high efficiency motors with power-dense permanent magnet rotor materials Arnold manufactures Recoma® 35E, the world’s most power-dense samarium cobalt material available on the market today. This innovative magnetic material is critical to boosting performance in the aerospace, automotive and motorsport industries, providing superior …Choosing the proper engine that fits the desired application is a crucial design factor in robotics. Accordingly, this paper compares different types of engines for other Industrial robots (IR) and proposes to put practical criteria based on the mechanical design and its application. It starts from describing the IR choice to explaining the …Permanent magnets generate a rotor magnetic field that creates a sinusoidal rate of change of flux based on the rotor angle. For the axes convention, when you set the Rotor angle definition parameter to Angle between the a-phase magnetic axis and the d-axis, the a -phase and permanent magnet fluxes align when the rotor mechanical angle, θr, is ...Yu S B, Tang R. Electromagnetic and mechanical characterizations of noise and vibration in permanent magnet synchronous machines. IEEE Trans Magn, 2006, 42: 1335–1338. Article Google Scholar Zuo S, Lin F, Wu X. Noise analysis, calculation, and reduction of external rotor permanent-magnet synchronous motor.Brushless DC electric motor. The motor from a 3.5 in floppy disk drive. The coils, arranged radially, are made from copper wire coated with blue insulation. The rotor (upper right) has been removed and turned upside-down. The grey ring inside its cup is a permanent magnet. This particular motor is an outrunner, with the stator inside the rotor. The permanent magnet (PM) brushed DC-motor only has one winding: that is of the armature on rotor, whereas the field winding (on the stator) is replaced by a permanent magnet. This is the class of brushed DC-motor that we study in this chapter. PM brushed DC-motors can be found in a wide range of applications.Permanent-magnet fields are, by definition, constant and not subject to failure, except in extreme cases of magnet abuse and demagnetization by overheating. Although PM motors are more expensive than induction motors, they offer a longer operating life, improved efficiency, better thermal resistance, reduced size and weight.Jul 30, 2022 · In this paper, an improved rotor position observer with sliding mode control strategy of permanent magnet synchronous motor was studied. A MPF was designed instead of LPF to reduce the chattering in the traditional SMO back EMF and eliminate the system phase delay. In order to address these issues, a 2-DOF surface permanent magnet spherical motor with a new mechanical design for the movement of the rotor with a large tilt angle of ±45° was designed, simulated, produced and tested in this paper. The motor consisted of a 4-pole permanent magnet rotor and a 3-block stator with 18 coils.Range of Surface-Mounted Permanent-Magnet. ... 413. [6] M. Hippner and R. G. Harley, 1992, “Looking for. an optimal rotor for high speed permanent magnet. synchronous machine”, Conference Rec ...Non−Magnetic Rotor Core Rotor Magnets Rotor Pole Pieces Figure 2: Axial View of a Flux Concentrating Motor The geometry of one type of internal magnet motor is shown …A permanent magnet is a material that can provide magnetic flux when magnetized with an applied magnetic field and its magnetism capability is characterized by two key parameters: remanence and coercitivity. In general, the intrinsic coercitivity of a permanent magnet (Hcj ) is greater than 300kOe (in the CGS unit) or 24kA / m (in the SI unit). Several new topologies without permanent magnets in the rotor have been published recently [3]. These topologies feature either a low mechanical complexity [4], a wide air gap to rotor radius ratio [5], further called gap factor G, or a good torque per stator permanent magnet mass ratio [6]. In theory, reluctance rotors have advantages for very ...The actual power capacity of permanent magnet synchronous machine for electric vehicles is usually limited by rotor temperature, ... Usually, measuring the …Among them, the NS type rotor has a structure in which the permanent magnetization direction of the two-sided rotor is opposite. One rotor permanent magnet magnetic flux flow to the opposite rotor. The advantage is that there is no magnetic flux flowing through the Stator back-yoke, making the design easier. Furthermore, by …Increasing industrial development puts forward high requirements for the performances of stator permanent magnet (PM) machines, such as torque density and efficiency. The paper proposes a new dual stator PM machine based on field modulation theory (DSPMM), which employs the intermediate rotor participating in the …This paper presents an analysis of torque pulsation with respect to the rotor rib shape in an interior permanent magnet motors (IPMs) and the type of magnet materials. The effects of three parameters, the angle and length of the flux barrier