交流电机专利

正[专利名称]:Motor structure applicable to severe environment(适用于苛刻环境的电动机结构)[专利号]:TW201630313A[申请人]:FUKUTA ELECTRICMACHINERY CO LTD[TW][发明人]:ZHANG JIN-FENG[TW][申请日期]:2015-02-04[公开日期]:2016-08-16[国家/地区]:台湾[摘要]:A motor structure applicable to severe environment,which includes a compulsive cooling unit in communication with a housing,under normal temperature and pressure,the compulsive cooling unit can prevent     

感应电机专利

正[专利名称]:SYNCHRONOUS INDUCTION MOTOR(同步感应电机)[专利号]:EP3057208A1[发明人]:HOSHNO,Yoshitada Kyoto,EGASHIRA,Junya[申请日期]:2016-1-27[公开日期]:2016-8-17[国别]:日本[摘要]:A rotary portion 2 of a synchronous induction motor 1 includes an annular rotor core31,a secondary conductor 32 and a plurality of permanent magnets 33.The secondary conductor 32 includes a plurality of conductor bars 60 which are provided in secondary conductor slots 311 in the rotor core 31,and a pair of end     

超导专利

正[专利名称]:Current Curve For A Superconducting Electrical Machine(超导电机的电流曲线)[专利号]:EP2801151B1[发明人]:Kowalski,Thomas[申请日期]:2012-12-24[公开日期]:2016-4-20[国家]:德国[摘要]:The invention relates to a motor which is provided with     

推进器专利

正[专利名称]:SHIP PROPULSION METHOD AND SHIP PROPULSION DEVICE(舰船推进方法及舰船推进装置)[专利号]:CA2941037 A1[申请人]:NIIGATA POWER SYSTEMS CO.,LTD.,JP[发明人]:SHIRAISHI,KOICHI;HATAMOTO,TAKURO;KODERA,MASANORI[申请日期]:2015-09-29[公开日期]:2017-03-29[国别]:日本[摘要]:A ship propulsion device(1)is adapted to rotate a propeller(20)to propel a ship(2).In a case where the rotating speed     

舰船用新型飞轮储能动发一体机综合物理场分析(英文)

A novel flywheel energy storage(FES) motor/generator(M/G) was proposed for marine systems.The purpose was to improve the power quality of a marine power system(MPS) and strengthen the energy recycle.Two structures including the magnetic or non-magnetic inner-rotor were contrasted in the magnetostatic field by using finite element analysis(FEA).By optimally designing the size parameters,the average speed of FEA results of was 17 200 r/m,and the current was controlled between 62 and 68 A in the transient field.The electrical machine electromagnetism design was further optimized by the FEA in the temperature field,to find the local overheating point under the normal operation condition and provide guidance for the cooling system.Finally,it can be concluded from the comprehensive physical field analysis that the novel redundant structure M/G can improve the efficiency of the M/G and maintain the stability of the MPS.     

电池专利

正[专利名称]:Use of High-temperature Batteries for Ships(船用高温电池的运用)[专利号]:US 2016/0218405 A1[申请人]:SIEMENS AKTIENGESELLSCHAFT(DE)[发明人]:Michael KUEHNE;Michael WYCISK[申请日期]:2014-09-19[公开日期]:2016-06-28[国别]:德国[摘要]A method and arrangement for at least partially supplying an electrical system of a ship having at least one     

A new marine propulsion system

A new marine propulsion system is proposed . A small liquid sodium cooled reactor acts as prime mover; alkali-metal thermal-to-electric conversion (AMTEC) cells are employed to convert the heat energy to electricity; superconducting magneto-hydrodynamic thruster combined with spray-water thruster works as propulsion. The configuration and characteristics of this system are described. Such a nuclear-powered propulsion system is not only free of noise, but also has high reliability and efficiency. It would be a preferable propulsion system for ships in the future。     

永磁电机专利

正[专利名称]:Electric Motor with Permanent Magnet Excitation and Rotor Cooling(带永磁励磁和转子冷却机构的电动机)[专利号]:US7816824B2[发明人]:Andreas Jockel[申请日期]:2006-06-08[公开日期]:2010-10-19[国别]:德国[摘要]:The invention relates to an electric motor(1)with permanent magnet excitation,comprising a stator(2),a rotor(8),comprising a hollow shaft(13)on which the permanent magnets(9)     

