Suppression of Rotational Speed Variation Excited by Reduction Gear Mechanism by Means of Self-Compensating Control. 2nd Report. Effects of Tracking Band-Pass Filters Integrated into Self-Compensating Control Loop.

Current domestic and international for the experimental apparatus been associated asynchronous motor design generally used hand horseshoe magnet rotates to drive the rotor rotates, While it is possible to achieve, the apparatus is too simple, and the effect is not in great satisfaction. To further improve the experimental results, a new type of asynchronous motor experimental device is designed, whose working mechanism is a DC motor as a driving source, driven by a reduction gear mechanism to produce a rotating magnetic field, the control circuit can be achieved by utilizing the rotational speed and adjust direction. By apparatus of the stator, rotor apparatus, the related motor control and display device design can make the operation more stable, more easily observed. The experimental apparatus can enhance students' awareness and understanding of asynchronous motor, so that the original abstract theory becomes boring incomprehensible gusto, to stimulate students' desire for knowledge, strengthen students' practical knowledge and ability, with higher practical significance. The apparatus simple shaped, with simple and safe operation, is able to facilitate teaching, with better promote the use of value.

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In-process tool rotational speed variation with constant heat input in friction stir welding of AZ31 sheets with variable thickness

10.1063/1.5008135 ◽

2017 ◽

Cited By ~ 1

Author(s):

Gianluca Buffa ◽

Davide Campanella ◽

Archimede Forcellese ◽

Livan Fratini ◽

Michela Simoncini

Keyword(s):

Friction Stir Welding ◽

Variable Thickness ◽

Heat Input ◽

Rotational Speed ◽

Tool Rotational Speed ◽

Constant Heat ◽

Friction Stir ◽

Speed Variation

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A Fast Tacho-Less Order Tracking Method for Gear Fault Diagnosis Under Large Rotational Speed Variation Conditions Based on Multi-stage Generalized Demodulation

Advances in Mechanical Design - Mechanisms and Machine Science ◽

10.1007/978-981-32-9941-2_76 ◽

2019 ◽

pp. 904-917

Author(s):

Qi Zhou ◽

Wenjin Liu ◽

Chaoqun Wu

Keyword(s):

Fault Diagnosis ◽

Rotational Speed ◽

Tracking Method ◽

Speed Variation ◽

Order Tracking ◽

Multi Stage ◽

Gear Fault ◽

Gear Fault Diagnosis

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Rotational speed variation assessment of centrifugal pump-as-turbine as an energy utilization device under water distribution network condition

Energy ◽

10.1016/j.energy.2020.118502 ◽

2020 ◽

Vol 213 ◽

pp. 118502 ◽

Cited By ~ 2

Author(s):

Mojtaba Tahani ◽

Ali Kandi ◽

Mahdi Moghimi ◽

Shahram Derakhshan Houreh

Keyword(s):

Centrifugal Pump ◽

Rotational Speed ◽

Water Distribution ◽

Distribution Network ◽

Water Distribution Network ◽

Energy Utilization ◽

Speed Variation ◽

Network Condition ◽

Variation Assessment

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Operational Control of Hydraulic Turbines Assisted by Speed Variation

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.597.9 ◽

2013 ◽

Vol 597 ◽

pp. 9-13

Author(s):

Uwe Borchert ◽

Janusz A. Szymczyk ◽

Janusz Iwan

Keyword(s):

Power Management ◽

Rotational Speed ◽

Single Parameter ◽

Load Control ◽

Operating Parameters ◽

Operational Control ◽

Speed Variation ◽

Hydraulic Turbines

The paper discusses the concept of single-parameter operational control of turbomachinery, with particular application for hydraulic turbines for power management facilities, subject to varying operating parameters, where load control is additionally facilitated by changing rotational speed.

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