4.6 Article

Numerical Analysis of Fluid Stream Division to Supply Multiple Hydraulic Receivers

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Automation & Control Systems

A new adaptive sliding mode controller based on the RBF neural network for an electro-hydraulic servo system

Hao Feng et al.

Summary: An adaptive sliding mode control method based on RBF neural networks is proposed to improve the performance of a robotic excavator. The RBF neural networks are used to approximate and compensate for model uncertainties and load disturbances in the electro-hydraulic servo system. Adaptive mechanisms are designed to adjust the connection weights of the neural networks in real time for stability, and a nonlinear term is introduced into the sliding mode to improve dynamic performance. Experimental results show that the proposed controller outperforms traditional PID and SMC controllers in terms of tracking accuracy and disturbance rejection.

ISA TRANSACTIONS (2022)

Article Chemistry, Multidisciplinary

Multi-Objective Optimization Design of Key Parameters of a Stepless Flow Control System with Multi-System Coupling Characteristics

Xu Sun et al.

Summary: The stepless flow control system is an important energy-saving technology for reciprocating compressors in the petrochemical and oil refining industries. Optimizing the movement characteristics of the unloader and suction valve is crucial for improving the energy-saving level and reducing operating costs. This study establishes a working model based on multi-system coupling and uses the response surface method to optimize key control parameters. The results show that the comprehensive working performance of the system is effectively improved through the proposed double optimization scheme.

APPLIED SCIENCES-BASEL (2022)

Article Automation & Control Systems

Synchronous control of multiple electrohydraulic actuators under distributed switching topologies with lumped uncertainty

Qing Guo et al.

Summary: This study proposes a leader-following synchronous control method in multiple electrohydraulic actuators, ensuring the follower actuators can track the motion of the leader. The effectiveness of the proposed synchronous controller is verified through simulation and experimental tests.

JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS (2022)

Article Nuclear Science & Technology

Numerical simulation and experimental validation of flow characteristics for a butterfly check valve in small modular reactor

Qinglong Wen et al.

Summary: This study performed simulations and validations of the flow characteristics for a butterfly check valve in a small modular reactor using computational fluid dynamics (CFD) method. The results showed that the simulation results using the standard k-epsilon model agreed better with the experiment results, indicating the accuracy of this model in analyzing the natural circulation characteristics of small modular reactors.

NUCLEAR ENGINEERING AND DESIGN (2022)

Article Chemistry, Multidisciplinary

A Control Method for the Differential Steering of Tracked Vehicles Driven Independently by a Dual Hydraulic Motor

Jiangyi Han et al.

Summary: This paper focuses on the differential steering control of tracked vehicles independently driven by a hydraulic motor. By establishing a dynamic model and analyzing the constraint conditions, control rules for differential steering are formulated and their effectiveness is verified through simulations.

APPLIED SCIENCES-BASEL (2022)

Article Construction & Building Technology

Design and control performance optimization of dual-mode hydraulic steering system for wheel loader

Yuqi Wang et al.

Summary: This paper presents a dual-mode steering system to solve the complexity and fatigue issues of traditional wheel loaders. By controlling the swing angle and time of a joystick, the steering speed and angle of the loader can be controlled. Simulation and experimental results demonstrate that the proposed system has similar pressure variation trends and good steering performance compared to the traditional system. The hydraulic damping diameter matching the steering system is obtained through simulating and optimizing an equivalent model.

AUTOMATION IN CONSTRUCTION (2022)

Article Engineering, Mechanical

Synchronous control for multiple electrohydraulic actuators with feedback linearization

Qing Guo et al.

Summary: This paper investigates the synchronous control problem of multiple electrohydraulic actuators, achieving leader-following synchronization with third-order nonlinear dynamics and unknown external load. The effectiveness of the synchronous controller is verified through simulation and experimental tests.

MECHANICAL SYSTEMS AND SIGNAL PROCESSING (2022)

Article Engineering, Mechanical

Modeling, simulation and experimental validation of flow rate of electro-hydraulic hitch control valve of agricultural tractor

Sanjeev Kumar et al.

