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Full-Text Articles in Physical Sciences and Mathematics

Generate Network’S Disjoint Mps Based On Simevents Simulation, Tang Jian, Fuli Ai, Faming Shao, Jiaojiao Zhang Jul 2020

Generate Network’S Disjoint Mps Based On Simevents Simulation, Tang Jian, Fuli Ai, Faming Shao, Jiaojiao Zhang

Journal of System Simulation

Abstract: The disjoint MPs (Minimal Path sets) algorithm proposed was improved from the point of signal transmission. The CoA network was transformed into a corresponding signal network, which was composed of forward and backward transmitting paths. According to the basic principle of disjoint MPs algorithm, a set of signal transmitting and rewriting rules, including forward and backward processing rules, were designed to make the disjoint MPs could be generated by means of DES (Discrete Event Simulation). The basic realizing idea was studied in SimEvents, in which, the entities acted as the information carriers, and the nodes as the …


Novel Algorithm Of High-Speed Target Isar Imaging Based On Stretch Method, Wenmao Luo, Yingliu Cui Jul 2020

Novel Algorithm Of High-Speed Target Isar Imaging Based On Stretch Method, Wenmao Luo, Yingliu Cui

Journal of System Simulation

Abstract: The pulse compression result will be distorted while the target moves very fast and it cannot get right ISAR images. A novel algorithm based on chirp-Fourier transform was proposed to solve this problem. In the scheme, every echo’s differential frequency signal of stretch processing was calculated by chirp-Fourier transform to estimate the target’s location and speed, and the target’s precious speed could be averaged by the estimations during the whole dwell time. Then the penalty function could be constructed to eliminate the intra and inter-pulse motion, and it could get right ISAR images. Because the chirp-Fourier transform was …


Design And Realization Of Radar Warning Receiver Modeling System, Limin Liu, Cheng Cheng, Zhuangzhi Han Jul 2020

Design And Realization Of Radar Warning Receiver Modeling System, Limin Liu, Cheng Cheng, Zhuangzhi Han

Journal of System Simulation

Abstract: According to the structure of the mainstream modern airborne radar warning receiver, a modeling method of radar warning receiver simulation system was proposed, and it realized by SystemVue. The system consists of radar signal interception, parameter estimation and signal sorting, and pulse description words can be obtained at last. The application of sorting method based on detection of single source point in the system improves the robustness. Simulation results verify the scheme feasibility.


Robust Flexible Job Shop Scheduling Method With Machine Breakdowns, Guohui Zhang, Lihui Wu, Nie Li, Yongcheng Wang Jul 2020

Robust Flexible Job Shop Scheduling Method With Machine Breakdowns, Guohui Zhang, Lihui Wu, Nie Li, Yongcheng Wang

Journal of System Simulation

Abstract: There are many uncertain events in the actual production process of flexible job shop, which affect the normal production and scheduling to achieve objective. According to the factor of the machine breakdown, two robustness measures combined with flexible job shop scheduling characteristics were proposed. One is considered as the initial schedule and the actual schedule makespan deviation, the other one is considered as each machine idle time and work load. The genetic algorithm was used to solve the problem, and the two parts chromosome coding was designed to avoid generating the illegal solution. Through the establishment of the probability …


Study Of Modified Particle Swarm Optimization Algorithm Based On Adaptive Mutation Probability, Huang Song, Tian Na, Zhicheng Ji Jul 2020

Study Of Modified Particle Swarm Optimization Algorithm Based On Adaptive Mutation Probability, Huang Song, Tian Na, Zhicheng Ji

Journal of System Simulation

Abstract: Mutation operator is an effective method to solve the premature of particle swarm optimization. According to the characteristic of population diversity, a modified particle swarm optimization based on adaptive mutation probability and hybrid mutation strategy was proposed. Aggregation degree was introduced to adjust the mutation probability of each generation, and a hybrid Gaussian and Cauchy mutation based on the global-best position and an adaptive wavelet mutation based on the worst personal-best position were carried out. The simulation of the comparisons with other particle swarm optimizations with mutation operator on matlab was proposed. The results demonstrate that the proposed algorithm …


Single Sign-On Model Based On Trusted-Daa Connection, Xiaohui Yang, Lijun Jiang, Wang Hong, Siyuan Chang Jul 2020

Single Sign-On Model Based On Trusted-Daa Connection, Xiaohui Yang, Lijun Jiang, Wang Hong, Siyuan Chang

