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学者姓名：聂松林
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摘要 ：
Machine learning (ML) methods are becoming popular in prognostics and health management (PHM) of engi-neering systems due to the recent advances of sensor technology and the prevalent use of artificial neural net-works. In practice, mechatronic systems are by nature, prone to degradation/failure due to complex failure mechanisms and other unknown causes. As a result, degradation modeling and prediction of mechatronic sys-tems are quite challenging especially when highly integrative and special operational conditions are considered. To overcome such challenges, artificial neural networks can be employed. This paper proposes the use of a long short-term memory (LSTM)-based multi-input neural network for degradation modeling and prediction of an Electro-Hydrostatic Actuator (EHA) system. The failure mechanisms of the EHA system are explored first, and the obtained physics-of-failure information is utilized in constructing the LSTM neural network to enhance the prediction capability of the model. An actual dataset collected from an EHA test bench is utilized to illustrate the effectiveness of the proposed physics-informed LSTM method for modeling the EHA system's degradation behavior. The result shows that the proposed method provides more accurate life prediction than several benchmark methods for the EHA system.
关键词 ：
Degradation assessment Degradation assessment Feature extraction Feature extraction Long short-term memory Long short-term memory Machine learning Machine learning Electro-hydrostatic actuator Electro-hydrostatic actuator
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| GB/T 7714 | Ma, Zhonghai , Liao, Haitao , Gao, Jianhang et al. Physics-Informed Machine Learning for Degradation Modeling of an Electro-Hydrostatic Actuator System [J]. | RELIABILITY ENGINEERING & SYSTEM SAFETY , 2023 , 229 . |
| MLA | Ma, Zhonghai et al. "Physics-Informed Machine Learning for Degradation Modeling of an Electro-Hydrostatic Actuator System" . | RELIABILITY ENGINEERING & SYSTEM SAFETY 229 (2023) . |
| APA | Ma, Zhonghai , Liao, Haitao , Gao, Jianhang , Nie, Songlin , Geng, Yugang . Physics-Informed Machine Learning for Degradation Modeling of an Electro-Hydrostatic Actuator System . | RELIABILITY ENGINEERING & SYSTEM SAFETY , 2023 , 229 . |
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摘要 ：
Aiming at the problem of low-frequency vibration of the hydraulic pipeline, a new type of semi-active damping magnetorheological (MR) damping clamp structure is designed. The structure size and material of the MR damping clamp were determined. The control model of the vibration damping system was established, and the control method combining fuzzy control and Proportional-Integral-Derivative (PID) control was used to carry out the numerical simulation, which proved that the fuzzy-PID control algorithm is effective and stable. The results show that the MR damping clamp proposed in this paper can effectively suppress the axial displacement and acceleration of the hydraulic pipeline in the excitation frequency range of 1 Hz-10 Hz. This research provides a new technical approach for low-frequency vibration control of hydraulic pipelines.
关键词 ：
semi-active vibration control semi-active vibration control fuzzy-PID fuzzy-PID MR damping clamp MR damping clamp low-frequency vibration low-frequency vibration hydraulic pipeline hydraulic pipeline
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| GB/T 7714 | Gong, Fei , Nie, Songlin , Ji, Hui et al. Pipeline Vibration Control Using Magnetorheological Damping Clamps under Fuzzy-PID Control Algorithm [J]. | MICROMACHINES , 2022 , 13 (4) . |
| MLA | Gong, Fei et al. "Pipeline Vibration Control Using Magnetorheological Damping Clamps under Fuzzy-PID Control Algorithm" . | MICROMACHINES 13 . 4 (2022) . |
| APA | Gong, Fei , Nie, Songlin , Ji, Hui , Hong, Ruidong , Yin, Fanglong , Yan, Xiaopeng . Pipeline Vibration Control Using Magnetorheological Damping Clamps under Fuzzy-PID Control Algorithm . | MICROMACHINES , 2022 , 13 (4) . |
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摘要 ：
In this research, a hybrid of surrogate model and Multi-island genetic algorithm (MIGA) is proposed for optimization and compensation of steady-state flow force on water hydraulic high-speed on-off valve (HSV) driven by voice coil motor. Firstly, a dynamic model on the spool of HSV is established, and the effects of spool displacement, spool half-cone angle, valve stem diameter and inlet pressure on the steady-state flow force of HSV are analyzed through the CFD simulation. Secondly, a quadratic response surface model is set up based on design of experiment (DOE) to analyze interactions of key parameters on steady-state flow force. MIGA is proposed to optimise the structural parameters of HSV, and the optimization results are analyzed and verified by CFD simulations. Simulation results demonstrate that the steady-state flow force is reduced significantly. Finally, the steady-state flow force in the optimized structure of HSV is also verified experimentally. The experiment results exhibit that the optimized spool can compensate about 71% for the steady-state flow force, then reduce about 15% the energy consumption of HSV. This research will provide the guide for the design and engineering application of HSV.
