Hydraulic machine

This paper introduces the general structure of the rock splitter machine and the hydraulic cylinder-driven splitting head, along with the method for selecting suitable parameters.

13p viohoyo 25-04-2024 3 2   Download

The study is carried out in the Matlab/Simulink simulation environment, where the circuit models are constructed using hydraulic components with practical parameter settings sourced from component suppliers. The analysis results indicate that the proposed circuit strikes a balance between functionality and economic efficiency.

8p viellison 28-03-2024 3 1   Download

Part 2 book "Hydraulics and fluid mechanics including hydraulic machines" includes content: Flow over notches and weirs, flow through pipes, boundary layer theory, laminar flow, turbulent flow in pipes, turbulent flow in pipes, turbulent flow in pipes, dimensional analysis, hydraulic similitude and model investigation, fluid flow around submerged objects—drag and lift, flow of compressible fluids, impact of free jets, hydraulic turbines,... and other contents.

951p muasambanhan08 23-02-2024 4 4   Download

Part 1 book "Hydraulics and fluid mechanics including hydraulic machines" includes content: Properties of fluids, fluid pressure and its measurement, hydrostatic forces on surfaces, buoyancy and floatation, liquids in relative equilibrium, fundamentals of fluid flow, equations of motion and energy equation, impulse momentum equation and its applications, flow through orifices and mouthpieces.

470p muasambanhan08 23-02-2024 7 3   Download

Part 1 book "A textbook of fluid mechanics and hydraulic machines compress" includes content: Properties of fluids, pressure and its measurement, hydrostatic forces on surfaces, buoyancy and floatation, kinematics of flow and ideal flow.

278p muasambanhan07 08-02-2024 3 2   Download

Part 2 book "A textbook of fluid mechanics and hydraulic machines compress" includes content: Dynamics of fluid flow, orifices and mouthpieces, notches and weirs, viscous flow, turbulent flow, flow through pipes, dimensional and model analysis, boundary layer flow, forces on sub-merged bodies, compressible flow,... and other contents.

300p muasambanhan07 08-02-2024 5 2   Download

The article "A review of metaheuristic optimized machine learning regression with applications in construction engineering" aims at reviewing state-of-the-art research works involving the use of metaheuristic optimized machine learning regression models. Recent research articles published in the time period of 2019-2021 are surveyed. Research areas of construction material, construction management, structural engineering, geotechnical engineering, hydraulic engineering, and structural health monitoring are taken into account.

7p nhanchienthien 25-07-2023 6 4   Download

Part 1 of ebook "Civil engineering reference manual for the PE exam (7th edition)" has presents the following content: background and support; engineering drawing practice; linear algebra; numerical analysis; water resources; fluid flow parameters; hydraulic machines; water supply treatment and distribution; wastewater quantity and quality; pollutants in the environment; rigid retaining walls; disposition of hazardous materials; temporary excavations; environmental remediation;...

627p dieptieuung 20-07-2023 8 2   Download

The paper proposes a novel method that applies Buckingham's Pi theory and the Random Forest regression to improve the prediction accuracy of the sequent depths of the hydraulic jump in the trapezoidal channel. The study has shown that Machine Learning models can be efficient for the determination of the geometrical features of the jump and have high ability in many real projects.

9p vispyker 14-11-2022 13 4   Download

This paper focuses on building a theoretical method, based on the calculation of hydraulic losses to predict the energy performance of a Low-specific speed Pump as Turbine (PaT) quickly and accurately that supported for the PaT’s impeller design. The Euler equation is built with the analysis of hydraulic loss calculation and flow phenomena passing on the machine.

7p vimelindagates 18-07-2022 5 2   Download

In this research, the study of the final geometry in abrasive waterjet machining of a hybrid CFRTP/Steel structure. A new methodology for the evaluation of taper angle with high accuracy has been developed through image processing. In addition, the surface quality in terms of Ra and Rz has been assessed. A potential-type trend between taper and hydraulic pressure has been established for both materials.

16p guernsey 28-12-2021 10 0   Download

This paper presents the study on developing the physics core, control module, and human-machine interface (HMI) of DalatSim. The nodalization of DNRR used for DalatSim was based on the reported numerical model in the Safety Analysis Report (SAR) in 2012. DalatSim can simulate operational procedures and several hypothetical transient accidents of DNRR.

8p princessmononoke 29-11-2021 7 1   Download

This paper addresses the kinematic and dynamic modelling of a novel serial-parallel robot arm which has been designed and implemented for hot press forging industry in Vietnam. The robot is capable of replacing workers for transferring hot and heavy billets between a heating furnace and a hydraulic press machine of a forging station.

9p viwendy2711 05-10-2021 16 5   Download

The paper presents general theory about making small models for studying large machines. Here, the author refers to the design of pile driving and pressing machines. To express ideas, the author presents design drawings presented in three-dimensional perspective. Currently, pile drivers and pile presses are two separate machines, in which their base machine is the same, their working parts are slightly different.

11p cothumenhmong11 05-05-2021 8 1   Download

The objective of current research work was to carry out field evaluation of sorghum harvester and also conduct the Pareto analysis of sorghum harvester to find out mechanical failure of various parts. The high workload, improper material selection of moving parts, improper clearance, maintenance and repair cause failure of component and many times equipment reliability issues were ignored. All the working components of machine required different level of maintenance throughout the life of machine.

4p trinhthamhodang1215 23-09-2020 11 1   Download

Hydraulics - Workbook basic level present automatic lathe pump characteristic; package lifting device pressure relief valve characteristic; drawing press hydraulic resistances; furnace door control double-acting cylinder; cold-store door accumulator; rotary machining station flow control valve and counter-holding; painting booth flow control valve characteristic...

25p gaocaolon6 04-08-2020 5 1   Download

This paper reports a novel curve developed from non - circular gearing theory, which can be applied in rotor profile design of the two - lobe Roots blower. The formulas for calculating the volumetric efficiency and specific flow rate of the blower have also been established.

12p abcxyz123_02 03-03-2020 8 0   Download

The most mechanized agricultural operations include a tractor as a primary power unit, even though the tractor itself is not particularly useful without an implement attached. Innovations and efficiency improvements in tractor engines, powertrains, and auxiliary power systems have been ongoing since tractors were invented a century ago and significant gains have been realized. However, PTO and hydraulic power systems are well established and effective for today‟s applications, the search for more versatile and efficient power transfer continues.

16p chauchaungayxua1 04-12-2019 14 1   Download

This paper presents a study in vibration field of a large-scale hydraulic cylinder actuator via numerical simulation. A model of hydrostatic hoisting machine which is built with dynamical parameters is executed for implementation and performance evaluation.

5p visasuke2711 25-04-2019 19 0   Download

In this paper, we have investigated the intelligent control of a hydraulically driven parallel robot based on the dynamic model and two control schemes have been developed: 1) Fuzzy-PID self tuning controller composed of the conventional PID control and with Fuzzy logic; 2) Adaptive neuro-fuzzy inference system-PID (ANFIS-PID) self tuning of the gains of the PID controller.

8p cathydoll5 27-02-2019 41 1   Download