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Wu et al. [20] proposed a circuit breaker fault diagnosis method based on a vibration signal envelope, which reduces software and hardware overhead. Rudsari et al. [21] ... The energy storage motor current signal directly reflects the energy storage state of the circuit breaker operating mechanism. Reasonable use of this signal can achieve ...
An energy harvesting system that extracts energy from the combustion instability of a solid rocket motor was pre-sented in this paper. This study employed the phenomena of vortex shedding …
Numerical simulation study of the effect of mechanical vibration on heat transfer in a six-fin latent heat thermal energy storage unit. Author links open overlay panel Yuanhao Wu a b, Maji Luo a b, Sheng Chen b c, ... .Sensible heat storage and latent heat storage are the two main methods of storing thermal energy. The heat capacity of latent ...
Fault diagnosis method for energy storage mechanism of high voltage circuit breaker based on CNN characteristic matrix constructed by sound-vibration signal ... correlation coefficient was used to ...
Therein, the vibration energy is basically difficult to be converted into electrical energy, and the energy storage capacitor becomes tough to store electricity. Moreover, Fig. 15 .(c) depicts this regularization performance as well, where the acquired scores s γ, R e difference between cost function with and without regularization also shows ...
A nonlinear vibration model of cavern leaching tubing string in salt cavern gas storage was established by using the energy method, element method, and Hamilton principle. The model considers the fluid force in the tube and the nonlinear contact/collision force between the center tube and middle tube.
Harvesting energy from surrounding vibrations is an effective method for powering various low-power electronic devices. ... the unidirectional rotation of the small bevel gear causes the generator to rotate and generate electrical energy. The energy storage module stores the electrical energy in the supercapacitor after rectification and ...
This paper have discussioned some parts of the vibration energy harvesting: collection principle, collection method and the energy storage circuit. At present, the research and design of mechanical vibration energy harvesting structures focus on three aspects: broadening the collection frequency band, collecting dimensions and improving efficiency.
Vibration energy harvesting (VEH) is a method for recovering energy from unwelcome environmental vibrations. The movement of vehicles on bridges and the operation of ... storage circuits and discovering novel materials should be the main objectives of future research. Such EHs are not only a viable battery replacement source but also a fresh
effective method for supply energy is to use rectifier circuit and storage devices as an intermediate link, which converts alternating current into direct current, accumulates and stores the energy, then supplies power to the microelec-tronic devices. Energy storage and electronic circuits for energy harvesting are well studied and defined ...
Nakagawa et al., 10 established a new torsional coupled vibration model based on bond graph method to research the motion and modal behavior of planetary gear train. ... He is mainly engaged in the research and development of compressed air energy storage system and the research of internal flow and heat transfer of turbomachinery.
A new method including suspension and wheel vibration energy regeneration is proposed in this study to coordinate the contradiction between vibration energy regeneration and dynamic performance of in-wheel motor electric vehicles (IWM-EVs). The influence mechanism of unsprung mass on the dynamic characteristics of IWM-EVs is investigated from the …
During the operation of high-temperature superconducting (HTS) pinning maglev vehicle, vibration is inevitable caused by track irregularities existence. By interacting with the permanent magnet guideway (PMG) below vehicle, EMSD devices own the capability to reduce vehicle vibration and convert vibration energy to the induced current in coil, which can be …
the technology of energy storage. Spiral spring energy storage (SSES) is a newly proposed way in recent years with various superiorities of large power density, high performance–cost ratio, long life-time, and nonpollu-tion.2–5 In general, the spiral spring is manufactured with a slender material and wound up in the shape of a spiral curve.
Energy harvesting is the method of extraction of electrical energy from ambient sources of energy, such as heat, light, wind and vibration [1,2,3,4,5,6,7,8,9,10].Even though the electrical power generated is in terms milli–micro watts, energy harvesting is gaining much importance in the recent decade due to its rapid increase in the wearable devices and sensor …
Emerging energy harvesting methods, including solar cells, [7, 8] wind turbines, thermoelectric generators, and vibration energy harvesters (VEHs), [10, 11] offer new energy solutions for applications such as real-time environmental monitoring, emergency disaster alerts, and unmanned control in remote or inaccessible areas. The deployment of ...
Due to the limitations of batteries, in the future, vibrational energy-harvesting technology will be used, which converts vibration energy into electrical energy to power small electronic devices, such as measuring instruments in remote or hostile environments where batteries are not an available option, and this is the only solution [7, 8, 9].
As one of the important vibration-based energy harvesting methods, piezoelectric transduction has received much attention because of the simple structure of piezoelectric generator and ease of application characteristic of piezoelectric materials. The piezoelectric transducer can be used to transform mechanical strain into the electrical charge ...
This paper presents a theoretical study on energy harvesting from structural vibration caused by combustion instability of a solid rocket motor through the motor burnout. …
Centrifugal pump is widely used as a storage pump in energy storage station, and its cavitation phenomenon in start-up and shut-off processes can lead to vibration, which is crucial for the stability and safety of operations. In this work, a synchronous experimental system consisting of the tested pump, high-speed camera, and measuring sensors is established to …
For commercialisation of PCMs (liquid-solid phase change materials) based energy storage systems, the biggest challenge is to improve the thermal responsive rate of PCMs the present authors'' latest study, it is found mechanical vibration may be utilized to address the challenge as most engineering systems work under vibration conditions. However, …
AB - This paper presents a novel method for suppressing multimodal vibrations in structures by using the controlled harvesting and storage of vibration energy as electrical charge. Unlike a traditional semi-active system in which vibration energy is dissipated using a controlled variable dissipater, the proposed system harvests vibration energy ...
In this paper, the concept of using the structural vibration in an SRM for harvesting of electrical energy is studied. A Piezoelectric energy harvester was designed for the range of frequency of the vibration at a point on the SRM. This harvested energy can then be rectified and stored to run remote sensors around the SRM.
currently dominate in low frequency vibration harvesting, this new method provides an alternate scheme which overcomes the major drawbacks of piezoelectric vibration energy harvesters and can operate at a higher frequency range. A new class of vibration energy harvester based on MsM, Metglas 2605SC, is deigned, developed, and tested.
Thermal storage devices, integral to optimizing renewable energy utilization, are broadly categorized into sensible heat storage and chemical energy storage [1]. Among the available techniques, phase change energy storage stands out due to its high heat storage density and straightforward design.
The source of vibration can be converted into electrical energy by piezoelectric, electrostatic, and electromagnetic methods. This research work encompasses the recent …
The benefits of exploiting bistable nonlinearities in vibration energy harvesting have been the impetus for much recent research. A breadth of studies have been undertaken …
The operational performance of the spiral spring energy storage system is affected by the vibration of the spiral spring and the electrical loss of the permanent magnet synchronous motor. It is ...
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