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Articles 9631 - 9660 of 11603
Full-Text Articles in Artificial Intelligence and Robotics
Current Sensor Fault Diagnosis For Induction Motor In Vector Control System, Sun Kai, Baina He, Sarah Odofin, Gu Yu
Current Sensor Fault Diagnosis For Induction Motor In Vector Control System, Sun Kai, Baina He, Sarah Odofin, Gu Yu
Journal of System Simulation
Abstract: A current sensor fault diagnosis method of induction motor in vector control system is proposed. A state-space form including sensor faults and environmental disturbances/noises of induction machine is described. An augmented observer is designed to simultaneously estimate system states, and current sensor faults. To attenuate the effects from the environmental disturbances/noises, a genetic algorithm is employed to design observer gain by minimizing the estimation error against environmental disturbances and noises. A simulation model based on Matlab and real-data of the induction motor collected by experiment is utilized to validate the proposed methods, which show the efficiency of the proposed …
Simulation On Anti-Swing Of Container Cranes Based On Iterative Learning Control, Liang Gang, Yiming Zhao, Hengming Qin
Simulation On Anti-Swing Of Container Cranes Based On Iterative Learning Control, Liang Gang, Yiming Zhao, Hengming Qin
Journal of System Simulation
Abstract: To achieve the purpose of reducing or even eliminating the fixed stop container’s swinging after container cranes positioning, thereby improving the efficiency of quayside container cranes, the PD-type iterative learning control is selected to perform simulation analysis. This selection is based on the analysis of dynamic properties of quayside container lifting systems and the qualities of the repetitive nature of the swing phase of the container. A fixed initial state is assumed, and the PD parameters are determined after several debugging tasks. Based on Simulink blocks, the entire iterative learning controller model is established to design lifting systems of …
Simulation And Experimental Verification Of Grinding Force Based On Different Directions Of Ultrasonic Vibration, Wang Yan, Qin Chen, Jianguo Liu, Shuiping Peng, Delin Li
Simulation And Experimental Verification Of Grinding Force Based On Different Directions Of Ultrasonic Vibration, Wang Yan, Qin Chen, Jianguo Liu, Shuiping Peng, Delin Li
Journal of System Simulation
Abstract: The method based on variable angle of ultrasonic vibration assisted grinding was put forward to identify the relationship between direction of ultrasonic vibration and grinding force. The trajectory of grit in contact zone was analyzed. The stress field of contact zone and the grinding force, which were based on the different directions of ultrasonic vibration, were simulated and analyzed by Deform-3D. A series of grinding experiments of GCr15 were conducted. It demonstrates that with the angle α increasing, the grinding force firstly decreased and then increased. The experiment results showed that the error of normal force is 5.23% and …
Block-Based Evolutionary Algorithm For Permutation Flow-Shop Scheduling Problem, Xiaobing Pei, Zhao Heng
Block-Based Evolutionary Algorithm For Permutation Flow-Shop Scheduling Problem, Xiaobing Pei, Zhao Heng
Journal of System Simulation
Abstract: To solve the permutation flow-shop scheduling problem(PFSP), an effective new global evolutionary algorithm based on block model is developed. The probability model is built based on the information of job position through sample and statistic on the good chromosomes, and the association rule is applied to extract continuous or discontinuous blocks which contain job information respectively. The superiority blocks with position probability model for artificial chromosome combinations are integrated. The disadvantage gene is excavated according to the inferior chromosome and used for the later mutation operation. Two efficient local search methods called position model-based interchange and NEH-based insertion are …
Modeling And Realization Of Acoustic Signal Separation Simulation System Based On Systemvue, Xiaorong Tong
Modeling And Realization Of Acoustic Signal Separation Simulation System Based On Systemvue, Xiaorong Tong
Journal of System Simulation
Abstract: Aiming at the practical requirements of blind separation process of acoustic signals, a modeling method of acoustic signals separation simulation system based on SystemVue simulation platform is proposed according to specific mode of signal separation and acoustic sensor network layout in the practical work. It provides a novel signal separation algorithm based on signal single source detection which is the improvement of FastICA algorithm. It also can obtain the source acoustic signals without the information of signal source numbers. The SystemVue software is used to model the net of acoustic sensors, and the target simulation information is generated at …
Air Admission Feature And Discharge Coefficient Of Fixed Conical Valve, Chengbiao Tong, Zhixiong Zhou, Qiuxia Yan
Air Admission Feature And Discharge Coefficient Of Fixed Conical Valve, Chengbiao Tong, Zhixiong Zhou, Qiuxia Yan
