Dynamic Analysis of Electro Hydrostatic Actuation System

Navatha, A.; Bellad, Kiran; Hiremath, Somashekhar S.; Karunanidhi, S.

doi:10.1016/j.protcy.2016.08.223

Cited by 23 publications

(12 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the pressure of a hydraulic system exceeds 82 MPa, it can be considered as an ultra-high pressure system, and its cost and maintenance cost are considerable [14,15]. It is difficult for a typical high-pressure pump to achieve such a high pressure, so a pressurized cylinder is usually used to achieve the desired pressure [16,17].…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Verification of Pressurized Cylinders in Hydraulic Rubber Hose Pressure Washers

et al. 2021

View full text Add to dashboard Cite

Hydraulic rubber hoses are subject to great hydraulic impact during the actual working process, which causes a great potential safety hazard. Therefore, it is necessary to carry out pressure tests on hose assemblies to ensure its quality, so providing a high pressure for the hydraulic hose has become the key technology of this problem. Aiming at solving the problem of detection of pressure resistance in hydraulic rubber hose cleaning machines, this paper analyzed the pressurization mechanism of the hydraulic pressurized cylinder and proposed a method of continuous pressurization. This paper also theoretically analyzed the pressure expansion of the rubber hose, and the conclusion is that for the maximum hose capacity (hose size is Φ25 mm × 6 m), the volume of water required to provide water in the hose from 10 MPa to 100 MPa is 0.59 L. The pressurized cylinder was designed and checked theoretically and analyzed by the finite element method. It is concluded that the maximum stress of the pressurized cylinder is concentrated at the bottom of the high-pressure chamber, and the outlet hole at the bottom of the cylinder barrel of the high-pressure chamber is the weakest part of the pressurized cylinder. The performance of the supercharging cylinder is verified by experiments, which proves the feasibility, rapidity and stability of the supercharging cylinder.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and Experimental Verification of Pressurized Cylinders in Hydraulic Rubber Hose Pressure Washers

et al. 2021

View full text Add to dashboard Cite

show abstract

“…17 At present, the research on redundancy management strategies only concentrates on three aspects: guaranteed by hardware design, failure absorption and by simple comparison; these approaches mainly focus on fault monitoring and identification without performing in-depth strategic analysis and system online reconstruction research. 18–27 Unlike the application of fuzzy theory in intelligent control, fault diagnosis and other fields, 28–39 this paper proposes three types of redundancy management method for electro-hydraulic actuators based on fuzzy theory and verifies the effects of the proposed methods through simulation analyses. The proposed methods also alleviate the misjudgment problem of the traditional mathematical comparison method when dealing with the redundant voting problem.…”

Section: Introductionmentioning

confidence: 99%

Redundancy management strategy for electro-hydraulic actuators based on intelligent algorithms

Shi

2020

Advances in Mechanical Engineering

View full text Add to dashboard Cite

This paper explores three methods for electro-hydraulic actuator redundancy management strategies based on fuzzy aggregation, Mamdani’s fuzzy logic rules, and fuzzy neural network theory. These intelligent management schemes and implementation strategies are studied for a designed hardware-independent redundancy loop. Fault identification and isolation and system reconstruction are performed by combining fuzzy clustering with Mamdani’s fuzzy control, a fuzzy neural network, and redundancy management. Simulation analyses of the three algorithms are performed and loop simulation models are established based on the analysis algorithm. The methods proposed in this paper can solve the problem of misjudgment encountered in traditional methods and can also avoid uncertain states in the system.

show abstract

“…Over the past 20 years, EHAs have been applied in high-precision industries such as aviation and submarines [8,9], but only adopting actuators with symmetrical structures. However, industrial applications usually require asymmetric hydraulic actuators, having the advantages of smaller volume and larger output force [10].…”

Section: Introductionmentioning

confidence: 99%

Integral Sliding Mode Backstepping Control of an Asymmetric Electro-Hydrostatic Actuator Based on Extended State Observer

Zhang

2020

The 1st International Electronic Conference on Actuator Technology: Materials, Devices and Applications

View full text Add to dashboard Cite

Dynamic Analysis of Electro Hydrostatic Actuation System

Cited by 23 publications

References 2 publications

Design and Experimental Verification of Pressurized Cylinders in Hydraulic Rubber Hose Pressure Washers

Design and Experimental Verification of Pressurized Cylinders in Hydraulic Rubber Hose Pressure Washers

Redundancy management strategy for electro-hydraulic actuators based on intelligent algorithms

Integral Sliding Mode Backstepping Control of an Asymmetric Electro-Hydrostatic Actuator Based on Extended State Observer

Contact Info

Product

Resources

About