关键词 ：
Energy consumption Energy consumption Water hydraulic HSV Water hydraulic HSV Surrogate model Surrogate model Multi-island genetic algorithm Multi-island genetic algorithm Steady-state water flow force Steady-state water flow force
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| GB/T 7714 | Nie, Songlin , Hong, Ruidong , Ji, Hui et al. A hybrid of surrogate model and MIGA method for optimization and compensation of steady-state flow force on water hydraulic HSV [J]. | FLOW MEASUREMENT AND INSTRUMENTATION , 2022 , 86 . |
| MLA | Nie, Songlin et al. "A hybrid of surrogate model and MIGA method for optimization and compensation of steady-state flow force on water hydraulic HSV" . | FLOW MEASUREMENT AND INSTRUMENTATION 86 (2022) . |
| APA | Nie, Songlin , Hong, Ruidong , Ji, Hui , Liu, Qingtong , Nie, Shuang . A hybrid of surrogate model and MIGA method for optimization and compensation of steady-state flow force on water hydraulic HSV . | FLOW MEASUREMENT AND INSTRUMENTATION , 2022 , 86 . |
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摘要 ：
Rotary energy recovery devices (RERDs) play a significant role in reducing the consumption of energy used in the desalination of seawater by reverse osmosis (SWRO). An integrated energy recovery and pressure boost device (IERPBD) applied to the recovery of hydraulic energy from the concentrated brine and pressurizes synchronously the seawater is introduced. To address the complex motion of the multiple lubricating gaps in IERPBD, especially piston ball/slipper and slipper/swashplate interfaces, an innovative computational fluid dynamics (CFD) model based on User Defined Function (UDF) is originally proposed. The characteristics of pressure, flow and mixing are analyzed to reveal the influence of multiple lubricating gaps leakage and mixing on energy recovery process. In addition, a SWRO system is built to investigate the effect of operating parameters and seawater salinities on the energy recovery and mixing properties of the IERPBD, and its structural parameters are optimized by parametric study, which further reveals the comprehensive characteristics of the IERPBD. The results indicate that the proposed CFD methodology can precisely analyze the energy loss and mixing properties of RERDs, and the utilization of IERPBD can diminish 25.7% of the energy consumption of SWRO system with 24.2% freshwater recovery ratio and 10 m(3)/d freshwater production.