and the residual flux density of the PM, are studied using the response surface methodology. …Oct 6, 2023 · The rotor of the HSPMSM adopts a solid cylindrical permanent magnet rotor with the parallel magnetization of two poles. The excitation magnetic field of the permanent magnet is a standard sinusoidal magnetic field, which can provide a large magnetic potential, which is convenient for the design of large air gaps and is conducive to ventilation and heat dissipation. Summary. PM (Permanent Magnet) Type: uses permanent magnets, moderate torque, low to mid-speed. VR (Variable Reluctance) Type: toothed rotor/stator, low torque, mid to high speed. Hybrid Type: combines permanent magnets and teeth, good combination of torque and speed.A commercial traction motor (Prius 2010), designed with Nd-Fe-B magnets for maximum power 60 kW and maximum speed 13,500 rpm, is used as the baseline for comparing the HRMM design. The HRMM design shows comparable performance with the commercial design for the given speed range with ~ 50% reduction in critical rare earth …External rotors of “outrunner” type. Rotors with additional bandage (Polyglas, Kevlar, carbon) Rotors with protecting sleeve. Contact us. Jan Kratochvil ml. +420 607 570 823 …Magnet Rotors. Magnetic rotor, or permanent magnet rotor is the non stationary part of a motor. The rotor is the moving part in an electric motor, generator and more. Magnetic rotors are designed with multiple poles. …All motors run on the principle that interacting magnetic fields in the rotor (the rotating component) and the stator (the stationary component) generate motion. …Permanent magnet motor. Schematic of a permanent magnet motor. A permanent magnet motor is a type of electric motor that uses permanent magnets for the field excitation and a wound armature. The permanent magnets can either be stationary or rotating; interior or exterior to the armature for a radial flux machine or layered with the armature for ... Choosing the proper engine that fits the desired application is a crucial design factor in robotics. Accordingly, this paper compares different types of engines for other Industrial robots (IR) and proposes to put practical criteria based on the mechanical design and its application. It starts from describing the IR choice to explaining the …Metrics. Permanent magnets constructed from metal ions and organic linkers using molecular design principles could bring transformative advances in areas such as energy conversion, transportation ...Synchronous motor. Miniature synchronous motor used in analog clocks. The rotor is made of permanent magnet. Small synchronous motor with integral stepdown gear from a microwave oven. A synchronous electric motor is an AC electric motor in which, at steady state, [1] the rotation of the shaft is synchronized with the frequency of the supply ...A new technique for high performance and robust speed control of permanent magnet synchronous motor (PMSM) using a mixed non-linear H∞ and Sliding Mode Control (SMC) is applied.Summary. PM (Permanent Magnet) Type: uses permanent magnets, moderate torque, low to mid-speed. VR (Variable Reluctance) Type: toothed rotor/stator, low torque, mid to high speed. Hybrid Type: combines permanent magnets and teeth, good combination of torque and speed.A high-speed (HS) permanent magnet (PM) synchronous motor (HSPMSM) with a carbon fiber-reinforced plastic (CFRP) protective sleeve in the surface-mounted rotor was explored in this study.This paper proposes a new structure of the dual-rotor hybrid-excited axial-flux permanent magnet vernier machine (DR-HEAFPMVM) with the modular stator and the consequent-pole PM (CPM) rotor for low-speed, high torque density applications such as in-wheel electric vehicles. The tooth-wound non-overlapping armature windings and direct …Jun 9, 2022 · To solve the problem of tension stress caused by centrifugal force and caused by high-speed operation of permanent magnet (PM) rotor, a FeCo-based PM rotor structure model is proposed. Based on the thick-walled cylinder theory, the uniform analytical calculation formulas of strain field, displacement field, and stress field of high-speed permanent magnet rotor are derived, and the stresses of ... A magneto-structural combined dimensional and topology optimization approach for interior permanent magnet synchronous machine (IPMSM) rotor design is proposed using the solid isotropic material with penalization (SIMP) density-based topology optimization method. This method optimizes the location and dimensions of the …To enable a successful transition, the availability of resources must be ensured. In particular, rare earth materials used in permanent magnets of permanent magnet synchronous machines (PMSM) are already considered as a critical resource. Therefore, high performance magnets of existing PMSM rotors must be recovered and …The equivalent magnetic circuit (EMC) is employed both to design the mechanical parameters of the rotor while considering nonlinear