Journal of System Simulation
Abstract: The complicated flow pattern is existent in fixed conical valve. When the high speed jet flowing near the diversion cone injects the sudden enlargement area, the severe vortex and evident negative pressure are generated. To reduce or eliminate the negative pressure area, the admission pipe should be installed. For clarifying the air admission and flow rule beyond air admission, a calculation mathematical model is built, the basic law of negative pressure generation and air admission is obtained; CFD is adopted to certify that the admission pipe is efficient to restrain the negative pressure; under air admission condition, the two-phase …
Effect Of Rail Fracture On Train Shunt-Circuit Current Envelope, Youpeng Zhang, Zhao Jian, Bin Zhao
Effect Of Rail Fracture On Train Shunt-Circuit Current Envelope, Youpeng Zhang, Zhao Jian, Bin Zhao
Journal of System Simulation
Abstract: To analyze change rules of train shunt-circuit current amplitude envelope under the track circuit crack state, a distributed parameter equivalent mathematic model of ZPW-2000A track circuit crack state was constructed based on the transmission theory; and the effect of ballast resistances, the crack points and the crack equivalent impedances on train shunt-circuit currents amplitude envelope were studied using MATLAB. Experiment results show that the ballast resistance, the crack point and the crack equivalent impedance have great influence on train shunt-circuit current amplitude envelope before crack point; and the train shunt-circuit current amplitude envelope occurs discontinuity at the crack …
Simulation And Verification Of Feasibility For The Torsional Vibration System Test Scheme, Yin Meng, He Yun, Zhigang Xu, Shixuan Zhang
Simulation And Verification Of Feasibility For The Torsional Vibration System Test Scheme, Yin Meng, He Yun, Zhigang Xu, Shixuan Zhang
Journal of System Simulation
Abstract: To test the loading accuracy of the directional device for the experiment system, a test scheme of torsional vibration system is proposed. To verify the feasibility for assessing the loading accuracy through the test scheme, a dynamics and control system model is established and simulated in the condition of ignoring torsion bar flexibility and friction; an Adams model is established and simulated in consideration of the torsion bar flexibility and friction. Both simulation results are obtained and analyzed. When the load torque amplitude reaches 30Nm, the disturbance torques under a certain frequency are all below 2Nm, which meets …
Improved Intelligent Water Drops Algorithm Applied To Power Economic Emission Dispatch, Wenqing Zhao, Zhibu Qin
Improved Intelligent Water Drops Algorithm Applied To Power Economic Emission Dispatch, Wenqing Zhao, Zhibu Qin
Journal of System Simulation
Abstract: Multi-objective optimization for power economic emission dispatch aimed at minimizing the economic costs of power generation and gas emissions. To solve the problems of low search performance and easy to fall into local optimal solution with intelligent water drops algorithm for continuous optimization process, an improved intelligent water drops algorithm based on simulated annealing method was introduced. The improved algorithm had a better advantage in the number of iterations and the search for solutions. The proposed approach verified by Matlab simulation was applied to IEEE-30 bus test system with 6 generating units to solve the multi-objective optimization problem of …
Bi-Directional Dc-Dc Converter For Battery Energy Storage, Kun Xia, Xinwei Hong, Yuan Yin, Anghui Chen
Bi-Directional Dc-Dc Converter For Battery Energy Storage, Kun Xia, Xinwei Hong, Yuan Yin, Anghui Chen
Journal of System Simulation
Abstract: A topology of non-isolated bi-directional DC-DC converter is proposed. The converter adopts the synchronous rectifier half bridge buck-boost circuit as the foundation using the voltage and current double closed-loop control method to achieve the function of the lithium batteries charging and discharging. The working principles of the DC-DC converter are analyzed under the charging mode, discharging mode and parallel supply mode. The simulation model for the converter circuit is established in Matlab/Simulink circumstance and the system experiment is built. The simulation and experiment verifies the feasibility and the reliability of the converter. The simulation results show that …
Mathematical Modeling And Simulation Of Hydraulic Gauge Control System, Weigang Li, Guilin Tao
Mathematical Modeling And Simulation Of Hydraulic Gauge Control System, Weigang Li, Guilin Tao
Journal of System Simulation
Abstract: On the basis of hydraulic valve control cylinder model and combining with the structure and load characteristics of the hydraulic gauge control system (HGC), a “flow linearization” model for HGC was presented and the shortcomings of the model in analyzing the dynamic characteristics of HGC were pointed out. In view of the characteristics of the large load variation range of HGC and according to the principle of “load compensation”, the flow correction coefficient and the related transfer function were analyzed and deduced, and the mathematical model of HGC based on “load compensation” was established. Combined with a practical …