关键词 ：
Lubricating gaps Lubricating gaps Mixing Mixing Energy loss Energy loss Computational fluid dynamics Computational fluid dynamics SWRO system SWRO system Rotary energy recovery device Rotary energy recovery device
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| GB/T 7714 | Lou, Fangli , Nie, Songlin , Yin, Fanglong et al. Numerical and experimental research on the integrated energy recovery and pressure boost device for seawater reverse osmosis desalination system [J]. | DESALINATION , 2022 , 523 . |
| MLA | Lou, Fangli et al. "Numerical and experimental research on the integrated energy recovery and pressure boost device for seawater reverse osmosis desalination system" . | DESALINATION 523 (2022) . |
| APA | Lou, Fangli , Nie, Songlin , Yin, Fanglong , Lu, Wang , Ji, Hui , Ma, Zhonghai et al. Numerical and experimental research on the integrated energy recovery and pressure boost device for seawater reverse osmosis desalination system . | DESALINATION , 2022 , 523 . |
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摘要 ：
该文对船用高压细水雾灭火泵柱塞副开展了受力分析,在综合考虑摩擦力和摩擦升温的前提下建立了柱塞副的泄漏量和热平衡分析模型,开展了不同柱塞副间隙和工况下柱塞副的热平衡分析并获得了相应的变化规律,并对柱塞副的初始配合间隙进行了优化,提出了避免柱塞副卡死的技术措施,研究结果可以为船用高压细水雾灭火泵柱塞副的结构优化,提高柱塞泵综合性能提供理论依据.
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| GB/T 7714 | 王海清 , 贾国涛 , 聂松林 et al. 船用高压细水雾灭火泵柱塞副间隙的优化设计 [J]. | 液压气动与密封 , 2021 , 41 (10) : 4-8,14 . |
| MLA | 王海清 et al. "船用高压细水雾灭火泵柱塞副间隙的优化设计" . | 液压气动与密封 41 . 10 (2021) : 4-8,14 . |
| APA | 王海清 , 贾国涛 , 聂松林 , 尹方龙 . 船用高压细水雾灭火泵柱塞副间隙的优化设计 . | 液压气动与密封 , 2021 , 41 (10) , 4-8,14 . |
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摘要 ：
液压摆动缸作为水下机械臂的核心部件之一,是机械臂的重要执行与能量转换机构。目前的液压摆动缸主要依靠油压驱动,存在与海洋环境不相容和易发生腐蚀磨损失效等诸多问题,因此提出了一种以水作为传动介质的液压摆动缸。研究了水压摆动缸关键部位的密封形式,并建立高速开关阀控摆动缸AMESim模型,分析了批处理的单参数对阀控缸系统跟随特性的影响;然后利用AMESim和Simulink联合仿真技术,建立了联合仿真模型。通过联合仿真解决了传统MATLAB仿真中难以建立精确数学模型的问题,加入PID控制器,使得系统响应速度加快,超调减小,抗干扰能力提高,跟随性能提高。
关键词 ：
仿真分析 仿真分析 水液压 水液压 摆动液压缸 摆动液压缸 动态特性 动态特性 AMESim AMESim
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| GB/T 7714 | 张天 , 葛卫 , 聂松林 et al. 水液压阀控摆动缸结构设计及动态性能仿真分析 [J]. | 液压与气动 , 2021 , 45 (07) : 28-34 . |
| MLA | 张天 et al. "水液压阀控摆动缸结构设计及动态性能仿真分析" . | 液压与气动 45 . 07 (2021) : 28-34 . |
| APA | 张天 , 葛卫 , 聂松林 , 尹方龙 , 李开福 , 贾国涛 . 水液压阀控摆动缸结构设计及动态性能仿真分析 . | 液压与气动 , 2021 , 45 (07) , 28-34 . |
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摘要 ：
Accelerated life testing (ALT) and accelerated degradation testing (ADT) are two widely used accelerated testing (AT) methods for reliability evaluation of highly reliable products. However, in many cases, it is difficult to meet the estimation requirements only using ALT or ADT because of the nature of data and the test constraints. Since both ALT and ADT data provide useful reliability information, it would be quite valuable to use both of them for reliability estimation. In this paper, an optimal testing plan is proposed for the first time for such a hybrid AT under several experimental design constraints. An Inverse Gaussian (IG) process and the corresponding lifetime distribution are used to model the degradation process and the lifetime of the product, respectively. The strategy of allocating the test units to ALT and ADT and determining the data collection strategy in the experiment are presented. The objective is to maximize the estimation precision of the p-quantile of the product's lifetime under the normal use condition. A study on the stress relaxation of a type of electrical connector is conducted to illustrate the value of the proposed method in practice. © 2021 Elsevier Ltd
关键词 ：
Electric connectors Electric connectors Inverse problems Inverse problems Reliability Reliability Stress relaxation Stress relaxation Testing Testing
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| GB/T 7714 | Ma, Zhonghai , Liao, Haitao , Ji, Hui et al. Optimal design of hybrid accelerated test based on the Inverse Gaussian process model [J]. | Reliability Engineering and System Safety , 2021 , 210 . |
| MLA | Ma, Zhonghai et al. "Optimal design of hybrid accelerated test based on the Inverse Gaussian process model" . | Reliability Engineering and System Safety 210 (2021) . |
