• Application of cyclic coherence function to bearing fault

    2016-6-17 · 3. Electromagnetic vibration in wind turbine generators Electromagnetic vibration (EV) is an intrinsic phenomenon originated from alternating deformation of the stator of generators. As shown in Fig. 2a the three phase currents in stator windings are denoted by i A i B and i C among which there are 120° phase differences.

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  • An Electromagnetic Frequency Increased Vibration Energy

    This paper presents an impact-based frequency increased electromagnetic vibration energy harvester to scavenge energy in a low frequency environment. To realize the novel impact based frequency up-conversion mechanism a coil has been elastically anchored with a platform on which four permanent magnets are arranged in such a way that a strong closed magnetic flux path linking the coil is formed.

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  • How Electromagnetic Propulsion Will Work HowStuffWorks

    Goodwin describes the electromagnet he is using as a solenoid which is basically a superconducting magnetic wire wrapped around a metal cylinder. The entire structure will have a diameter of 1 foot (30.5 cm) a height of 3 feet (91.4 cm) and a weight of 55.12 pounds (25 kg). The wire used for this propulsion system is a niobium-tin alloy.

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  • An electromagnetic inerter-based vibration suppression

    2019-11-23 · using high performance bulk magnets and multiturn coils 14 . In the last decade interest has grown in employing electromagnetic devices for structural vibration control. Early works focused in the possibility of using electromagnetic dampers 18 . The idea was to substitute the damper on a TMD for a electromagnetic device capable of energy dis-

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  • Impact of rotor eccentricity on electromagnetic vibration

    Rotor eccentricity is a common fault in permanent magnet synchronous motors. Its effect on the vibration and noise is thoroughly investigated in this paper. The additional force harmonics due to static eccentricity and dynamic eccentricity are firstly derived with the rotational direction of force harmonics into consideration. A finite element model is built to calculate the force and two

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  • An electromagnetic inerter-based vibration suppression

    2019-11-23 · using high performance bulk magnets and multiturn coils 14 . In the last decade interest has grown in employing electromagnetic devices for structural vibration control. Early works focused in the possibility of using electromagnetic dampers 18 . The idea was to substitute the damper on a TMD for a electromagnetic device capable of energy dis-

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  • Analysis and evaluation of electromagnetic vibration and

    2019-3-18 · Liu X T Rao S S. Vibration analysis in the presence of uncertainties using universal grey system theory. J Vib Acoust 2018 140 031009. Article Google Scholar 21. Islam M S Islam R Sebastian T. Noise and vibration characteristics of permanent-magnet synchronous motors using electromagnetic and structural analyses.

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  • Electromagnetic Vibration Test for Durability Verification

    2006-9-13 · Electromagnetic Vibration Test for Durability Verification of Ground Coil. A huge number of ground coils used in superconducting maglev system are vibrated by electromagnetic force for a long period of time. Durability verification of the ground coils on the assumption of actual electromagnetic vibration is important in securing the total

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  • Electromagnetic Vibrational Energy Harvesting Using Boost

    2014-5-21 · Electromagnetic Vibrational Energy Harvesting Using Boost And Buck Boost Converterwritten by Guturu Suresh Kumar Vishal Mishra G. Sridhar Babu published on 2014/05/21 download full article with reference data and citations

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  • Vibration Suppression Using Electromagnetic Resonant Shunt

    2008-7-1 · Vibration Suppression Using Electromagnetic Resonant Shunt Damper Tsuyoshi Inoue Tsuyoshi Inoue Department of Mechanical Science and Engineering School of Engineering Nagoya University Nagoya 464-8603 Japan. e-mail inoue nuem.nagoya-u.ac.jp. Search for other works by this author on This Site.

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  • Electromagnetic Vibrational Energy Harvesting Using Boost

    2014-5-21 · Electromagnetic Vibrational Energy Harvesting Using Boost And Buck Boost Converterwritten by Guturu Suresh Kumar Vishal Mishra G. Sridhar Babu published on 2014/05/21 download full article with reference data and citations

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  • Wideband vibration energy harvesting using electromagnetic

    The underlying effects are independent of the device-scale and the transduction methods and are explained using a modified Duffing oscillator model. One of the key requirements for fully integrated electromagnetic transducers is the CMOS compatible batch-fabrication of

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  • Electromagnetic vibration process for producing bulk

    2005-3-6 · Here we present a new method for producing bulk metallic glasses by using electromagnetic vibrations with simultaneous imposition of an alternating electric current and a magnetic field. This

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  • Review of vibration‐based electromagnetic–piezoelectric

    2020-12-11 · The Piezoelectric (PE) electromagnetic (EM) electrostatic and triboelectric transduction may be utilized to harvest power from vibration energy available on structure which otherwise may be going waste. Moreover for enhancing power generation hybrid vibration energy harvesters are developed by combining two of such transduction mechanisms.