Journal of System Simulation

Abstract: Traditional single sign-on (SSO) models adopt SSL connections in the cloud computing environments, while there exist several problems such as certificates cannot be updated in time, certificate updating needs a third party CA, etc.. To solve above problems, TPM was introduced between cloud identity providers and cloud service providers, and a trusted DAA connection (T-D-SSL) was designed by adopting the DAA authentication method to implementation cross platform trusted authentication, secure channel establishment, and certificate updating operation. Combining with T-D-SSL, SAML2.0, and ID-FF1.2, a new SSO model of the cloud computing environments was proposed, which could make sure the system …


Research On Development And Integration Method Of Bmds Integrated Test And Training Environment, Guoqiang Zhang, Xiaohe Liu, Fangting Jiang, Zhiping Li Jul 2020

Research On Development And Integration Method Of Bmds Integrated Test And Training Environment, Guoqiang Zhang, Xiaohe Liu, Fangting Jiang, Zhiping Li

Journal of System Simulation

Abstract: Building the BMDS integrated test and training environment is an effective means to quickly generate the combat effectiveness of BMDS. Aiming at the current situation that there was no unified development and integration method of the BMDS integrated test and training environment, based on systematic analysis to the capability requirements of the method, the development and integration method of pure digital simulation based on Integrated Non-Real-time Simulation Environment (INRS) and LVC simulation based on Integrated Real-time Simulation Environment (IRSE ) was put forward, and the technologies of adaptor was focused on. The integrated development and integration not only of …


Novel Access Control And Interference Alignment Based Mimo Link Scheduling Algorithm, Zui Xiong, Keren Wang, Jin Hu, Xu Yun Jul 2020

Novel Access Control And Interference Alignment Based Mimo Link Scheduling Algorithm, Zui Xiong, Keren Wang, Jin Hu, Xu Yun

Journal of System Simulation

Abstract: Interference alignment (IA) attracts global attention for its capability of improving the throughput of MIMO systems. To ensure the system stability, researchers proposed access control and IA combined in link scheduling. In order to compensate for the deficiency of minimum interference leakage IA (MinL-IA) algorithm in terms of the expected signal gain, an alternative IA algorithm named MaxSINR-IA combined with access control was applied, and a novel semi-distributed scheduling algorithm(SDSIA-MaxSINR) algorithm was proposed. The theoretical analysis and simulation results demonstrate that SDSIA-MaxSINR algorithm is evidently superior to SDSIA-MinL algorithm in a higher SINR requirement, although MaxSINR-IA is inferior to …


Research Of Visualization Of Road Guide Sign Panel Based On Combination Of Guiding Information, Zhongming Niu, Huang Min, Yuan Yuan, Li Min Jul 2020

Research Of Visualization Of Road Guide Sign Panel Based On Combination Of Guiding Information, Zhongming Niu, Huang Min, Yuan Yuan, Li Min

Journal of System Simulation

Abstract: In order to realize the intelligent management of road guide signs, a method of visualization of road guide sign panel based on the flexible combination of guiding information was proposed. As a consequence of analysis for structures of guide sign panel, the message on the guide sign panel was decomposed into guiding information, and then visualization function was proposed. The panel style was determined by the physical and logical topology of guiding intersection dynamically with the help of guide sign system database. Then the composition of geography information and guiding information was utilized in the process of visualization …


Application Research On Children's Indoor Fire Escape Education System Based On Virtual Reality Technology, Chunhua Hu, Xiaomei Chun, Shihong Chen Jul 2020

Application Research On Children's Indoor Fire Escape Education System Based On Virtual Reality Technology, Chunhua Hu, Xiaomei Chun, Shihong Chen

Journal of System Simulation

Abstract: It is significant to study children’s fire escape education in the virtual reality. The existing fire escape educations for children mostly adopt the ways of watching books and videos, lacking vitality and interactivity. According to the psychological characteristics of children, the models for virtual fire scene and the virtual character were built using the 3Ds Max. Based on Virtools platform, a game style of children's indoor fire escape education system was designed, with the integration of human-computer interaction, voice, smoke, and animation demo. Users experience the fire escape by auditory, visual and virtual behavior, with controlling virtual character to …


