A5077817787- Manufacturing Process and Optimization
- Scheduling and Optimization Algorithms
- Industrial Technology and Control Systems
- Advanced Algorithms and Applications
- Advanced Sensor and Control Systems
- Acoustic Wave Phenomena Research
- Advanced Manufacturing and Logistics Optimization
- Reliability and Maintenance Optimization
- Structural Integrity and Reliability Analysis
- Evaluation and Optimization Models
- Composite Structure Analysis and Optimization
- Non-Destructive Testing Techniques
- Fluid Dynamics Simulations and Interactions
- Machine Fault Diagnosis Techniques
- Vibration and Dynamic Analysis
- Risk and Safety Analysis
- Engineering Diagnostics and Reliability
- Software Reliability and Analysis Research
- Ship Hydrodynamics and Maneuverability
- Power Systems and Renewable Energy
- Product Development and Customization
- Flexible and Reconfigurable Manufacturing Systems
- Underwater Acoustics Research
- Smart Grid and Power Systems
- Welding Techniques and Residual Stresses
Shanghai Jiao Tong University
1996-2024
Sichuan University of Arts and Science
2012-2020
Shanghai Ocean University
2019
Collaborative Innovation Centre for Advanced Ship and Deep-Sea Exploration
2018
Wuhan Ship Development & Design Institute
2018
Beijing Jiaotong University
2016-2017
National Institute of Metrology
2015
Southeast University
2004-2013
Lanzhou University of Technology
2005-2010
Nanchang Hangkong University
2010
Modern manufacturing systems have to cope with dynamic changes and uncertainties such as machine breakdown, hot orders other kinds of disturbances. Holonic (HMS) provide a flexible decentralised environment accommodate dynamically. HMS is based on the notion holon, an autonomous, co-operative intelligent entity which able collaborate holons complete tasks. requires robust coordination collaboration mechanism allocate available resources achieve production goals. In this paper, basic...
Misalignment is an important cause for the early failure of large doubly-fed wind turbines (DFWT). For non-stationary characteristics signals in transmission system DFWT and reality that it difficult to obtain a number fault samples, Solidworks Adams are used simulate different operating conditions corresponding characteristic signals. Improved empirical mode decomposition (IEMD), which improves end effects (EMD) decompose get intrinsic function (IMF), IEMD energy entropy reflecting working...
When navigating dynamic ocean environments characterized by significant wave and wind disturbances, USVs encounter time-varying external interferences underactuated limitations. This results in reduced navigational stability increased difficulty trajectory tracking. Controllers based on deterministic models or non-adaptive control parameters often fail to achieve the desired performance. To enhance adaptability of USV motion controllers, this paper proposes a tracking algorithm that...
Misalignment is one of the common faults for doubly-fed wind turbine (DFWT), and normal operation unit will be greatly affected under this state. Because it difficult to obtain a large number misaligned fault samples turbines in practice, ADAMS MATLAB are used simulate various misalignment conditions transmission system corresponding stator current paper. Then, dual-tree complex wavelet transform decompose reconstruct characteristic signal, energy entropy obtained from reconstructed...
When ships travel on the high seas, changes in sea states and sailing conditions induce significant uncertainties hydrodynamics, leading to deterioration performance of traditional stabilization systems. To overcome this problem, a combination model predictive control (MPC) an adaptive input disturbance predictor is proposed. This predicts wave force by using auto-regressive then compensating for predicted MPC framework. more appropriate than classical when dealing with constraints. The...
Wind power generation systems require complex control with multiple working conditions and controllers. Under different operating conditions, switching without disturbancebetweenthesub-controllersplaysacriticalroleinensuringthestabilityofpowersystems. The sub-controllers of two typical cases in the permanent magnet direct drive (PMDD) wind turbine running process are studied, one is proportional integral (PI) controller maximum points tracking (MPPT) stage, other fuzzy pitch angle constant...
The equation of state (EOS) HfC and nanosized TiC at high pressure has been studied by means synchrotron radiation X-ray diffraction (XRD) in a diamond anvil cell (DAC) ambient temperature, density functional theory (DFT) calculations. XRD analysis showed that the cubic structure maintained to maximum pressures. data yield bulk modulus [Formula: see text] GPa with HfC. In addition, derived from is text].
Process planning and production scheduling play important roles in manufacturing systems. Their are to ensure the availability of resources needed accomplish tasks result from a demand forecast. In this paper, fuzzy inference system(FI.9) choosing alternative machines for integrated process bf job shop system proposed. Instead randomly, being selected based on reliability. The mean time failure (MTF) values input mechanism, which outputs machine is then penalized output. most reliable will...
Ships are large welded structures.Welding residual stress (WRS) significantly impacts the mechanical properties of structure.The plate and cylinder models by electrode welding (EW) submerged arc (SAW) were designed to measure WRS high-strength shipbuilding steel.The was tested instrumented indentation method.The value each point proposed.The distribution patterns different processes analysed.This research can provide a reference for controlling ships improving quality.
A key comparison in dew-point temperature was carried out among the national standards held by NPL (pilot), NMIJ, INTA, VSL, INRIM, MIKES, NIST, NIM, VNIIFTRI-ESB and NMC. pair of condensation-principle hygrometers circulated used to compare local realisations dew point for participant humidity generators range ?50 ?C +20 ?C. The duration prolonged numerous problems with hygrometers, requiring some repairs, several additional check measurements pilot. Despite extended timescale, effective...
Job-shop scheduling problem (JSSP) is very common in a discrete manufacturing environment. It deals with multi-operation models, which are different from the flow shop models. There some difficulties that make this difficult. Firstly, it highly constrained changes to shop. Secondly, its decision mainly depends on other not isolated functions. an NP-hard problem. In paper, we proposed new hybrid approach, combining ANN and GA, for job-shop scheduling. The GA used optimization of sequence,...
Throttle valve is an important device in well control manifold. In the process of field use, seat and plug often have corrosion failure, which brings serious potential safety hazards to work. Using three-dimensional flow analysis software computational fluid dynamics (CFD), it found that velocity on left wall greater than right. The failure investigation also proved erosion damage mainly occurred throttle valve, verified causes core seat. addition, resistance numerically simulated. results...
The influence of complex pre-stress on the circular thin plate is investigated in this study to solve non-uniform stress distribution problem. differential equation with derived based strain-displacement equation. analytical method free vibration for proposed, which and displacement function are expanded into cosine trigonometric series. different types welding residual natural frequency mode shape structure compared. Finally, effectiveness proposed model verified through finite element method.
Integration of process planning with scheduling by considering the manufacturing system's capacity, cost and capacity in its workshop is a critical issue. The concurrency between them can also eliminate redundant optimize entire production cycle, but most integrated methods only consider time aspects alternative machines when constructing schedules. In this paper, fuzzy inference system (FIS) choosing for job shop presented. Instead randomly, are being selected based on reliability. mean to...