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Updated: Mar 17, 2026

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

Case study on impact performance optimization of hydraulic breakers.

Dae-Kyung Noh¹, Young-Ky Kang², Jae-Sang Cho²

¹School of Mechanical Engineering, Gachon University, 1342, Seongnamdaero, Seongnam-si, Gyeonggi 13120 South Korea.

|July 29, 2016

Summary

This summary is machine-generated.

This study optimized hydraulic breakers for excavators, enhancing impact energy and frequency while reducing pressure pulsations. Validation tests confirmed the optimization

Keywords:

Impact energy Impact frequency Multiobjective function Optimization Pressure pulsation

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Area of Science:

Mechanical Engineering
Hydraulic Systems
Construction Equipment

Background:

Excavator attachments like hydraulic breakers expand machine capabilities.
Predicting the non-linear dynamics of hydraulic impact devices is challenging.
Current limitations hinder the full potential of hydraulic breakers in heavy machinery.

Purpose of the Study:

To optimize the impact performance of hydraulic breakers.
To increase impact energy and frequency.
To reduce pressure pulsation in hydraulic supply and return lines.

Main Methods:

Utilized optimization techniques to adjust four key breaker parameters.
Performed experimental testing to validate simulation results.
Analyzed discrepancies between optimized and experimental data.

Main Results:

Optimization significantly improved breaker performance compared to existing literature.
Experimental validation showed good agreement with optimization, with an average relative error of 8.24%.
Identified key parameters for enhancing hydraulic breaker efficiency.

Conclusions:

The developed optimization strategy effectively enhances hydraulic breaker performance.
Optimized breakers offer increased impact energy and frequency for excavators.
This facilitates broader applications for excavators and improves operational efficiency.