Study On Diffraction Effects Of Planar Underwater Shock Interaction With Rigid Quadrilateral Structure, Yuchun Li, Zhenru Gao, Bin Feng, Liu Qiang, Shen Wei Jul 2020

Study On Diffraction Effects Of Planar Underwater Shock Interaction With Rigid Quadrilateral Structure, Yuchun Li, Zhenru Gao, Bin Feng, Liu Qiang, Shen Wei

Journal of System Simulation

Abstract: Finite element simulation using LS-DYNA was performed to investigate the interaction of underwater planar shock wave and rigid quadrilateral structure. The characteristics of diffraction waves on both front and back surface of the rigid structure were analyzed and trace lines were gained. Vortex was formed near the corner of the structure diffracted by underwater shock with a void part of zero pressure existing in the local fluid region. Bulk cavitation near fluid-structure interface leads fluid pressure to drop to negative value, which is an important damage factor to merged structures. A derived pressure formulas of diffraction wave to rigid …


Power Modeling And Simulation For D/A Network In R-C Hybrid Sar Adc, Xingyuan Tong, Zhang Yang Jul 2020

Power Modeling And Simulation For D/A Network In R-C Hybrid Sar Adc, Xingyuan Tong, Zhang Yang

Journal of System Simulation

Abstract: D/A conversion network of SAR (SAR: Successive Approximation Register) ADC was discussed. The energy model of the capacitor array in R-C hybrid D/A network was established by using MATLAB. With the combination of resistor string’s static power and capacitor array’s switching power, the power model of the R-C hybrid network in SAR ADC was proposed based on a 65nm CMOS process. Furthermore, by considering matching requirement for the passive components, 12-bit R-C hybrid D/A networks with “5+7”, “6+6” and “7+5” type of structures were simulated and compared. The research can provide significant guidance for circuit design and optimization of …


Research On Double-Sided Linear Induction Motor Of Electromagnetic Catapult Of Carrier-Based Aircraft, Xijun Liu, Kunlun Zhang, Guoqing Liu Jul 2020

Research On Double-Sided Linear Induction Motor Of Electromagnetic Catapult Of Carrier-Based Aircraft, Xijun Liu, Kunlun Zhang, Guoqing Liu

Journal of System Simulation

Abstract: To solve the low efficiency of current steam catapults of carrier-based aircraft, the authors proposed the electromagnetic catapult of carrier-based aircraft using double-sided linear induction motor. The authors analyzed the technical requirements of the catapult of carrier-based aircraft through the kinetic equations, analyzed the drive source of the catapult - long primary double-sided linear induction motor - through the physical model and equivalent circuit, derived the relationship between required thrust and the design parameters of the electromagnetic catapult, and provided specific design parameters. Using computer simulation analysis, the authors analyzed the impact of secondary length, motor pole …


Impact Analysis On Distribution Prediction Of Stipa Species Under Climate Change, Xuqing Tang, Jianlin Li Jul 2020

Impact Analysis On Distribution Prediction Of Stipa Species Under Climate Change, Xuqing Tang, Jianlin Li

Journal of System Simulation

Abstract: Based on the actual climatic data from 1981 to 2000 in Northeast China, the predicted climatic data and the actual distribution data of Stipa species, 12 climatic factor indicators affecting Stipa species distribution were extracted combining with similar biological and ecological characteristics of Stipa. By introducing Gauss Competitive Exclusion Principle and the statistical analysis method, a competitive stochastic mathematical model of the distribution of Stipa was built, and the corresponding algorithm was given. The forecast figures were obtained for the optimal, medium and general adaptable distribution of the five Stipa species from 2041 to 2050 and from 2091 …


Online Product Quality Prediction For Multi-Phase Based On Local Model, Li Yuan, Yayun Yan, Xiaochu Tang Jul 2020

Online Product Quality Prediction For Multi-Phase Based On Local Model, Li Yuan, Yayun Yan, Xiaochu Tang

Journal of System Simulation

Abstract: For offline quality prediction accuracy for batch process, an online prediction method for multi-phase product quality was proposed based on the local model. According to the repetitive cycle of batch process, batch process could be divided into stable phase and transitional phase using the repeatability factor. The least squares support vector machine (LSSVM) model was established in stable phase using the time slice of same phase position, and the LSSVM model was established in transitional phase using optimal subset based on diffusion distance, which made the natural properties of current stable phase and transitional phase be similar to …