| APA | Ma, Zhonghai , Liao, Haitao , Ji, Hui , Wang, Shaoping , Yin, Fanglong , Nie, Songlin . Optimal design of hybrid accelerated test based on the Inverse Gaussian process model . | Reliability Engineering and System Safety , 2021 , 210 . |
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摘要 ：
Abstract Seawater hydraulic axial piston pump (SHAPP) is a critical power component in underwater operating systems. A parameterized elasto-hydrodynamic (EHD) lubrication model of the piston/cylinder tribopair in the SHAPP is originally established, which considers the elasto-hydrodynamic behavior, viscosity temperature effect and deep-sea environmental pressure. The deformation of piston bush, bearing mechanism and energy loss characteristics of the water film under different operating conditions are discussed. The results show that the deformation of piston bush made of polyetheretherketone (PEEK) is in micron-scale under water film and deep-sea pressure, which could increase the leakage and viscous friction power loss of piston/cylinder tribopair. In deep-sea environment, the leakage and viscous friction power loss calculated by EHD are always greater than those calculated by hydrodynamic (HD), and increase with the increase of working pressure, shaft speed, gap size, sea depth and piston bush thickness. Besides, the increase of sea surface temperature could increase the leakage and decrease the viscous friction power loss of the piston/cylinder tribopair, respectively. Finally, design instructions to optimize the piston/cylinder tribopair are presented, therefore the proposed methodology can be used as a designing tool for SHAPP. © 2020 Elsevier Ltd
关键词 ：
Deformation Deformation Elastohydrodynamic lubrication Elastohydrodynamic lubrication Energy dissipation Energy dissipation Fluid structure interaction Fluid structure interaction Friction Friction Hydrodynamics Hydrodynamics Oceanography Oceanography Pistons Pistons Reciprocating pumps Reciprocating pumps Seawater Seawater Surface waters Surface waters
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| GB/T 7714 | Nie, Songlin , Guo, Ming , Yin, Fanglong et al. Research on fluid-structure interaction for piston/cylinder tribopair of seawater hydraulic axial piston pump in deep-sea environment [J]. | Ocean Engineering , 2021 , 219 . |
| MLA | Nie, Songlin et al. "Research on fluid-structure interaction for piston/cylinder tribopair of seawater hydraulic axial piston pump in deep-sea environment" . | Ocean Engineering 219 (2021) . |
| APA | Nie, Songlin , Guo, Ming , Yin, Fanglong , Ji, Hui , Ma, Zhonghai , Hu, Zhen et al. Research on fluid-structure interaction for piston/cylinder tribopair of seawater hydraulic axial piston pump in deep-sea environment . | Ocean Engineering , 2021 , 219 . |
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摘要 ：
Integrated rotary energy recovery-pressure boost device (IERPBD) is the essential component in seawater reverse osmosis (SWRO) desalination systems. And sliding bearing pair is the vital tribopair in the IERPBD, which guarantee the reliability of the device. However, the polyetheretherketone (PEEK) bearing in the IERPBD occurred early failure during the pre-experiment. To solve this problem, this paper firstly analyzed the reasons and mechanisms of sliding bearing early failure, which suggested that it was attributed to the low elasticity modulus and poor tribological performance of PEEK. Moreover, several improved "hard-to-hard" material combinations were proposed and screened through wear and friction experiments, and found that the WC-6Ni (YN6X)/silicon carbide (SiC) material combination has reasonable physicochemical properties and excellent tribological performance. Finally, the sliding bearing made of YN6X/SiC was equipped in IERPBD to carry out experiments under real working conditions to verify the performance of proposed material combination. The results indicated that YN6X/SiC sliding bearing pair could guarantee the continuous and stable operation of IERPBD, and effectively solve the sliding bearing failure problem.
