Theoretical model of dynamic bulk modulus for aerated hydraulic fluid

X Yuan, W Wang, X Zhu, L Zhang - Chinese Journal of Mechanical …, 2022 - Springer
Existing models of bulk modulus for aerated hydraulic fluids primarily focus on the effects of
pressure and air fraction, whereas the effect of temperature on bulk modulus is disregarded …

Nonlinear model of a servo-hydraulic shaking table with dynamic model of effective bulk modulus

P Righettini, R Strada, S Valilou… - Mechanical Systems and …, 2018 - Elsevier
In this paper, based on fluid mechanical expressions and a new modified effective bulk
modulus model of hydraulic oil built upon IFAS model (developed at the Institute für …

Dynamic modeling of fluid nonlinear compression loss and flow loss oriented to fault diagnosis of axial piston pump

B Geng, L Gu, J Liu, Y Shi - Proceedings of the Institution of …, 2021 - journals.sagepub.com
Volumetric efficiency (VE) is an extremely important index to evaluate the performance of
pump and motor. Efforts have been concentrated on the causes and character of leakage …

Static and dynamic characterization and control of a high-performance electro-hydraulic actuator

GN Sahu, S Singh, A Singh, M Law - Actuators, 2020 - mdpi.com
This paper characterizes the static, dynamic, and controlled behavior of a high-performance
electro-hydraulic actuator to assess its suitability for use in evaluating machine tool …

Research on theoretical model of dynamic bulk modulus of gas-containing hydraulic oil

X Yuan, X Zhu, C Wang, L Zhang - IEEE Access, 2019 - ieeexplore.ieee.org
The bulk modulus of the gas-containing hydraulic oil is an important indicator reflecting its
compressibility, directly affecting the stability, accuracy, rapidity, and reliability of the fluid …

Analysis on parametric vibration of hydraulic opposing cylinders controlled by a servo valve considering pressure pulsation

X Yuan, W Wang, X Zhu, B Du… - Transactions of the …, 2022 - cdnsciencepub.com
During the working process of the system of hydraulic opposing cylinders controlled by a
servo valve, the fluid equivalent stiffness changes dynamically due to the pressure pulsation …

Development of rocking constraint device with vertical damping capacity for three-dimensional base-isolated frame structures

Y Shi, Q Wang, W Dong, B Zhao - Frontiers of Structural and Civil …, 2023 - Springer
A new rocking constraint device (RCD) is developed for three-dimensional (3D) base-
isolated frame structures by connecting a custom-designed cylinder pair to provide vertical …

An apparatus for the performance estimation of pressure fluctuation energy harvesters

JJL Aranda, S Bader, B Oelmann - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Hydraulic pressure fluctuation energy harvesters are promising alternatives to power up
wireless sensor nodes in hydraulic systems. The characterization of these harvesters under …

Novel methods for modeling and online measurement of effective bulk modulus of flowing oil

B Geng, L Gu, J Liu - IEEE Access, 2020 - ieeexplore.ieee.org
Oil is a key medium for transmitting power and coupling information in the hydraulic
transmission system. Accurate calculation and measurement of the dynamic compressibility …

[PDF][PDF] Research on theoretical model of dynamic bulk modulus of elasticity of gas-liquid mixed fluid

袁晓明, 王储, 朱轩, 张立杰 - Journal of Mechanical Engineering, 2020 - qikan.cmes.org
The bulk modulus is one of the basic properties of gas-liquid mixed fluid. But the matching
between the existing model and the real dynamic bulk modulus of the fluid during …