26 Result(s)
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Article
Open AccessThree-dimensional characterization of abrasive chips using micro-computed tomography
Chip formation is considered one important indicator to evaluate machining processes. In particular, geometric features of chips may provide important insights for the assessment of machining stability and pro...
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Article
Open AccessA Dual-Task Learning Approach for Bearing Anomaly Detection and State Evaluation of Safe Region
Predictive maintenance has emerged as an effective tool for curbing maintenance costs, yet prevailing research predominantly concentrates on the abnormal phases. Within the ostensibly stable healthy phase, the...
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Article
Effects of correction of thermal properties on 3D conjugate heat transfer of aerostatic thrust bearings
Proper thermal management is crucial to improving the reliability of aerostatic thrust bearing with high air supply pressures. Due to the obvious temperature diffenence in the flow channel clearance, a remarka...
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Article
Study on thermal deformation of high-pressure aerostatic thrust bearing in uneven temperature field
As for high-pressure aerostatic thrust bearing, the notable increase of air supply pressure makes gas film pressure and flow velocity increase rapidly. The two assumptions of fully developed laminar boundary l...
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Article
Effect of equivalence ratio and mixing time on combustion of ammonia/oxygen/argon mixture using a constant volume combustion chamber with sub-chamber
Ammonia has received significant attention as a fuel due to its carbon-free molecular structure. However, burning ammonia is challenging because of its low laminar burning velocity. To promote the combustion v...
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Article
Multibody dynamics modeling of human mandibular musculoskeletal system and its applications in surgical planning
Many patients suffering from oral and maxillofacial tumors cannot open their mouths wide after mandibular reconstruction surgery. Musculoskeletal multibody modeling could be a valuable tool for predicting pati...
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Article
Large deformations of hyperelastic curved beams based on the absolute nodal coordinate formulation
Compared with traditional linear elastic materials, the soft structure composed of incompressible hyperelastic materials has not only geometrical nonlinearity but also material nonlinearity during deformation....
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Article
Investigation and comparison of the flux-switching permanent magnet machine and FSCW surface-mounted permanent magnet machine with close pole-pair number
The very close d-axis and q-axis inductances of the flux-switching permanent magnet (FSPM) machine make it even similar to a surface-mounted permanent magnet (SPM) machine, especially those with fractional slo...
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Article
A mathematical model reveals the influence of NPIs and vaccination on SARS-CoV-2 Omicron Variant
An SVEIR SARS-CoV-2 Omicron variant model is proposed to provide some insights to coordinate non-pharmaceutical interventions (NPIs) and vaccination. Mathematically, we define the basic reproduction number ...
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Article
Robust NN-based decentralized optimal tracking control for interconnected nonlinear systems via adaptive dynamic programming
This study presents a decentralized robust optimal tracking control scheme for a class of interconnected nonlinear systems with disturbances and actuator attacks. To save the computational energy resources, an...
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Article
Micro-extrusion process and microstructure evolution of miniature heat pipe in 6063 aluminum alloy
Micro-extrusion process of miniature heat pipe (MHP) with axial micro grooves is particularly difficult due to ultra-large extrusion ratio and complex cross-sectional shape. In this study, the shape control of...
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Article
Event-driven-observer-based fuzzy fault-tolerant control for nonlinear system with actuator fault
In this study, a novel fuzzy logic-aided event-driven-observer-based fault-tolerant control approach is investigated for a class of nonlinear systems with time-varying actuator faults and unmatched disturbance...
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Chapter and Conference Paper
Multi-source Data Congestion Recognition Study Based on Fuzzy Pattern Recognition
The traffic state identification algorithm based on a single detector data source is often unable to distinguish successfully due to the low prediction accuracy caused by too long distance of fixed monitors an...
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Article
A new hot forging method for the die temperature higher than the billet temperature
In the traditional hot forging, the temperature of the billet is heated to the forming range, and the die does not need to be heated or only slightly preheated. In isothermal forging, the temperature of the di...
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Article
Deformation path and springback behavior in double-curved bending at high temperature
In this work, integrated double-curved bending-sizing-unloading is simulated for a Ti6Al4V titanium alloy sheet. Bending radii R30 mm × R30 mm and R30 mm × R15 mm are used in the bending tests at 700 °C and 75...
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Article
Investigation on effect of ultrasonic vibration on micro-blanking process of copper foil
Investigations have revealed that size effect obviously affects forming quality and accuracy of micro parts. However, to find effective approaches that can reduce the influence of size effect is still a critic...
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Article
Dynamical responses of airfoil models with harmonic excitation under uncertain disturbance
In this paper, we investigate nonlinear dynamical responses of two-degree-of-freedom airfoil (TDOFA) models driven by harmonic excitation under uncertain disturbance. Firstly, based on the deterministic airfoi...
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Article
The reliability assessment of human systems interaction for aircraft carrier landing
The accidents of many share-control engineering application, including the aircraft carrier-landing process, are directly related to human error. In order to identify human error and assess the reliability of ...
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Article
Springback evaluation in hot v-bending of Ti-6Al-4V alloy sheets
In this paper, v-bending of Ti-6Al-4V alloy sheet was conducted from room temperature to 850 °C at a fixed velocity of 0.1 mm/s. Punches with punch radii of 1, 2, 4, and 6 mm, as well as several holding times ...
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Article
Tribological behaviors in microforming considering microscopically trapped lubricant at contact interface
In the study of microforming meeting the needs of miniaturization of parts to be formed, the size effects are important parameters to be considered seriously. The objective of the investigation is to establish...