Energy Conservation And Emissions Reduction Policy Simulation About Energy-Consuming Enterprises, Yongbo Yang, Chen Ying, Yang Jing, Mingzhong Liu, Zhenchao Jiang, Zeng Rong Jul 2020

Energy Conservation And Emissions Reduction Policy Simulation About Energy-Consuming Enterprises, Yongbo Yang, Chen Ying, Yang Jing, Mingzhong Liu, Zhenchao Jiang, Zeng Rong

Journal of System Simulation

Abstract: Energy conservation and emissions reduction policy have made some achievements, at the same time there are still some problem such as too much administrative command, lack of market mechanism and the lack of price mechanism. The government is both energy conservation leader, supervisor also rule makers. In order to formulate energy conservation policy, they must have overall cognition on energy conservation and emissions reduction. The dynamic relationship between the government, enterprise and environment was analyzed setting up simulation model for key energy-consuming enterprises based on system dynamics. Through the simulation, the influence of different policies for energy conservation …


Effect Of Assembly Force On Gas Diffusion Layer For Proton Exchange Membrane Fuel Cell, Yibo Zhou, Jianjian Wang Jul 2020

Effect Of Assembly Force On Gas Diffusion Layer For Proton Exchange Membrane Fuel Cell, Yibo Zhou, Jianjian Wang

Journal of System Simulation

Abstract: A three-dimensional multi-flow channel proton exchange membrane fuel cell (PEMFC) model has been developed to investigate the deformation of gas diffusion layer (GDL) with different assembly force and different contact ratio of channel. The results indicate that the GDL under the land part changes significantly while the central region under the flow channel almost has no deformation with increasing assembly force. When the contact ratio of channel is not 100%, the deformation of GDL is not symmetrical due to the shear stress, and the thickness of GDL under the flow channel even exceeds its initial thickness, which produces the …


Overall-Wind-Speed Dynamic Sliding Mode Power Control For Direct-Driven Pmsg-Based Wind Energy Generation System, Aihua Wu, Buhui Zhao, Jingfeng Mao Jul 2020

Overall-Wind-Speed Dynamic Sliding Mode Power Control For Direct-Driven Pmsg-Based Wind Energy Generation System, Aihua Wu, Buhui Zhao, Jingfeng Mao

Journal of System Simulation

Abstract: A novel dynamic sliding mode control (DSMC) strategy for direct-driven PMSG system was proposed to improve wind energy generation efficiency in overall-wind-speed operating condition. Based on the multi-stage working characteristics, optimum torque control method was adopted to implement the MPPT task when wind speed was under the rating value, and power control method was adopted to implement the constant power generation task when wind speed was above the rating value. The controller was designed by the sliding mode reaching law method of power exponent function. Due to the switch function amplitude feedback, the switch gain was granted the …


Application Of Recursive Least Square Method In Identication Of Dehydrogenation Reator, Guoyou Li, Ningning Gao, Wenhua Xia Jul 2020

Application Of Recursive Least Square Method In Identication Of Dehydrogenation Reator, Guoyou Li, Ningning Gao, Wenhua Xia

Journal of System Simulation

Abstract: The current production methods of styrene at home and abroad are mainly dhydrogenation of ethylbenzene which accounts for more than 90% of styrene production capacity in the world. To save energy, it was needed to optimize the system and its premise was to know the mathematical model of ethylbenzene dehydrogenation reactor. Due to the complexity of the reactor internal structure, mechanism modeling was more difficult to establish objective and accurate mathematics models. To solve this problem, it was used recursive least squares to conduct parameter identification. On the basis of actual plant data, ethylbenzene dehydrogenation reactor mathematical model was …


Modeling Method Based On Reachable Set For Safety Path In Autonomous Vehicle Obstacle Avoidance, Cao Kai, Xiaoxiao Huang, Yu Yun, Liu Chun Jul 2020

Modeling Method Based On Reachable Set For Safety Path In Autonomous Vehicle Obstacle Avoidance, Cao Kai, Xiaoxiao Huang, Yu Yun, Liu Chun

Journal of System Simulation

Abstract: In view of problem in all possible uncertain behavior of vehicle unable existed by the traditional path planning algorithm, a modeling method was proposed which deemed a moving vehicle as a hybrid system switching dynamically between continuous and discrete mode, modeled an optimal trajectory for vehicle obstacle avoidance by using a single security target location, and built a safe state reachable set based on the trajectory beam of multiple security target locations. On this basis, the condition of the inevitable collision of vehicle was analyzed, and the optimal control problem with loose constraints for the vehicle obstacle avoidance was …


