cog

The cogging torque was the main factor that causes a PM stepping motor to be vibrated, noisy and even influences its safe operation.

This paper is concerned on studying the logging force and optimizing the sleeve length of the iron- cored to reduce the cogging force.

Since the LSR to be detected with cogging structure, which makes the gap sensor's output with cogging effect.

However, the interaction between the permanent magnet and slotted armature lamination produces cogging, which may cause noise and vibration.

Cogging torque is one of the main concerns of permanent magnet motor.

The cogging torque can be reduced efficiently by suitable selection of the relative angle between dual stators .

Stepped magnet configuration with approximate skew strategy is then applied to reduce the cogging torque and start wind speed.

Step skewing of rotor magnets is an efficient manner for reducing harmonics and minimizing cogging torque and torque ripple.

Cogging torque is one of the most important parameters of PM motors, which causes torque ripple, vibration and acoustic noise.

The first stage is called primary rolling, or cogging.

Based on numeric calculation of magnetic fields, the cogging force is calculated in terms of magnetic energy way.

During manufacturing in cogging workshop, it produces a lot of oxide filing, these filings get into precipitating tank through the channel.

Two methods of reducing cogging torque, namely, the stator tooth notching and the two rotor pole stacks shifting are presented.

Accordingly, a cogging torque and noise are reduced without reducing a back-electromotive force, thereby obtaining a high efficiency.

The results showed that suitable magnet poles notching could reduce the cogging torque effectively.

Proposed a PDC cogging cutting angle calculation method that adapt to every complex movement condition.

From this technique and the relation to an old cog wheel, the test was called a cogging test.

Cogging is a problem in permanent magnet alternators, especially for wind generators.

Moreover, the force ripple arose by end effect and cogging effect also exists in system.

Factors influencing noise of the motor systems such as cogging torque, HALL signal errors and armature magnetic field are analyzed.

1 structure is studied. The reason why such structure can depress the cogging force is analyzed.

Study on the Cogging Torque of Polyphase Transverse Flux Permanent Magnet Machine With Concentrated Flux Rotor

Failure Analysis and Revamping of Wimble Gear in Master Transmission Reduction Box of High-speed Wire Cogging Mill

Analysis of the Optimization of the Pole Arc Combination to Reduce the Cogging Torque in PM Motors

Minimization Techniques of Cogging Torque in Permanent Magnet Brushless DC Motors

A Study of Cogging Force in Linear Permanent Magnet Motor

Analyses on the Implementation of Huge Reduce Size and Elongation for Billets in Three-high Cogging Mill

Fully Coupled Temperature-Displacement Simulation of H-Shape Metal Cogging

Calculation of Cogging Torque in Claw Pole Permanent Magnet Synchronous Motors

Machining the cogging of moving vanes in Flue Gas Turbine by numerical control Grinding Machine

New method for reducing cogging torque in surface-mounted permanent magnet motors

A Method for Reducing Cogging Torque by Different Slot Widths in Permanent Magnet Motors

Cogging Torque Reduction Method of Magnet Shifting in Permanent Magnet Motors

Visco-plastic Finite Elements Analysis on Multi-pass Cogging of Hot Rolled H-beam

semi-closed slots, in which the effect of the slot openings is relatively small for most aspects of performance except cogging

Methods of Restrain Cogging Torque of Permanent Magnet Motor

Analysis of Skew Effects of Slots on Cogging Torque for BLDC Motors on MATLAB

Deformation analysis of hot rolling cogging process of shape-metal

Method of Reducing Cogging Torque in Permanent Magnet Motor

Fourier Analysis of Cogging Torque in Motors

Minimization of Cogging Force in Moving Magnet Type PMBLDCLM

Analytical Calculation of Cogging Torque in Brushless DC Motors Based on MATLAB

Cogging torque research on Flux Reversal Machine based on FEM

In this paper, firstly introduce the development status of Maglev Train and reducing cogging effect of HSMV gap sensor;

Cogging force estimator based on BP neural network of PMLSM