Design and Analysis of Novel Linear Oscillating Loading System

Zhang, Jiao; Chen, Yuan; Yan, Liang; Li, Xinglu; Zhang, Lu

doi:10.3390/app9183771

Cited by 4 publications

(4 citation statements)

References 17 publications

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“…Although LIM has many potential applications with periodic motion (air compressors, hydraulic pumps) because of their good reliability, high power density, and convenient maintenance, most studies rarely concentrate on the dynamic behaviour of the linear oscillating actuator such as as a hammer under the action of external loads (Jiao et al [36], Giuffrida et al [37]). The main efforts are directed at the simulation of hydraulic pressure distributors and working-cycle optimization (Gorodilov [38]).…”

Section: Dynamical Model Of Electric Hammermentioning

confidence: 99%

Review of Linear Electric Motor Hammers—An Energy-Saving and Eco-Friendly Solution in Industry

et al. 2023

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Standard hydraulic breaking hammers are widely used for crushing oversized blasted materials and concrete structures demolition in industry. These hammers, installed in on-surface working excavators or stationary manipulators at the dumping points of underground conveyors, provide the required limited sizes of bulk materials and enable the safe operation of other equipment (screens, crushers). In parallel, hydraulic hammers have an alternative—fully electric hammers. This paper aims to review existing linear electric motor (LEM) hammers as an energy-saving and eco-friendly solution in industry. Global market analysis is presented with potential branches of LEM hammers. Several aspects for implementation—design optimization, dynamics simulation, machine control, and performance estimation—are considered. Different case studies for LEM-hammer application are given. The preliminary measurements are demonstrated on the electric hammer of Lekatech Company, which is intended for the mining industry and construction demolition. Experiments showed that depending on the impact frequency, type of rock, and shape of the crushing tool, the time to fracture varies significantly. Optimal parameters exist for every case, for which adjusting requires online hammer control.

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Section: Dynamical Model Of Electric Hammermentioning

confidence: 99%

Review of Linear Electric Motor Hammers—An Energy-Saving and Eco-Friendly Solution in Industry

et al. 2023

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“…Applications like refrigerant pumps and compressors require linear reciprocating motion (Howard et al , 2013; Enrici et al , 2016; Jiao et al , 2019). Owing to high consumption and lack of availability of energy supply, the emphasis is currently on saving energy from household appliances, especially refrigerators that consume 20 to 40% of the house’s electrical energy.…”

Section: Introductionmentioning

confidence: 99%

Review of moving magnet linear oscillating actuators for linear compressor application

Khalid

Khan

Ullah

et al. 2022

WJE

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Purpose This paper aims to provide an overview of the recent developments and new topologies of single-phase moving magnet linear oscillating actuators (MMLOAs). The key advantage of the MMLOA when compared with conventional LOA is the absence of screws, gears and crankshaft mechanism, which results in fewer mechanical parts, simple structure, easy fabrication, lower noise levels and negligible frictional losses. Design/methodology/approach The review included papers up to August 2021. The structural designs of alternative topologies are deliberated in detail, and their relative merits and demerits are evaluated. Specific design issues, including pole and tooth number combinations, stroke length, magnet pole ratio and split ratio, are investigated. The imperative phenomena of the resonance, as well as the adjustable stroke, are also discussed in detail. Findings The electromagnetic performance in terms of thrust force of selected MMLOA topologies is compared. It is observed that the MMLOA with flux bridge topology has the highest thrust force of 365 N because of the large volume of the permanent magnets (PMs) used, which consequently increased the mass of the mover but based on overall performance analysis, single-phase end ferromagnetic Halbach surface-mounted PM LOA has the highest efficiency around 92%. Originality/value This review provides a comparative analysis for different tubular MMLOA topologies based on design construction and their electromagnetic performances.

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“…The current issue and full text archive of this journal is available on Emerald Insight at: https://www.emerald.com/insight/1708-5284.htm operation with a good reliability and less maintenance (Jiao et al, 2019). On account of high power density, high efficiency, simple structure and less number of mechanical parts, LOAs are used by many industries like robotics, biomedical, compressor, pump, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, noise and vibration effect of LOA is minimum (Kim et al , 2016). Furthermore, LOA provides high power density and fast operation with a good reliability and less maintenance (Jiao et al , 2019). On account of high power density, high efficiency, simple structure and less number of mechanical parts, LOAs are used by many industries like robotics, biomedical, compressor, pump, etc.…”

Section: Introductionmentioning

confidence: 99%

Performance and design comparison of moving-magnet linear oscillating actuators based on their mover positions

Ahmad

Ullah

et al. 2022

WJE

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Purpose This study aims to investigate and compare the characteristics of three topologies of moving-magnet linear oscillating actuator (LOA) based on their mover position. Positive aspects and consequences of every topology are demonstrated. Three topologies of axially magnetized moving-magnet LOA; outer mover, inner mover (IM) and dual stator (DS) are designed and examined. Due to its characteristically high thrust density and more mechanical strength, axially magnetized tubular permanent magnets (PMs) are used in these topologies. Design/methodology/approach LOAs are designed and optimized using parametric sweep, in term of design parameters and output parameters like thrust force, stroke and operating resonance frequency of the LOA. All the pros and cons of each topology are investigated and compared. Output parameters of the LOAs are compared using same size of the investigated LOAs. Mover mass, which plays a vital role in resonant operation, is analyzed for IM and DS designs. Investigated LOAs are compared with conventional designs of LOA for compressor in refrigeration system with regards of motor constant, stroke and thrust per PM mass. Findings This paper analyzes three topologies of moving-magnet LOAs. The basic difference between investigated LOAs is the radius of tubular-shaped mover from its central axis. All the design parameters are compared and concluded that thrust per PM mass of IMLOA is maximum. OMLOA provides maximum motor constant of value 180 N/A. DSLOA provides thrust force with motor constant 120 N/A and required intermediate materials of PMs. All the three designs give the best results in terms of motor constant and thrust per PM mass, compared to conventional designs of LOA. Originality/value This paper determines the impact of mover position from its central axis in a tubular-shaped moving-magnet LOA. This work is carried out in correspondence of latest papers of LOA.

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Design and Analysis of Novel Linear Oscillating Loading System

Cited by 4 publications

References 17 publications

Review of Linear Electric Motor Hammers—An Energy-Saving and Eco-Friendly Solution in Industry

Review of Linear Electric Motor Hammers—An Energy-Saving and Eco-Friendly Solution in Industry

Review of moving magnet linear oscillating actuators for linear compressor application

Performance and design comparison of moving-magnet linear oscillating actuators based on their mover positions

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