Mixed H2/H Optimal Pid Control For Superheated Steam Temperature System, Weiping Liang, Jiarong Wang Jul 2020

Mixed H2/H∞ Optimal Pid Control For Superheated Steam Temperature System, Weiping Liang, Jiarong Wang

Journal of System Simulation

Abstract: Aiming at the non-linear, large inertial, uncertain parameters and multi-disturbances of the main steam temperature object in power plants, a mixed H2/Hoptimal PID control scheme was designed. The multiplicative perturbed boundary of the H and the effective range of the PID controller parameters were given under the system being closed-loop stability. An improved gravitational search algorithm was proposed in order to obtain optimum performance indicators. The effectiveness of the algorithm was supported through testing on typical test functions, then the algorithm was applied to optimize the parameters of the main steam temperature system Mixed …


Research On Effect Of Harmonic Source Equivalent Model On Harmonic Power Flow, Zhenguo Shao, Wenbo Su, Zhaoxiang Li Jul 2020

Research On Effect Of Harmonic Source Equivalent Model On Harmonic Power Flow, Zhenguo Shao, Wenbo Su, Zhaoxiang Li

Journal of System Simulation

Abstract: The models and parameters of harmonic source are the main factors that affect the calculation accuracy of harmonic flow. Harmonic source was divided into linear load and non-linear load and then modelled separately. The algorithm flowcharts, coupling method, decouple method and linear method, were analyzed with power source model, current source model and current source-impedance model correspondingly. The frequency response of those models was compared with a simple example. It indicates that the model of linear load and its affect in harmonic frequency are the key factors influencing computational accuracy of harmonic power flow. Then an example of harmonic …


Color Face Image Recognition Based On Lbpt Method, Jihua Ye, Yahui Chen, Shimin Wang Jul 2020

Color Face Image Recognition Based On Lbpt Method, Jihua Ye, Yahui Chen, Shimin Wang

Journal of System Simulation

Abstract: Aiming to the shortcomings of exiting algorithm to obtain better color face image information for color facial image recognition, the LBPT algorithm was proposed to realize the high efficiency recognition of color face image. LBPT algorithm reflected the texture features of gray image through adaptively obtaining neighborhood radius, ascertaining the relationship between neighborhood radius and neighborhood pixel number, setting threshold. The RGB color model was used to separate the color face image into the R,G,B three component diagrams. The LBPT algorithm was used to obtain the feature of the component diagrams. In order to realize further recognition, the method …


Control Allocation Method For Split-Drag-Rudders With Asymmetrical Deflection, Xiaobo Qu, Weiguo Zhang, Jingping Shi Jul 2020

Control Allocation Method For Split-Drag-Rudders With Asymmetrical Deflection, Xiaobo Qu, Weiguo Zhang, Jingping Shi

Journal of System Simulation

Abstract: The split drag rudders (SDRs) were usually used for the yaw control of tailless flying wing aircraft with the symmetric deflection mode. This approach was simple and effective, but the upper and lower deflectors of the SDRs were constrained to deflect symmetrically, limiting the distribution and control mode of the deflectors, reducing the maximum available moment in pitch axis and roll axis, affecting the handling performance of the aircraft flying at low speed. A certain flying wing UAV was used as the study model. The CFD method was adopt to investigate the aerodynamic characteristic of SDRs operating in either …


Research On Credibility Of Function Validation To C2 System Of Land Force, Yaxin Tan, Yongchun Xia, Fan Rui, Haitao Zhi Jul 2020

Research On Credibility Of Function Validation To C2 System Of Land Force, Yaxin Tan, Yongchun Xia, Fan Rui, Haitao Zhi

Journal of System Simulation

Abstract: The function verification of C2 system of land force is a way to check its satisfaction level to real fighting in the system application. The verification is caught out after the force has received these equipment. In order to complete the verification, the environment with virtual force and real software was built by modeling and simulation method, so that the verification could be carried out under the condition which is similar to true combat. In this environment, the interaction between real human and virtual force by the C2 software could help to complete the verification. Focusing on the credibility …


Study Of Model And Simulation On Ceramic Tile Polishing Energy Consumption, Haidong Yang, Chengdun Guo, Li Hong, Guosheng Liu, Jiawen Wu Jul 2020