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  • HHO Generation using High Frequency electromagnetic

    2021-4-19 · HHO Generation using High Frequency electromagnetic waves on water Language To browser these website it s necessary to store cookies on your computer. An excited molecule internally vibrates and as a result of this vibration part of the energy of the propagating wave is converted into kinetic energy and is simply lost.

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  • An electromagnetic inerter-based vibration suppression

    2019-11-23 · electromagnetic vibration absorbers able to harvest energy convert it into usable power and use it for vibration control and health monitoring. Keywords vibration absorber electromagnetic transducer energy harvesting (Some figures may appear

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  • (PDF) ELECTROMAGNETIC VIBRATION ENERGY HARVESTER USING

    The electromagnetic energy harvester in current scenario has received an importance in harvesting the energy dissipated due to vibration in macro scale. The proposed work is developed in the motive of harvesting the energy from vibration using a

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  • Increasing Output Power of Electromagnetic Vibration

    2015-2-21 · Increasing Output Power of Electromagnetic Vibration Energy Harvesters using Improved Halbach Arrays Dibin Zhu1 Steve Beeby John Tudor and Nick Harris School of Electronics and Computer Science University of Southampton Southampton SO17 1BJ UK Abstract This paper extends previously published studies into the performance of Halbach arrays

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  • A new energy harvester using a piezoelectric and

    2013-12-11 · The piezoelectric-electromagnetic vibration energy harvester has two output peak frequencies. The peak frequency of the electromagnetic occurs at 8.373 Hz while the peak frequency of the piezoelectric occurs at 14.83 Hz. So it has a considerable power output in the range of 6 to 20 Hz which is three times the bandwidth of the stand-alone

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  • China High Quality Electromagnetic Vibration Test Machine

    Electromagnetic vibration tables are widely used in defense aviation communications electronics automotive home appliances and other industries. This type of equipment is used to find early faults simulate actual working condition assessment and structural strength test. The product has a wide range of applications wide application

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  • Multi-directional electromagnetic vibration energy

    2017-3-8 · In this paper a multi-directional electromagnetic vibration energy harvester (EVEH) using the circular Halbach array (HA) is presented based on the Faraday s law of electromagnetic induction. The circular HA is a specific arrangement of permanent magnets which could concentrate the magnetic field inside the circular array by a certain rule while reduce the magnetic field outside the

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  • Electromagnetic vibration process for producing bulk

    2005-3-6 · Here we present a new method for producing bulk metallic glasses by using electromagnetic vibrations with simultaneous imposition of an alternating electric current and a magnetic field. This

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  • Vibration Harvesting using Electromagnetic Transduction

    Corpus ID 107861745. Vibration Harvesting using Electromagnetic Transduction inproceedings Waterbury2011VibrationHU title= Vibration Harvesting using Electromagnetic Transduction author= A. Waterbury year= 2011

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  • Micro-vibration suppressing using electromagnetic absorber

    2020-5-1 · The natural frequency of electromagnetic vibration absorber can be tuned actively by applying current to the coil and the output displacement of GMAs can be magnified by using displacement amplifiers to achieve active vibration isolating.

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  • Piezoelectric vs electromagnetic vibration energy harvesting

    This is called electromagnetic induction and is used by electromagnetic vibration energy harvesters to convert vibrations into electricity. This is the same principle that is used in e.g. transformers and electric motors. Electromagnetic energy harvesting devices are typically designed as a system of springs magnets and coils where the magnet

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  • Electromagnetic vibration energy harvesting using an

    This paper reports an electromagnetic vibration energy harvester using an improved Halbach array. A Halbach array is a specific arrangement of permanent magnets that concentrates the magnetic field on one side of the array while cancelling the field on the other side to almost zero. Previous research showed that although the Halbach array has higher magnetic field density compared to normal

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  • Electromagnetic Vibration Test for Durability Verification

    2006-9-13 · Electromagnetic Vibration Test for Durability Verification of Ground Coil. A huge number of ground coils used in superconducting maglev system are vibrated by electromagnetic force for a long period of time. Durability verification of the ground coils on the assumption of actual electromagnetic vibration is important in securing the total

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