Summary: This paper presents a methodology for the development of an efficient unified model of a three-point hitch electro-hydraulic proportional control valve control system for agricultural tractors using a parameter estimation technique. The model is useful for simulation, practical capability testing, and non-linear control design. Simulation results were compared with actual experimental results, showing variation of 4 and 12.5% in the lifting and lowering time of the TPH.

FLOW MEASUREMENT AND INSTRUMENTATION (2021)

Article Energy & Fuels

Design and Flow Analysis of an Adjustable Check Valve by Means of CFD Method

Grzegorz Filo et al.

Summary: The research presented in the article focuses on improving flow characteristics and reducing pressure losses of an adjustable check valve. Two variants of the valve body were analyzed and a new solution with modified geometry based on CFD simulations was proposed. Results showed a significant reduction in pressure loss, up to 40%, with a high degree of consistency between simulation and experimental results.

ENERGIES (2021)

Article Chemistry, Multidisciplinary

Modelling and Stability Analysis of Articulated Vehicles

Tianlong Lei et al.

Summary: This study constructs a nonlinear dynamic model of articulated vehicles and a model of hydraulic steering system, analyzing the stability of vehicles and focusing on the causes of snake oscillation, relevant indicators for evaluating snake instability, and the specific action mechanism of influencing factors.

APPLIED SCIENCES-BASEL (2021)

Article Chemistry, Multidisciplinary

Computational Fluid Dynamic Analysis of Flow Rate Performance of a Small Piezoelectric-Hydraulic Pump

Phuc Nguyen Anh et al.

Summary: This paper investigates the transient flow rate performance of small piezoelectric-hydraulic pumps used in brake systems for small- and medium-sized UAVs. A thin plate spring check valve was designed to effectively discharge the flow in a single direction. Utilizing CFD tools, the study accurately predicts the flow rate and visualizes the internal flow field to enhance pump efficiency.

APPLIED SCIENCES-BASEL (2021)

Article Thermodynamics

Power management of multi-source network hydraulic system with multiple actuators

Jing Yao et al.

ENERGY CONVERSION AND MANAGEMENT (2020)

Article Engineering, Mechanical

Development of a flow control valve with digital flow compensator

Jiahai Huang et al.

FLOW MEASUREMENT AND INSTRUMENTATION (2019)

Article Engineering, Mechanical

Flow control of a proportional directional valve without the flow meter

Junhui Zhang et al.

FLOW MEASUREMENT AND INSTRUMENTATION (2019)

Article Engineering, Mechanical

Turbulent compressible flow analysis on multi-stage high pressure reducing valve

Fu-qiang Chen et al.

FLOW MEASUREMENT AND INSTRUMENTATION (2018)

Review Nuclear Science & Technology

A CFD analysis of the flow dynamics of a directly-operated safety relief valve

N. L. Scuro et al.

NUCLEAR ENGINEERING AND DESIGN (2018)

Article Engineering, Mechanical

Analysis of a proportional control valve flow coefficient with the usage of a CFD method

E. Lisowski et al.

FLOW MEASUREMENT AND INSTRUMENTATION (2017)

Article Thermodynamics

Evaluation of steady flow torques and pressure losses in a rotary flow control valve by means of computational fluid dynamics

Ivan Okhotnikov et al.

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW (2017)

Proceedings Paper Materials Science, Multidisciplinary

Simulated Design of a Flow Control Valve for Stroke Speed Adjustment of Hydraulic Power of Robotic Lifting Device

A. O. M. Adeoye et al.

PLASTICITY AND IMPACT MECHANICS (2017)

Article Thermodynamics

CFD analysis of the characteristics of a proportional flow control valve with an innovative opening shape

Edward Lisowski et al.

ENERGY CONVERSION AND MANAGEMENT (2016)

Article Thermodynamics

Pressure compensation using flow forces in a multi-section proportional directional control valve

E. Lisowski et al.

ENERGY CONVERSION AND MANAGEMENT (2015)

Article Thermodynamics

CFD analysis on the dynamic flow characteristics of the pilot-control globe valve

Jin-yuan Qian et al.

ENERGY CONVERSION AND MANAGEMENT (2014)

Article Engineering, Mechanical

Flow-sensorless control valve: neural computing approach

T Leephakpreeda

FLOW MEASUREMENT AND INSTRUMENTATION (2003)