Study Of Model And Simulation On Ceramic Tile Polishing Energy Consumption, Haidong Yang, Chengdun Guo, Li Hong, Guosheng Liu, Jiawen Wu

Journal of System Simulation

Abstract: Currently, there are many defects in the production line of ceramic polishing, such as over polishing and high energy consumption, so it is an urgent mission to optimize the technical processes in order to cut down the energy consumption. Material removal equations and energy usage model were established based on the kinematic mechanism process and Preston equation. Simulation experiments were done by the above equations and model, so as to depict the evolution in both quality and power consumption. The impact of transmission speed of belt, lateral swing speed, disc rotation speed and other kinematic parameters on over polishing …


Respond Performance To Dynamic Heat Resource Of Organic Rankine Cycle For Waste Heat Recovery On Vehicle, Zhao Li, Huang Wei Jul 2020

Respond Performance To Dynamic Heat Resource Of Organic Rankine Cycle For Waste Heat Recovery On Vehicle, Zhao Li, Huang Wei

Journal of System Simulation

Abstract: Complex traffic leads to a dynamic behavior of exhaust gas of vehicle. Therefore, a real operating of Organic Rankine Cycle (ORC), which is used for heat recovery, deviates the design working condition at most of time with a low operating efficiency. To solve the problem, a dynamic model of ORC system verified by experiment result was built. The dynamic behavior of the heat resource, divided into 6 modes, was used as an input of external condition to the developed model. The impact results of the step mass flow rate and the temperature of heat resource to the stability of …


Computed Terahertz Wave Propagation In Marine Protective Coating, Wanli Tu, Shuncong Zhong, Zhou Qing, Ligang Yao Jul 2020

Computed Terahertz Wave Propagation In Marine Protective Coating, Wanli Tu, Shuncong Zhong, Zhou Qing, Ligang Yao

Journal of System Simulation

Abstract: The propagation of terahertz radiation in marine protective coatings was investigated based on Finite-difference time-domain method. The theoretical framework using terahertz waves for the detection of marine protective coatings was established; also, both intact and defected coating system were modelled and analyzed. The reflected radiation properties were recorded for quantitative characterisation of marine protective coating thickness. Furthermore, diagnostic analysis was done for the defects of the coating system, such as bubbling and oxidation of rust. The Finite-difference time-domain model provides some theoretical basis for nondestructive testing and evaluation of marine protective coating system by terahertz pulsed imaging technology …


Optimization Simulation For Job-Shop Scheduling For Reducing Manufacturing Energy Consumption, Xiaoxia Li, Xiaomao Huang, Jianxiao Liu, Liu Feng Jul 2020

Optimization Simulation For Job-Shop Scheduling For Reducing Manufacturing Energy Consumption, Xiaoxia Li, Xiaomao Huang, Jianxiao Liu, Liu Feng

Journal of System Simulation

Abstract: To reduce the energy consumption in the manufacturing process by optimizing job-shop scheduling, the process of the machines' energy consumption was divided into different stages. The energy consumption of each stage was analyzed and modeled. The job-shop scheduling problem model for manufacturing energy consumption was developed. On the basis of the developed problem model, minimizing manufacturing energy consumption was used as the optimization goal and a simulated annealing algorithm was adopted to optimize the job-shop scheduling. A job scheduling scheme was generated randomly according to the coding rule. The job scheduling scheme generated randomly was used as the initial …


Simulation Contrast Analysis On Rigid And Flexible Movements Of Multi-Fins Coordinated Propulsion Mode, Xie Ou, Boquan Li, Yan Qin Jul 2020

Simulation Contrast Analysis On Rigid And Flexible Movements Of Multi-Fins Coordinated Propulsion Mode, Xie Ou, Boquan Li, Yan Qin

Journal of System Simulation

Abstract: A novel type of bionic underwater hybrid propulsion mode was proposed. By the means of the coordination control of the multi-fins, a propulsion mode combines the undulation propulsion of fish and the jet propulsion of jellyfish was developed, and was capable of achieving a serial of motions: undulating, jetting, turning, submerging, emerging and braking. The rigid and flexible water stabilizer kinematics model was established and the numerical simulation was performed for undulation and jet propulsion mode of the rigid and flexible water stabilizer by using a CFD method. The simulation results show that the dynamic characteristics and swimming performance …