magnetic saturation effect and to analyze the magnetic characteristics of the air-gap of the motor. This paper considers the design and performance evaluation of interior permanent magnet …1 Introduction. Nowadays, high-speed surface-mounted permanent magnet synchronous machines (SPMSMs) are becoming more and more common due to their simple structure, high-power density and high efficiency [1-3].The rare-earth permanent magnets (PMs) are widely applied in the high-speed SPMSMs owing to their high …Summary. PM (Permanent Magnet) Type: uses permanent magnets, moderate torque, low to mid-speed. VR (Variable Reluctance) Type: toothed rotor/stator, low torque, mid to high speed. Hybrid Type: combines permanent magnets and teeth, good combination of torque and speed.Non−Magnetic Rotor Core Rotor Magnets Rotor Pole Pieces Figure 2: Axial View of a Flux Concentrating Motor The geometry of one type of internal magnet motor is shown …To replace permanent magnets on an electric bike rotor, you’ll need a few essential tools: a screwdriver, pliers, and possibly a heat gun. Additionally, gather the …To solve the problem of tension stress caused by centrifugal force and caused by high-speed operation of permanent magnet (PM) rotor, a FeCo-based PM rotor structure model is proposed. Based on …Machines incorporating high-speed electrical machines (HSEM) are becoming increasingly common place in applications including air handling, energy storage and medical devices. They are of increasing interest within the automotive field for air handling applications. HSEM’s use surface-mounted permanent magnet (PM) rotors, manufactured from rare …Range of Surface-Mounted Permanent-Magnet. ... 413. [6] M. Hippner and R. G. Harley, 1992, “Looking for. an optimal rotor for high speed permanent magnet. synchronous machine”, Conference Rec ...Structure Review of Inner Permanent Magnet Synchronous machines (PMSM) Radial magnetization pattern can used applied to the permanent magnet motors, motors are in different size and shapes for the different applications. In this section different kind of PM motors will be reviewed. Field Excitation (FE) Permanent Magnet (PM) …For high-speed permanent magnet synchronous motors (HSPMSM), the rotor eddy current loss is generated by the time and the space harmonics, which results in the rotor temperature rise. This paper deals with the design and analysis of a 100kW, 20000r/min HSPMSM with novel composite rotor. The novel composite rotor includes a shaft, …The equivalent magnetic circuit (EMC) is employed both to design the mechanical parameters of the rotor while considering nonlinear magnetic saturation effect and to analyze the magnetic characteristics of the air-gap of the motor. This paper considers the design and performance evaluation of interior permanent magnet …This paper compares two flux-switching machines, namely, one stator permanent magnet flux-switching machine and one rotor permanent magnet flux …Mar 29, 2018 · For the high-frequency permanent magnet electrical machine, a reasonable mechanical aspect design is crucial to meet its stability and reliability. This study focuses on the accurate modelling and analysis of the natural frequencies and modes of the rotor assembly for a designed and manufactured 100 kW 32,000 r/min motor. An ironless rotor structure wastes permanent magnet material, since the magnetic circuit closes through air in the rotor side. Therefore, a thin steel rim, to which the magnets are attached, is employed (Fig. 9.1) The rim can be either a laminated structure, in which case the eddy current losses of the rotor remainFeb 9, 2018 · Electric machines with permanent magnet rotors are becoming increasingly popular due to the high power density that they offer relative to other configurations. Where the speed of rotation is high, the magnets are typically mounted on the surface of the rotor and retained by an outer sleeve. In the literature, a variety of analytical models have been proposed to aid the mechanical design ... Rotor position information is necessary for the control of a permanent magnet synchronous motor (PMSM) and position sensorless control is the trend for its low cost, high reliability and space-saving.The permanent magnet (PM) brushed DC-motor only has one winding: that is of the armature on rotor, whereas the field winding (on the stator) is replaced by a permanent magnet. This is the class of brushed DC-motor that we study in this chapter. PM brushed DC-motors can be found in a wide range of applications.Permanent Magnet (PM) Brushless Direct Current (BLDC) actuators/motors have many advantages over conventional machines, including high efficiency, easy controllability over a wide range of operating speeds, etc. There are many prototypes for such motors; some of them have a very complicated construction, and this ensures their …2.2 External rotor permanent magnet motor rotor air gap magnetic field When the motor is running at no load, the air gap magnetic field is provided