Simple Chaotic Circuit Based On Memristance Function With Real Exponents Power, Xiaohong Zhang, Yanli Qi
Simple Chaotic Circuit Based On Memristance Function With Real Exponents Power, Xiaohong Zhang, Yanli Qi
Journal of System Simulation
Abstract: The simplest chaotic circuit contains only three circuit elements: a linear passive inductor, a linear passive capacitor and a nonlinear active memristor. In the design of memristors, power of memristance function polynomial with integral exponents is commonly used. On this basis, a general memristor is designed, of which the memristance function polynomial uses power with real exponents, a simple chaotic system is constructed based on the designed memristor. The influence of integral exponents, real exponents and linear parameters on dynamic behaviors is investigated, and chaotic behaviors are analyzed qualitatively using Lyapunov exponents. The Matlab and Multisim simulation results show …
Simulation Research Of Closed Control System For Equipment Operation And Maintenance With Parts Inventory System, Li Bing, Wang Xing, Xuan Hua, Xueyuan Wang
Simulation Research Of Closed Control System For Equipment Operation And Maintenance With Parts Inventory System, Li Bing, Wang Xing, Xuan Hua, Xueyuan Wang
Journal of System Simulation
Abstract: The highly reliable equipment operation and maintenance system is very important to enterprise’s safety production. The control system for equipment operation and maintenance with a parts inventory system is generally discussed. The proposed system is composed of a parts inventory subsystem, an equipment operation subsystem and an equipment maintenance subsystem as parallel and series form. And the control system belongs to a multi-level closed loop system. The system is a kind of discrete event dynamic system. So it is difficult to be described with traditional mathematical analysis methods. The multi-class closed control system simulation model is established with Simulink …
Error Estimation For Material Simulation Data Based On Hybrid Learning Algorithm, Wang Juan, Xiaoyu Yang, Zongguo Wang, Ren Jie, Xushan Zhao
Error Estimation For Material Simulation Data Based On Hybrid Learning Algorithm, Wang Juan, Xiaoyu Yang, Zongguo Wang, Ren Jie, Xushan Zhao
Journal of System Simulation
Abstract: In order to obtain high quality material simulation data from Density Functional Theory material calculation software package, a modeling method based on BP neural network was proposed to build model estimating the error of material simulation data. A novel hybrid algorithm combining simple particle swarm optimization algorithm that excludes speed item with BP algorithm, also referred to tsPSO-BP, was proposed to optimize the connection weights of the BP neural network. The hybrid learning algorithm not only makes use of strong global searching ability of the PSO, but also strong local searching ability of the BP algorithm. The BP …
Research On Fault-Tolerant Flight Control Computer System Based On Dynamic Reconfiguration, Xiaozhe Sun, Zongji Chen, Yongliang Gu
Research On Fault-Tolerant Flight Control Computer System Based On Dynamic Reconfiguration, Xiaozhe Sun, Zongji Chen, Yongliang Gu
Journal of System Simulation
Abstract: The fault-tolerant Fly-By-Wire flight control systems of four advanced aircrafts of Boeing and Airbus series (B777, B787, A340 and A380) were analyzed and compared. The disadvantages needed to be improved were explored in terms of software reliability and system reconfiguration of Boeing and Airbus Fly-By-Wire flight control systems. A novel redundant fault-tolerant flight control computer (FCC) system was presented. The proposed FCC scheme was qualitatively and quantitatively compared with redundant FCC of Boeing and Airbus. The three schemes' reliability was modelled and evaluated through the hierarchical hybrid modelling method. The conclusions are obtained as follows: the proposed …
Simulation Research On Predictive Wavelet Neural Network Intelligent Control System, Jingwei Liu, Zhou Rui, Zhao Hui, Minling Zhu, Xianghua Meng, Yuhao Zhang
Simulation Research On Predictive Wavelet Neural Network Intelligent Control System, Jingwei Liu, Zhou Rui, Zhao Hui, Minling Zhu, Xianghua Meng, Yuhao Zhang
Journal of System Simulation
Abstract: In order to realize control parameters online tuning and optimizing applications in the high risk and high pollution environment, vector time series prediction based intelligent control methods are proposed, which are combined autoregressive moving average vector time series predictive method and wavelet neural network method. Based on theoretical and comparative research: feasibility, stability, better dynamic characteristics, less steady-state error of the proposed methods are verified. A comparative simulation platform for the above intelligent control system is provided. Stability guarantee method of the above new methods is given.