关键词 ：
Ceramics Ceramics Cermets Cermets Failure analysis Failure analysis Seawater reverse osmosis desalination Seawater reverse osmosis desalination Sliding bearing Sliding bearing
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| GB/T 7714 | Yin, Fanglong , Lu, Wang , Nie, Songlin et al. Failure analysis and improvement of the tribological performance of sliding bearing tribopair in integrated energy recovery-pressure boost device [J]. | CERAMICS INTERNATIONAL , 2021 , 47 (21) : 30367-30380 . |
| MLA | Yin, Fanglong et al. "Failure analysis and improvement of the tribological performance of sliding bearing tribopair in integrated energy recovery-pressure boost device" . | CERAMICS INTERNATIONAL 47 . 21 (2021) : 30367-30380 . |
| APA | Yin, Fanglong , Lu, Wang , Nie, Songlin , Lou, Fangli , Ji, Hui , Ma, Zhonghai . Failure analysis and improvement of the tribological performance of sliding bearing tribopair in integrated energy recovery-pressure boost device . | CERAMICS INTERNATIONAL , 2021 , 47 (21) , 30367-30380 . |
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摘要 ：
The mechanism of the self-excited oscillation pulsed jet is still in a period of continuous improvement, and the application breadth and depth of the self-excited oscillation nozzle are significantly limited since the turbulent flow field inside the self-excited oscillation nozzle is exceptionally complex. In this study, computational fluid dynamics numerical simulation and experimental research methods are combined. By changing the structural parameters of self-excited oscillating nozzles, the velocity and pressure characteristics of the self-excited oscillating nozzles were compared and analyzed to determine the important factors that influenced the effect of pulsed jet. These findings demonstrated that the periodic expansion and contraction of the low-pressure vortex ring in the self-excited oscillation nozzle chamber will cause the pressure of the nozzle outlet section to change periodically. The periodic high-voltage blocking and low-pressure speedup of the outlet directly correlate with the pulsed jet. This study shows the reasonable size design range of the self-excited oscillation nozzle, which can guide the design and practical application of the nozzle, as well as provide the theoretical basis for perfecting the self-excited oscillation pulsed jet theory. © 2020, The Brazilian Society of Mechanical Sciences and Engineering.
关键词 ：
Computational fluid dynamics Computational fluid dynamics Computation theory Computation theory Nozzle design Nozzle design Numerical methods Numerical methods Oscillating flow Oscillating flow Rocket nozzles Rocket nozzles Turbulent flow Turbulent flow Vortex flow Vortex flow
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| GB/T 7714 | Zhang, Xiaojun , Li, Xiaqing , Nie, Songlin et al. Study on velocity and pressure characteristics of self-excited oscillating nozzle [J]. | Journal of the Brazilian Society of Mechanical Sciences and Engineering , 2021 , 43 (1) . |
| MLA | Zhang, Xiaojun et al. "Study on velocity and pressure characteristics of self-excited oscillating nozzle" . | Journal of the Brazilian Society of Mechanical Sciences and Engineering 43 . 1 (2021) . |
| APA | Zhang, Xiaojun , Li, Xiaqing , Nie, Songlin , Wang, Liping , Dong, Jianghui . Study on velocity and pressure characteristics of self-excited oscillating nozzle . | Journal of the Brazilian Society of Mechanical Sciences and Engineering , 2021 , 43 (1) . |
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