by the permanent magnet alone. The generated magnetic field rotates together with the rotor and the rotational speed is synchronous speed.rotor. For the rotor, the back iron δ BI and the magnet thicknesses δ PM have to be determined, which will also determine the inner rotor radius. In order to achieve high torque, the rotor should be chosen narrow (leading to a large radius of the magnetic gap, which is the lever arm of the motor). However, the permanent magnets have to provide aArnold produces high performance permanent magnet motor components and sub-assemblies for aerospace and defense, industrial, automotive, and motorsport applications, such as: KERS — Kinetic Energy Recovery System, which includes a composite sleeved RECOMA® SmCo magnet rotor for a 50,000+ RPM, 100KW+ system A magneto-structural combined dimensional and topology optimization approach for interior permanent magnet synchronous machine (IPMSM) rotor design is proposed using the solid isotropic material with penalization (SIMP) density-based topology optimization method. This method optimizes the location and dimensions of the …The prototype machine is an axial-flux permanent-magnet machine with a two-rotor–one-stator configuration. The nominal power of the machine is 300 W and the nominal rotational speed is 500 rpm. The magnets are neodymium iron boron magnets. Twelve magnets are mounted on the rotor surface and 12 magnets buried on the rotor (Fig. 12a). A Permanent Magnet DC motor (PMDC motor) is a type of DC motor that uses a permanent magnet to create the magnetic field required for the op...Apr 8, 2022 · This paper proposes two structures of dual-stator permanent-magnet vernier machines (VMs) for high-torque low-speed applications. The proposed structures consist of dual-sided rotor which is sandwiched by inner and outer stators. These topologies include 22 and 46 consequent-pole magnets in the rotor and 24 and 48 stator slots for Design A and Design B, respectively. Design A is an improved ... Electromagnetic interaction between the rotor permanent magnet and the stator slots is quite large. (1000 N simulated value for this motor). The air-gap needs to be as small as 1 mm. Fig. 4a shows the single disc of rotor with 9° skewed permanent magnets. The machine rotors were constructed by using mild-steel.addition to the magnet torque, thus improving the efficiency. In addition, the IPMSMs provide more rotor robustness as magnets are embedded in the rotor laminations; hence, no additional retention sleeving is required. Various IPMSM technologies have been studied in the literature. In [3], the V-shape, the U-shape, the spoke-type and theUnderstanding permanent magnet motors. A permanent magnet (PM) motor is an ac motor that uses magnets imbedded into or …Permanent Magnet Motors - External Rotor. The W series external-rotor permanent magnet motor combines the high strength alloy material with the patented one-piece fan …Feb 9, 2018 · Electric machines with permanent magnet rotors are becoming increasingly popular due to the high power density that they offer relative to other configurations. Where the speed of rotation is high, the magnets are typically mounted on the surface of the rotor and retained by an outer sleeve. In the literature, a variety of analytical models have been proposed to aid the mechanical design ... Magnetization process for PM rotors. The Permanent Magnet (PM) motor is a critical part in many electric car powertrain designs, which is undergoing rigorous improvement and changes. PM motors offer compact design and higher system efficiency among other advantages. The race for the electric cars has begun in the automotive industry and ... In order to address these issues, a 2-DOF surface permanent magnet spherical motor with a new mechanical design for the movement of the rotor with a large tilt angle of ±45° was designed, simulated, produced and tested in this paper. The motor consisted of a 4-pole permanent magnet rotor and a 3-block stator with 18 coils.The accurate calculation and reduction of electromagnetic force waves are important prerequisite for the evaluation and optimization of electromagnetic vibration. In this paper, an accurate calculation method of air gap permeance is proposed, the air gap flux density and the resulting electromagnetic force waves of 6p36s surface-mounted …reluctance, thus creating a magnetic pull to rotate the rotor. PM motors are driven by the interaction of the magnetic field generated by the permanent magnets and the rotating magnetic field generated by the stator winding. The characteristics of these high-speed motors are shown in Table1[61]. As can be seen from Table1, the high-speed …Nov 11, 2021 · According to the location of permanent magnet on the rotor, the permanent magnet synchronous motor rotor mainly has two different structures: surface-mounted and buried. Due to the strength limitation of silicon steel sheets, the application of buried rotor in the high-speed field is relatively smaller than surface-mounted rotor. 