Hybrid Decoding Algorithm For Low-Density Parity-Check Codes, Guowei Qu, Xiaoping Song
Hybrid Decoding Algorithm For Low-Density Parity-Check Codes, Guowei Qu, Xiaoping Song
Journal of System Simulation
Abstract: A hybrid decoding algorithm for low-density parity-check (LDPC) codes based on the soft-decision iterative decoding method and the erasure decoding method is proposed. If a decoding error is detected when the maximum iteration number of the soft-decision iterative decoding is reached, a decision is made on each bit whether it is zero or one or an erasure according to the cumulative reliability of the bit in the iterative process. Then the decision result is decoded with erasure decoding. Simulation results on random LDPC codes with moderate length indicate that the proposed hybrid decoding algorithm outperforms the traditional soft-decision iterative …
Parallel Pattern Recognition Of Leak Current Data Using Spark-Knn, Li Li, Yongli Zhu, Yaqi Song
Parallel Pattern Recognition Of Leak Current Data Using Spark-Knn, Li Li, Yongli Zhu, Yaqi Song
Journal of System Simulation
Abstract: With the rapid development of smart grid, the status monitoring data of power grid equipment increase exponentially and gradually form the big data. Traditional computing architectures are no longer to meet the demand of computing performance. This paper explores how Spark and Cloud computing can accelerate performance of missive insulator leak current data pattern recognition. The Parallel KNN (k-Nearest Neighbor) algorithm is designed and implemented by using Spark and Aliyun E-MapReduce cloud computing platform. The results from experiments show that the performance of Spark-KNN is 2.97 times of MapReduce-KNN and gains acceleration of 8.8 times. The experimental results confirm …
Stress Distribution Formula Of Threads Casing Joint Under Symmetrical Load, Tong Hua, Xiaohong Tang, Xiaohua Zhu, He Huan, Haoran Tao
Stress Distribution Formula Of Threads Casing Joint Under Symmetrical Load, Tong Hua, Xiaohong Tang, Xiaohua Zhu, He Huan, Haoran Tao
Journal of System Simulation
Abstract: While itis difficult tomeasure thestress distribution of casing threads underground without calculation by finite element method. Here assumes a deformation compatibility factor Ux, use an initial calculation to represent the thread stress, f(x)=f0Ux, and applythe ABAQUS finite element software to calculate the stress distribution of the threads under different symmetrical loads. Obtain the expressions of Ux by curve fitting, and get the threads stress calculation formula to provide an intuitive, fast and accurate method of calculation for the site. Providea theoretical reference for development and manufacture of casing …
Numerical Simulation Of Borehole Stability In Underbalanced Drilling Coal Seam, Yumei Li, Su Zhong, Zhang Tao, Delong Zhang, Liwei Yu, Si Na
Numerical Simulation Of Borehole Stability In Underbalanced Drilling Coal Seam, Yumei Li, Su Zhong, Zhang Tao, Delong Zhang, Liwei Yu, Si Na
Journal of System Simulation
Abstract: According to the formation parameters of No.3 coal seam in the Qinshui Basin, Shanxi Province, considering the interaction between seepage and deformation in the borehole wall of coal seam, using the finite element method for establishing the stable elastoplastic numerical model of the borehole in coal seam,the variation of pore pressure near the wellbore wall with the seepage time and the effect of time delay on wellbore stability under underbalanced drilling condition were studied. The variation law of maximum displacement and maximum plastic deformation around borehole wall with bottom pressure were analyzed. The simulation results show that there …
Improvement Of Grey Target Algorithm And Its Application In Assessment Of Marine Gas Turbine, Tongqing Wang, Mei Shan, Xiaobo Li, Jiajie Liu
Improvement Of Grey Target Algorithm And Its Application In Assessment Of Marine Gas Turbine, Tongqing Wang, Mei Shan, Xiaobo Li, Jiajie Liu
Journal of System Simulation
Abstract: In the modern shipbuilding industry, gas turbines are increasingly becoming the main power supply devices for ships with their good overall performance. The assessment of their overall performance is very important in the development and introduction of gas turbines. By using the grey target theory, a comprehensive gas turbine performance evaluation model is constructed and the grey target method can easily deal with the evaluation problem which has the characteristics of "small amount of data, lean information, and uncertainty". By discussing the influence of distinguishing coefficient in the algorithm, a method for determining the value of the distinguishing coefficient …