开关专利

正[专利名称]:METHOD AND APPARATUS FOR SMART CIRCUIT BREAKER(适用于智能断路器的方法及设备)[专利号]:US2017140602A1[申请人]:POWER MONITORS INC[US][发明人]:CURT WALTER[US][申请日期]:2017-01-30[公开日期]:2017-05-18[国别]:美国[摘要]:A smart circuit breaker is provided.An electronic device can be     

Review of magnetorheological （MR） fluids and its applications in vibration control

1 Introduction1 Magnetorheological is a branch of Rheology that deals with the flow and deformation of the materials under an applied magnetic field. The discovery of MR fluids is credited to Jacob Rabinow[2,3] in 1949. Magnetorheological (MR) fluids are …     

船用柴油机系统的完整建模（英文）

This paper presents a simulator model of a marine diesel engine based on physical, semi-physical, mathematical and thermodynamic equations, which allows fast predictive simulations. The whole engine system is divided into several functional blocks: cooling, lubrication, air, injection, combustion and emissions. The sub-models and dynamic characteristics of individual blocks are established according to engine working principles equations and experimental data collected from a marine diesel engine test bench for SIMB Company under the reference 6M26SRP1. The overall engine system dynamics is expressed as a set of simultaneous algebraic and differential equations using sub-blocks and S-Functions of Matlab/Simulink. The simulation of this model, implemented on Matlab/Simulink has been validated and can be used to obtain engine performance, pressure, temperature, efficiency, heat release, crank angle, fuel rate, emissions at different sub-blocks. The simulator will be used, in future work, to study the engine performance in faulty conditions, and can be used to assist marine engineers in fault diagnosis and estimation(FDI) as well as designers to predict the behavior of the cooling system, lubrication system, injection system, combustion, emissions, in order to optimize the dimensions of different components. This program is a platform for fault simulator, to investigate the impact on sub-blocks engine’s output of changing values for faults parameters such as: faulty fuel injector, leaky cylinder, worn fuel pump, broken piston rings, a dirty turbocharger, dirty air filter, dirty air cooler, air leakage, water leakage, oil leakage and contamination, fouling of heat exchanger, pumps wear, failure of injectors(and many others).     

Numerical study on flow-induced noise for a steam stop-valve using large eddy simulation

The noise induced by the fluctuant saturated steam flow under 250 °C in a stop-valve was numerically studied.The simulation was carried out using computational fluid dynamics（CFD） and ACTRAN.The acoustic field was investigated with Lighthill＇s acoustic analogy based on the properties of the flow field obtained using a large-eddy simulation that employs the LES-WALE dynamic model as the sub-grid-scale model.Firstly,the validation of mesh was well conducted,illustrating that two million elements were sufficient in this situation.Secondly,the treatment of the steam was deliberated,and conclusions indicate that when predicting the flow-induced noise of the stop-valve,the steam can be treated as incompressible gas at a low inlet velocity.Thirdly,the flow-induced noises under different inlet velocities were compared.The findings reveal it has remarkable influence on the flow-induced noises.Lastly,whether or not the heat preservation of the wall has influence on the noise was taken into account.The results show that heat preservation of the wall had little influence.     

国内外相关文献题录

开发适用于船舶和核工业的水液压传动系统= The development of a water hydraulicactuation system for the marine and nuclear industry [汇,英]/Dobson A, Roskilly AP // The Institute of Marine Engineers .-2000, 112(part 2) .-53 - 59 Micromist:一种良好的灭火剂替代物=Micromist: a benign alternative extinguishant [汇,英]/O'Connell M // The Institute of Marine     

The asymptotic field of a dynamically growing crack in a viscoelastic materia

A mechanical model of a fracturing viscoelastic material was developed to investigate viscous effects in a dynamically growing crack-tip field. It was shown that in the stable creep-growing phase,elastic deformation and viscous deformation are equally dominant in the near-tip field,and stress and strain have the same singularity,namely,(σ,ε ) ∝ r?1 /( n?1) . The asymptotic solution of separating variables of stress,stain and displacement in the crack-tip field was obtained by asymptotic analysis,and the resulting numerical value of stress and strain in the crack-tip field was obtained by the shooting method and the boundary condition of a mode I crack. Through numerical calculation,it was shown that the near-tip fields are mainly governed by the creep exponent n and Mach number M . When n →∞,the asymptotic solution of a viscoelastic material can be degenerated into that of Freund's elastic-ideally plastic material by analyzing basic equations.     