2.1 Electrical Characteristics. The equivalent circuit of a PMDC motor is shown in Fig. 1. The supply voltage and the current are given. The circuit consists of an induced voltage (Vi) in series with an armature resistor (Rarm) and inductance (Larm). The rotation of the ux generates the induced voltage. Mar 20, 2021 · Reluctance is a function of rotor position in a variable reluctance motor. Sequential switching (Figure below) of the stator phases moves the rotor from one position to the next. The mangetic flux seeks the path of least reluctance, the magnetic analog of electric resistance. This is an over simplified rotor and waveforms to illustrate operation. May 19, 2021 · Metrics. Permanent magnets constructed from metal ions and organic linkers using molecular design principles could bring transformative advances in areas such as energy conversion, transportation ... 1 INTRODUCTION. Due to the outstanding advantages of small size, high power density, low noise and high transmission efficiency, high-speed machine has been widely concerned [].Currently, there are mainly three types of high-speed machines: induction machine, switched reluctance machine and permanent magnet (PM) machine …Arnold produces high performance permanent magnet motor components and sub-assemblies for aerospace and defense, industrial, automotive, and motorsport applications, such as: KERS — Kinetic Energy Recovery System, which includes a composite sleeved RECOMA® SmCo magnet rotor for a 50,000+ RPM, 100KW+ system Feb 9, 2018 · Electric machines with permanent magnet rotors are becoming increasingly popular due to the high power density that they offer relative to other configurations. Where the speed of rotation is high, the magnets are typically mounted on the surface of the rotor and retained by an outer sleeve. In the literature, a variety of analytical models have been proposed to aid the mechanical design ... In this paper, an optimal design procedure which includes multi-physics analysis to design the multi-phase external rotor PMa-SynRMs is presented. In specific, a five-phase external rotor PMa-SynRM with neodymium based magnets has been proposed as a solution to produce higher power density compared to the conventional internal rotor PMa-SynRMs ...The eccentricity of the rotor influences the gap permeance, the operating point of the rotor magnets, the gap magnetic flux density distribution, and therefore the electromagnetic force and its spectral distribution. In this paper, the NVH response for dynamic and static eccentricities based on the radial magnetic force harmonics is …When the rotor magnets are placed inside the rotor iron in PMSM, the machine is called interior permanent magnet (IPM) . In this case, the magnetic reluctance is not uniform as it was for SM-PMSM. So, the self-inductance value of the stator will depend on the rotor position and, consequently, there will be nonzero reluctance torque in addition to the …How can a flux-absorbing structure improve the performance of a surface-mounted permanent magnet motor? This paper presents a comprehensive study of the electromagnetic and thermal characteristics of such a motor, using finite element analysis and experimental validation. The results show that the proposed structure can enhance …Nov 12, 2020 · A double-sided permanent magnet rotor with a single stator [2, 3] can offset the axial attraction and increase the output power at the cost of an increased weight. The double-sided permanent magnet rotor design can also reduce bearing wear and noise problem compared with a single-sided structure, which thus increases the generator reliability. A permanent magnet is a material that can provide magnetic flux when magnetized with an applied magnetic field and its magnetism capability is characterized by two key parameters: remanence and coercitivity. In general, the intrinsic coercitivity of a permanent magnet (Hcj ) is greater than 300kOe (in the CGS unit) or 24kA / m (in the SI unit). The rated power and speed of the permanent magnet grinding electric spindle are 7.5Kw and 950r/min, respectively.The main parameters of the PMGES are as follows, the rotor mass is m = 5.66 kg; the rotor radius is R = 0.072 mm; the axial length of the air gap is L = 0.178 mm, nominal air gap length is δ 0 = 3 × 10 −3 m, air permeability …To solve the problem of tension stress caused by centrifugal force and caused by high-speed operation of permanent magnet (PM) rotor, a FeCo-based PM rotor structure model is proposed. Based on …Structure Review of Inner Permanent Magnet Synchronous machines (PMSM) Radial magnetization pattern can used applied to the permanent magnet motors, motors are in different size and shapes for the different applications. In this section different kind of PM motors will be reviewed. Field Excitation (FE) Permanent Magnet (PM) …The nite element results show that the modular rotor permanent magnet ux switching machine has greater torque than salient rotor