45 Result(s)
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Article
Open AccessResearch progresses of nanomaterials as lubricant additives
Friction and wear are unavoidable in mechanical movement. The use of lubricants with nano-additives can effectively reduce friction and wear, which is of great significance to saving energy and protecting the ...
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Article
Research on heat and mass transfer in the molten pool of laser cladding
In order to study the evolution laws of the temperature field, flow field, and macroscopic morphology of the molten pool during laser cladding process, this paper focuses on the changes in the morphology and f...
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Article
Analysis of the thermal expansion and mechanical properties of laser cladding of Invar alloy
Laser cladding has significant advantages in the forming process of Invar alloy. Nevertheless, the coefficient of thermal expansion, microstructure and mechanical properties still need to be further investigat...
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Article
Design of a robust LMI-based H∞ observer for the state of charge estimation in lithium-ion batteries
Designing a robust Hꝏ observer to estimate the state of charge (SoC) of lithium batteries for various applications, including microgrids, is the principal goal of the present article. Battery dynamic models al...
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Article
Open AccessExploring the use of graphene lubricant and TiO2 nanolubricants in micro deep drawing of stainless steel SUS301
This study investigates the effects of different lubrication conditions on drawing force and microcup formation during micro deep drawing (MDD). Results show that graphene lubricant, in combination with TiO2 nano...
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Article
Open AccessResearch on knowledge graph-driven equipment fault diagnosis method for intelligent manufacturing
In the process of rotating machinery fault diagnosis (RMFD), the lack of feature conditions leads to the problem of low accuracy of traditional rule-based reasoning methods FD. This paper proposed a knowledge ...
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Article
An axial attention-BiLSTM-based method for predicting the migration of CNC machine tool spindle thermal error under varying working conditions
Spindle thermal error is a major factor affecting the machining accuracy of machine tools. The time-consuming experiments required to model the thermal error of each machine tool spindle makes exhaustive studi...
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Chapter and Conference Paper
Novel Fabrication of Ultra-thin Copper/SS304L Composite Microchannels
Microchannels on metallic substrates are essential parts of microreactors, micro heat exchangers, micro heat sinks, and fuel cell bipolar plates. Because of superior properties, such as good corrosion resistan...
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Chapter and Conference Paper
The Effects of Annealing on Microstructure and Mechanical Properties of Monolithic Low Carbon Steel and Medium Manganese Steel/low Carbon Steel (Mn8/SS400) Bimetal Composite
Metal composites have attracted many interests due to their multi-functionality and excellent overall performance. Medium Mn steels have received much attention as the third-generation high strength steels owi...
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Article
Estimator-based dynamic learning from neural control of discrete-time strict-feedback systems
The dynamic learning issue from adaptive neural control for a class of discrete-time strict-feedback nonlinear systems is the main topic of this paper. Different from the traditional control schemes, a new aux...
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Article
Research progress of nanolubrication for rolling process
During past decades, water-based and oil-in-water (O/W) based nanolubricants with nanoparticles (NPs) as additives have been developed to replace conventional oil-based lubricants for solving contamination pro...
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Article
Research on variable crown work roll curve design for W-shaped profile control of strips
The control of strip profiles has been one of the challenges faced by plate and strip enterprises. Wide rolling mill lines are usually plagued with W-shaped profile defects, which severely hamper the improveme...
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Article
Open AccessDeep learning-driven precision control of dilution rate in multi-pass laser cladding: experiment and simulation
The continuous energy input can lead to heat accumulation in the multi-pass lap laser cladding, which results in a progressive increase in the dilution rate and deteriorates the quality of laser cladding. Prec...
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Article
From deterministic to stochastic: an interpretable stochastic model-free reinforcement learning framework for portfolio optimization
As a fundamental problem in algorithmic trading, portfolio optimization aims to maximize the cumulative return by continuously investing in various financial derivatives within a given time period. Recent year...
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Article
Open AccessStudy on microstructure evolution and mechanical properties of high-strength low-alloy steel welds realized by flash butt welding thermomechanical simulation
Defects would occur in the weld joint of the wheel rims during the post-flash butt welding (FBW) process suffering from poor plasticity, which will deteriorate the quality and lifecycle of finish products. The...
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Article
Open AccessThe influence of water-based nanolubrication on mill load and friction during hot rolling of 304 stainless steel
Using pure water in comparison to water-based lubricant containing 4% TiO2 nanoparticles (NPs), the hot rolling tests of 304 stainless steel were carried out at a rolling temperature of 1050 °C under varying roll...
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Article
Open AccessInfluence of intermediate roll shifting on strip shape in a CVC-6 tandem cold mill based on a 3D multi-stand FE model
Intermediate roll shifting (IRS) is widely used for improving the strip shape in the six-high tandem cold mill, but most related studies are limited to a single stand. To fill the knowledge gap, a three-dimens...
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Article
Open AccessEx situ analysis of high-strength quenched and micro-alloyed steel during austenitising bending process: numerical simulation and experimental investigation
This paper compares the microstructure and mechanical evolution in a high-strength quenched and micro-alloyed steel during the austenitising bending process. Simulation results indicated a new finding that the...
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Article
Open AccessNumerical analysis of the strip crown inheritance in tandem cold rolling by a novel 3D multi-stand FE model
The strip shape inheritance model is widely applied to improve the strip shape quality in tandem cold rolling (TCR). However, the inheritance mechanism is still currently unclear. To bridge this gap, this pape...
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Article
Tuning methods for tuned inerter dampers coupled to nonlinear primary systems
This study develops displacement- and kinetic energy-based tuning methods for the design of the tuned inerter dampers (TIDs) coupled to both linear and nonlinear primary systems. For the linear primary system,...