Impact Of Attractiveness And Influence Of Information On Cascade Size Distribution, Dong Jian, Bin Chen, Liu Liang, Chuan Ai, Zhang Fang, Xiaogang Qiu
Impact Of Attractiveness And Influence Of Information On Cascade Size Distribution, Dong Jian, Bin Chen, Liu Liang, Chuan Ai, Zhang Fang, Xiaogang Qiu
Journal of System Simulation
Abstract: The distribution of the cascade size can capture the distribution of popularity of a social network. Numerous studies have shown that the cascade size distribution follows fat-tail distributions, including power-law distribution and bimodal distribution; The underlying characteristic of this highly skewed distribution lacks quantitative experimental analysis. Based on the heterogeneous stochastic information dissemination model, namely the SVRF model, this paper examines the impact of the information attractiveness and influence on the cascade size distribution through lots of computational experiments. We find that when the mean value of the information influence and attractiveness is small, the cascade sizes follow …
Simulation Analyzing For Drawing Up Methodology Of Cooperative Train Working Diagram And Route Allocation Plan, Zhou Yan
Journal of System Simulation
Abstract: The quality of the train diagram directly affects the efficiency of the transport operation and management. Though the inadequacies of computer drawing train working diagram were reviewed, an integrated drawing up methodology of train diagram and train route allocation plan was put forward to optimize the allocation of resources, based on the interaction relationship of train diagram and train route allocation plan. On that basis, the overall state transition adjustment algorithm, which consists of the “full timetable” result and collaborative model route allocation plan, was also proposed. Finally, the prototype system framework based on .NET was described, and the …
Three-Dimensional Model Of Magnetostrictive Force Sensor Considering Stress Coupling And Experimental Research, Li Bo, Jiabin Yang, Shu Liang, Penghui Li, Wu Hong
Three-Dimensional Model Of Magnetostrictive Force Sensor Considering Stress Coupling And Experimental Research, Li Bo, Jiabin Yang, Shu Liang, Penghui Li, Wu Hong
Journal of System Simulation
Abstract: Considering the brittleness of normal magnetostrictive and piezoelectric materials, a new magnetostrictive force sensor is proposed, in which Galfenol alloy is taken as the sensing element. Considering the anisotropy of Galfenol, three-dimensional magneto-mechanical coupled model is presented on the basis of electromagnetic and mechanical governing equation. The nonlinear magnetization behavior of Galfenol is described by employing the discrete energy-averaged model. The coupling of the magnetization model and the structural model is implemented with the PDE weak form equations. The model is solved by using the weak form module of Comsol Multiphysics. Simulation results show that both field and stress …
Design Of Fault Tolerant Control Visual Simulation System For Flying Wing Aircrafts, Shaojie Zhang, Qingkai Meng
Design Of Fault Tolerant Control Visual Simulation System For Flying Wing Aircrafts, Shaojie Zhang, Qingkai Meng
Journal of System Simulation
Abstract: A visual simulation platform based on Qt Quick was designed with respect to the simulation about fault tolerant control for flying wing aircrafts. Aircraft mathematical model and control law were developed using Simulink. Man-machine interface was developed based on Qt Quick to inject fault to Simulink model, load control law, setting up the simulation parameters and process, the interface can monitor and display graphically the key parameters to test and verify fault tolerant control laws. FlightGear visual engine was driven by MATLAB to achieve real-time visual flight simulation and the aircraft were showed in 3-D model. Baidu Map’s API …
Multi-Constraint Service Selection Based On Decomposition Of Global Qos, Fang Chen, Jindong Wang, Hengwei Zhang, Wang Na
Multi-Constraint Service Selection Based On Decomposition Of Global Qos, Fang Chen, Jindong Wang, Hengwei Zhang, Wang Na
Journal of System Simulation