Coordinate control of initiative mating device for autonomous underwater vehicle based on TDES

A novel initiative mating device, which has four 2-degree manipulators around the mating skirt, is proposed to mate between a skirt of AUV （autonomons underwater vehicle） and a disabled submarine. The primary function of the device is to keep exact mating between skirt and disabled submarine in a badly sub sea environment. According to the characteristic of rescue, an automaton model is brought forward to describe the mating proceed between AUV and manipulators. The coordinated control is implemented by the TDES （time discrete event system）. After taking into account the time problem, it is a useful method to control mating by sinmlation testing. The result shows that it reduces about 70 seconds after using intelligent co-ordinate control based on TDES through the whole mating procedure.     

Dynamics of five-bar COBOT using differential mechanism

COBOT is a new kind of collaborative robot, which can work with people in a shared space. In this paper a new kind of CVT using differential mechanism is introduced, which is major parts of five-bar COBOT and based the feature of nonhlonnmie constraint. The dynamic model of differential mechanism and five-bar architecture COBOT is founded. There are two kinds of coupled mode of two CVT:serial and parallel. In this paper, we present the dynamic model of serial and parallel COBOT take five-bar COBOT as research object. From the dynamic analysis foregoing, both serial and parallel COBOT model are have the feature of nonholonomic constraint. The ending track and moving state are controlled by the force of control motor and operator. The control motor can not control the movement and ending track of COBOT witbout the cooperation of cperator.     

应用零航速减摇鳍的海洋机器人近水面时的横摇减摇控制(英文)

A zero-speed fin stabilizer system was developed for rolling control of a marine robot.As a robot steering device near the sea surface with low speed,it will have rolling motion due to disturbance from waves.Based on the working principle of a zero-speed fin stabilizer and a marine robot’s dynamic properties,a roll damping controller was designed with a master-slave structure.It was composed of a sliding mode controller and an output tracking controller that calculates the desired righting moment and drives the zero-speed fin stabilizer.The methods of input-output linearization and model reference were used to realize the tracking control.Simulations were presented to demonstrate the validity of the control law proposed.     

感应电机专利

正[专利名称]:Induction Motor Control(感应电机的控制)[专利号]:WO 2016/044426 A1[发明人]:FLEMING,David James;GRUNBERG Michael;NAGORNY Aleksandr,[申请号]:PCT/US2015/050429[申请日期]:2015-9-16[公开日期]:2016-3-24     

Design and research on a variable ballast system for deep-sea manned submersibles

Variable ballast systems are necessary for manned submersibles to adjust their buoyancy. In this paper, the design of a variable ballast system for a manned submersible is described. The variable ballast system uses a super high pressure hydraulic seawater system. A super high pressure seawater pump and a deep-sea brushless DC motor are used to pump seawater into or from the variable ballast tank, increasing or decreasing the weight of the manned submersible. A magnetostrictive linear displacement transducer can detect the seawater level in the variable ballast tank. Some seawater valves are used to control pumping direction and control on-off states. The design and testing procedure for the valves is described. Finally, the future development of variable ballast systems and seawater hydraulic systems is projected.     

Design and research on a variable ballast system for deep-sea manned submersibles

Variable ballast systems are necessary for manned submersibles to adjust their buoyancy.In this paper,the design of a variable ballast system for a manned submersible is described.The variable ballast system uses a super high pressure hydraulic seawater system.A super high pressure seawater pump and a deep-sea brushless DC motor are used to pump seawater into or from the variable ballast tank,increasing or decreasing the weight of the manned submersible.A magnetostrictive linear displacement transducer can detect the seawater level in the variable ballast tank.Some seawater valves are used to control pumping direction and control on-off states.The design and testing procedure for the valves is described.Finally,the future development of variable ballast systems and seawater hydraulic systems is projected.