Article Per Year (5 Year)
p-Index From 2020 - 2025
0.778
P-Index
This Author published in this journals
All Journal Jurnal Polimesin
Nguyen Huu Tho
Ho Chi Minh City University of Food Industry (HUFI), Scopus Author ID:55914755300
Automotive Engineering Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Geometry Improvement and Flow Simulation in the water level control valve based on the CAD/CAE and DOE integrated system Nguyen Huu Tho; Phan Hoang Phung; Huynh Van Nam; Nguyen Vu Anh Duy
Jurnal POLIMESIN Vol 19, No 2 (2021): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v19i2.2114

Abstract

Floating valve is a type of valve which can open and close automatically based on the level of water in the tank by Archimedes force without using electric-based control signals. However, there are no engineering reports of the influences of factors to the liquid flow through the valve with the considerations of multiple objective obtimization based on design of experiments (DOE) in the context of our country until now. Many products in the domestic market have been paid more attention by the customers but still have several disadvantages such as the practical malfunctions of floating valve. Thus, this study presents an integrated approach of CFD simulation and DOE-based multi-criteria optimization for proposed valve design. This technique allows to identify the influencing factors to the valve’s goals of volume flow rate and the force which exerts into the rubber rubber to create a gap distance in order that the float valve can operate. In this study, several factors used as inlet pressure, a gap distance of rubber sheet, pressure vent hole diameter and orifice diameter. CFD (computational fluid dynamics) based simulation technique integrated into experimental design assists us to determine the most suitable dimensional and operational parameters of water level-control float valve. The numerical simulation results confirmed that design valve are appropriate and potential in the practice. The integrated simulation framework can be considered a general and effective way to analyze several types of other valves.
Study on process parameters effects to burr height in drilling of Aluminium 6061 alloy sheet on CNC milling machine Nguyen Huu Tho; Nguyen V. A. Duy; Dinh Tien Dung; Nguyen M. Huy; Nguyen V. Thanh; Jannifar Jannifar
Jurnal POLIMESIN Vol 20, No 1 (2022): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v20i1.2116

Abstract

Productivity and quality of drilling are also of interest, have been paid more attention on the size of burr through the cleaning process. The presence of burr on drilled workpieces creates problems not only in the processing but also in the assembly line, affecting the accuracy of the assembly. Many factors have significant impacts on the burr height such as spindle speed, cutting feed and drill bit diameter. In this paper, the experiment investigation of those process parameters to burr height is implemented, then Taguchi-based approach is used to determine the influence density of each factors. Moreover, artificial neural network model is applied to predict the burr height based on the three input factors. The experiment results showed that the two most important factors affecting the burr are the speed of the spindle and the feed rate. The factors realized to be significant for burr formulation such as an 8 mm drill bit diameter, a CNC spindle speed of 2500 rpm, and feed rate of 70 mm/rev, which will result in the smallest output in terms of the height of the obtained burr is 0.12792 mm.
Co-Authors A. Jannifar Dinh Tien Dung Huynh Van Nam Nguyen M. Huy Nguyen V. A. Duy Nguyen V. Thanh Nguyen Vu Anh Duy Phan Hoang Phung