Abstract: With the rapid growth of Web services in cloud computing environment, users make new demands on dynamic service composition, that quickly selects composite service which can meet multi-constraints. According to the demand, a multi-constraint service selection method based on decomposition of global QoS was proposed. A new cultural genetic algorithm was designed to decompose the global QoS constraints, and services were filtered by combining with the functional constraints between candidate services. An adaptive replacement strategy was used to dynamically adjust QoS constraint boundaries, so as to ensure the most appropriate composite service obtained by local selection. Experimental results show …
Research On Impact Performance Of Layer-Number Of 2024 Aerospace Aluminum Alloy Immobilized Target Against Bird Strike, Jianxin Xu, Jiajun Yuan, Yunfei Deng
Research On Impact Performance Of Layer-Number Of 2024 Aerospace Aluminum Alloy Immobilized Target Against Bird Strike, Jianxin Xu, Jiajun Yuan, Yunfei Deng
Journal of System Simulation
Abstract: In order to investigate the anti-penetration performance of target plate of the same thickness under different number of layers, a model of SPH(Smoothed Particle Hydrodynamics) cylindrical bird bullet to impact 2024 aerospace aluminum alloy Lagrange target is established by using the AUTODYN finite element software. The thickness of target is 1 mm, 2 mm, 3 mm and 4 mm, 1 mm and 2 mm target plate is divided into single and double, 3 mm target plate is divided into single, double and three layers, 4 mm target plate is divided into single, double and four layers. …
Fault Co-Simulation Of Fuel Regulator In A Certain Type Of Turbofan Engine, Wei Xiang, Benwei Li, Xinyi Yang, Xingbo Wang
Fault Co-Simulation Of Fuel Regulator In A Certain Type Of Turbofan Engine, Wei Xiang, Benwei Li, Xinyi Yang, Xingbo Wang
Journal of System Simulation
Abstract: A co-simulation method for fuel regulator fault diagnosis in a certain type of turbofan engine is performed, which consists of AMEsim Model of main fuel control system and Simulink Model of aero-engine. The AMEsim Model of main fuel system and Simulink Model of aero-engine are built and their accuracy is validated by experiments and the engine’s operating data, respectively. The co-simulation model based on the main fuel control system and the aero-engine is proposed through the interface of AMEsim and Simulink software. The typical faults and obviation methods are simulated by the co-simulation model. The research shows that the …
Assessment And Verification Of Code-Carrier Coherence On Bds, Dongxia Li, Fuhan Song, Ruihua Liu
Assessment And Verification Of Code-Carrier Coherence On Bds, Dongxia Li, Fuhan Song, Ruihua Liu
Journal of System Simulation
Abstract: In order to verify code-carrier coherence on BeiDou Navigation Satellite System (BDS), the monitoring and assessment system of code-carrier coherence on BDS is designed. Code-Carrier Divergence (CCD) monitor is designed to detect the anomaly status of ionosphere, and based on the detection results, ionosphere delay error is eliminated by using Divergence-Free Smoothing (DFree) or Ionosphere-Free Smoothing (IFree) separately. The values of integer ambiguity are calculated based on tri-frequency ambiguity decomposition model, and the cycle slip is detected by using tri-frequency pseudorange code and combination of carrier phase. Assessment and verification of code-carrier coherence can be conducted. It is …
Analysis And Optimization Of Mr Damper Based On Parallel Of Positive And Negative Stiffness, Yanbin Liu, Yawei Wang, Jianhai Han
Analysis And Optimization Of Mr Damper Based On Parallel Of Positive And Negative Stiffness, Yanbin Liu, Yawei Wang, Jianhai Han
Journal of System Simulation
Abstract: For purpose of reducing broadband vibration of precision machine tool from environment, a MR damper with squeeze mode was designed based on parallel of positive and negative stiffness. First, according to fluid continuity equation and momentum equation, the LPM (Lumped Parameter Model) was set up. Then, using two-way fluid-solid coupled nonlinear FEA (Finite Element Analysis), the flow field distribution was discussed for revealing flow characteristics of damper. Based on the LPM, the dynamic stiffness and displacement transfer rate, as well as the high-low frequency decoupling theory, were studied. Finally, multi-objective genetic algorithm was used to carry out the optimization …