selection and development of a similar drive used in the mobile equipment.
More Related Videos
09:04A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
Published on: June 1, 2022
06:45Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
Published on: October 28, 2022
Related Concept Videos
Design Example: Creating a Hydraulic Model of a Dam Spillway
Open and closed-loop control systems
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
Design Example: Forces in Sluice Gate
Key variables in...
Relation between Mathematical Equations and Block Diagrams
Typical Model Studies
Application of Pascal's Law
Hydraulic systems are used to operate automotive brakes, hydraulic jacks, and numerous other mechanical systems. We can derive a relationship between the forces in a simple hydraulic system...