81 Result(s)
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Article
D. Y. **ng
Engineering
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Article
Development of Artificial Neural Network Model to Predict the Performance of R-290 Water Cooler Refrigeration System
The work presented here demonstrates the application of artificial neural networks (ANNs) model and develoment of mathematical equations to estimate the performance of a R-290 water cooler refrigeration system...
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Thermal State of Cryogenic Fuel System in Civil Aircraft with Different Flight Patterns
The operation of a cryogenic fuel system is considered by means of model calculations corresponding to several flight specifications for a civil aircraft fueled by liquefied natural gas.
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Lethality Evaluation of Japanese Tanegashima and Korean Seungja-Chongtong via Projectile Penetration and Mass Drop Experiments
The Japanese invasion of the Korean peninsula lasted from 1592 to 1598, where Japan had the upper hand in infantry warfare based on superior firepower. The representative portable personal firepower weapons we...
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Theoretical calculation models and measurement of friction torque for rolling bearings: state of the art
As a key component of the machinery industry, rolling bearing is widely used in aerospace, high-end machine tools, high-speed trains, precision medical instrument, etc. Friction consumption is the main way of ...
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Complex Assembly Analysis for Geometric and Dimensional Tolerance to Obtain Selective Assembly from Partitioned Bins Using a Multi-objective Approach to Control Clearance Variation of IC Engine
Complex assemblies, such as IC engines, have many parts. Component quality has an impact on assembly performance and is correlated with the tolerance of individual components. Compression ratio (CR) is greatly...
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Topology optimization for polymeric stent
The topological optimization technique is an effective way to provide the optimal design for the polymeric stents. Conventional topology optimization procedure for polymeric stent was all based on classical th...
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Experimental Investigation of Spark Ignition Engine Performance Fuelled with various Pomegranate Ethanol-Gasoline Mixtures
Agriculture fruit waste and municipal waste management in many countries, especially in large crowded cities, is a serious problem. In the fruit and vegetable market, tons of garbage are generated that is wort...
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Evaluation of Emission Characteristics and Performance of Pomegranate Ethanol Blended S. I. Engine using Artificial Neural Network and Rule Learner Classifier
Waste pomegranate fruit is one of the new sources of ethanol. Using four different ethanol mixes, the emission performance of S.I. engine was measured at varied running speeds. Ethanol mixed gasoline enhances ...
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Improving the Concept of High Power Unit Closed-Loop Control for Conventional Thermal Power Plants to Comply with Unit Load Control and Primary Frequency Control Requirements
The first decade of the new century, from 2000 to 2010, was marked by widescale use in the Russian power industry of modern microprocessor equipment and a fundamentally new level of power unit automation imple...
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Nonlinearity of Material Loss Versus the Wearing Force
In contrast to the description provided by Archard’s equation, material loss under a wearing force is more or less nonlinear. Excluding the wear regime transition and other possible factors such as oxidation, ...
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Implementation of CFD–FSI Technique Coupled with Response Surface Optimization method for Analysis of Three-Lobe Hydrodynamic Journal Bearing
In the work presented here, numerical simulations were carried out using computational fluid dynamics and fluid–structure interactions for three-lobe journal bearing. ANSYS Workbench® software was used for the...
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Numerical and experimental investigations of compressed stiffened composite panel with local impact damage
A computing technology of the numerical simulations based on Abaqus code is presented in this paper for complex analysis of the uniaxial compressed stiffened composite panel, having local impact damage. The t...
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Numerical analysis of three lobe hydrodynamic journal bearing using CFD–FSI technique based on response surface evaluation
This work is continuation of the earlier work published on an analysis of plain cylindrical journal bearing using CFD–FSI technique. Here, the technique is applied to analyse three lobe journal bearing. The nu...
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Mechanical properties of PLA-based composites for fused deposition modeling technology
To predict the mechanical behavior of 3D printed products, it is important to understand the composite material properties and the effect that parameters of 3D printing process have on the properties of these ...
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Understanding the Effect of Plastic Deformation on Elastic Modulus of Metals Based on a Percolation Model with Electron Work Function
The elastic modulus of materials is usually treated as a constant in engineering applications. However, plastic deformation may result in changes in the elastic modulus of metallic materials. Using brass, alum...
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Characterization of the surface and mechanical properties of the friction stir welding in tri-dissimilar joints with aluminum alloys and titanium alloy
The search for lighter and more resistant structures contributed to the development of effective welding methods. Among them, friction stir welding, a recent technique patented in 1991, in which welding is per...
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A two-way FSI analysis of multiphase flow in hydrodynamic journal bearing with cavitation
This work deals with a study of a three-dimensional CFD analysis and multi-phase flow phenomena for hydrodynamic journal bearing with integrated cavitation. The simulations are carried out considering the real...
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Article
Precise PI speed control of permanent magnet synchronous motor with a simple learning feedforward compensation
This paper develops a precise proportional–integral (PI) type control system for repeatable tracking control of a permanent magnet synchronous motor (PMSM) under motor parameter and load torque variations. By ...
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Ultra-miniature ultra-compliant neural probes with dissolvable delivery needles: design, fabrication and characterization
Stable chronic functionality of intracortical probes is of utmost importance toward realizing clinical application of brain-machine interfaces. Sustained immune response from the brain tissue to the neural pro...
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Evaluation on environment-friendly refrigerants with similar normal boiling points in ejector refrigeration system
Based on the “hypothetical throat area” theory and the “constant-pressure mixing” theory, a thermodynamic model for ejector was set up by introducing the real properties of refrigerants. Refrigerants which ha...