FEFSM, HEFSM, and PMFSM at the rated load with signicantly less weight than the others. Keywords Back EMF · Electromagnetic torque · Field Excitation · Hybrid Excitation · Modular rotor PMFSM · Permanent magnet Electric machines with permanent magnet rotors are becoming increasingly popular due to the high power density that they offer relative to other configurations. Where the speed of rotation is high, the magnets are typically mounted on the surface of the rotor and retained by an outer sleeve. In the literature, a variety of analytical models have …Sep 17, 2020 · Differently from the surface-mounted permanent magnet (PM) synchronous motors, there is an asymmetry of the reluctance between the d-axis and the q-axis, in which saliency can be used to produce reluctance torque in addition to the magnet torque, thus improving the efficiency. In addition, the IPMSMs provide more rotor robustness as magnets are ...
where B m is the maximum air gap flux density (0.4–0.9 T), B r,m is the remanence flux density of the magnets (1.2 T) at the operating temperatures of the outer rotor PMSG, is the relative permeability of the …. 5753 vintage kmart
Brushless DC electric motor. The motor from a 3.5 in floppy disk drive. The coils, arranged radially, are made from copper wire coated with blue insulation. The rotor (upper right) has been removed and turned upside-down. The grey ring inside its cup is a permanent magnet. This particular motor is an outrunner, with the stator inside the rotor.Jun 9, 2022 · To solve the problem of tension stress caused by centrifugal force and caused by high-speed operation of permanent magnet (PM) rotor, a FeCo-based PM rotor structure model is proposed. Based on the thick-walled cylinder theory, the uniform analytical calculation formulas of strain field, displacement field, and stress field of high-speed permanent magnet rotor are derived, and the stresses of ... The advantages of choosing Sintex® magnetic rotors are as follows: Patented solutions. Complete solutions. 100% sealed enclosure – can run as wet runner. Corrosion-resistant materials. High efficiency / low energy loss. Maintenance-free. Long service life. …High-speed or ultra-high-speed permanent magnet synchronous motors (PMSMs) have a strong trend of application in modern industry due to those simple structures and high power density. 1,2 For high-speed motors or generators, the rotor speed is normally above 30,000 r/min even may exceed 100,000 r/min. Designs of such high …Axial flux permanent magnet (AFPM) machines are good candidates for electric vehicle applications due to their high torque density, improved efficiency, and better flux distribution; thus, they are often used. A dual-rotor single-stator AFPM machine with four differently shaped permanent magnet (PM) rotors is investigated. The main aim of …Today’s automotive industry has focused its studies on electric vehicles (EVs) or hybrid electric vehicles (HEVs) rather than gasoline-powered vehicles. For this reason, more investment has been made in electric motors with high efficiency, high torque density, and high-power factor to be used in both EVs and HEVs. In this study, an outer-rotor …Non−Magnetic Rotor Core Rotor Magnets Rotor Pole Pieces Figure 2: Axial View of a Flux Concentrating Motor The geometry of one type of internal magnet motor is shown (crudely) in Figure 2. The permanent magnets are oriented so that their magnetizationis azimuthal. They are located between wedges of magnetic material (the pole pieces) in …May 19, 2021 · Metrics. Permanent magnets constructed from metal ions and organic linkers using molecular design principles could bring transformative advances in areas such as energy conversion, transportation ... Measure Skewing Angle. MagScope software makes it easier than ever to measure the skewing angle of skewed permanent magnet rotors, enabling the detection of skewing angle deviations. The right figure shows an example of the step skew on an IPM (Interior Permanent Magnet) rotor, represented in a cross-section graph with automatic zero …Electric machines with permanent magnet rotors are becoming increasingly popular due to the high power density that they offer relative to other configurations. Where the speed of rotation is high, the magnets are typically mounted on the surface of the rotor and retained by an outer sleeve. In the literature, a variety of analytical models have …The main objective of this paper is to design and analyze the performance of in-wheel outer rotor permanent magnet synchronous motor (PMSM) used in electric vehicles based on a previously designed ...The rotor overtemperature caused by losses is one of the important issues for the high-speed electrical machine. This paper focuses on the rotor loss analysis and CFD-thermal coupling evaluation for 105 kW, 36,000 r/min HSPMSM. Three types of sleeve materials as carbon-fiber, Titanium alloy, and stainless steel are introduced in this paper, ….
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