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Radial electromagnetic type unbalance vibration self-recovery regulation system for high-end grinding

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0763-1

Abstract: Modern rotating machines, which are represented by high-end grinding machines, have developed toward high precision, intelligence, and high durability in recent years. As the core components of grinding machine spindles, grinding wheels greatly affect the vibration level during operation. The unbalance vibration self-recovery regulation (UVSRR) system is proposed to suppress the vibration of grinding wheels during workpiece processing, eliminating or minimizing the imbalance. First, technical principles and the system composition are introduced. Second, the balancing actuator in the UVSRR system is analyzed in detail. The advanced nature of the improved structure is presented through structure introduction and advantage analysis. The performance of the balancing actuator is mutually verified by the theoretical calculation of torque and software simulation. Results show that the self-locking torque satisfies the actual demand, and the driving torque is increased by 1.73 times compared with the traditional structure. Finally, the engineering application value of the UVSRR system is verified by laboratory performance comparison and actual factory application. The balancing speed and effect of the UVSRR system are better than those of an international mainstream product and, the quality of the workpieces machined in the factory improved by 40%.

Keywords： UVSRR system     radial electromagnetic type     vibration suppression     performance simulation     engineering    

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Calculation method of radial stress and deformation on conic threaded connections with interference fit

Shoujun CHEN, Qiang LI, Qi AN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 302-307 doi: 10.1007/s11465-010-0018-9

Abstract: This paper presents a calculation method for radial stress distribution and deformation on conic threadedThe model offers a new way of calculating the radial stress and deformation on conic thread connections

Keywords： conic threaded connections     interference fit     radial stress     deformation     finite element analysis (FEA)    

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High heat flux thermal management through liquid metal driven with electromagnetic induction pump

Frontiers in Energy 2022, Volume 16, Issue 3,   Pages 460-470 doi: 10.1007/s11708-022-0825-9

Abstract: A high-performance electromagnetic induction pump driven by rotating permanent magnets is designed to

Keywords： high heat flux     liquid metal     electromagnetic pump     minichannel heat sink     thermal interface material    

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Review on electromagnetic welding of dissimilar materials

K. SHANTHALA,T. N. SREENIVASA

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 363-373 doi: 10.1007/s11465-016-0375-0

Abstract:

Electromagnetic welding (EMW) is a high-speed joining technique that is used to join similar or dissimilarThis technique uses electromagnetic force to mainly join conductive materials.In this paper, the research and progress in electromagnetic welding are reviewed from various perspectives

Keywords： electromagnetic     welding     impact     dissimilar materials    

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Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 248-257 doi: 10.1007/s11705-019-1853-9

Abstract: Hierarchical ZSM-5 zeolite with radial mesopores is controllably synthesized using piperidine in a NaOHIn this manner, radial mesopores are formed in the ZSM-5 zeolite with a maximal preservation of the microporesThe incorporation of the radial mesopores results in micropores that are interconnected which shortened

Keywords： hierarchical ZSM-5 zeolite     protective desilication     piperidine     radial mesopores     benzene alkylation    

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Different manipulation mode analysis of a radial symmetrical hexapod robot with leg–arm integration

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 8-8 doi: 10.1007/s11465-021-0664-0

Abstract: With the widespread application of legged robot in various fields, the demand for a robot with high locomotion and manipulation ability is increasing. Adding an extra arm is a useful but general method for a legged robot to obtain manipulation ability. Hence, this paper proposes a novel hexapod robot with two integrated leg–arm limbs that obtain dexterous manipulation functions besides locomotion ability without adding an extra arm. The manipulation modes can be divided into coordinated manipulation condition and single-limb manipulation condition. The former condition mainly includes fixed coordinated clamping case and fixed coordinated shearing case. For the fixed coordinated clamping case, the degrees of freedom (DOFs) analysis of equivalent parallel mechanism by using screw theory and the constraint equation of two integrated limbs are established. For the fixed coordinated shearing case, the coordinated working space is determined, and an ideal coordinated manipulation ball is presented to guide the coordinated shearing task. In addition, the constraint analysis of two adjacent integrated limbs is performed. Then, mobile manipulation with one integrated leg–arm limb while using pentapod gait is discussed as the single-limb manipulation condition, including gait switching analysis between hexapod gait and pentapod gait, different pentapod gaits analysis, and a complex six-DOF manipulation while walking. Corresponding experiments are implemented, including clamping tasks with two integrated limbs, coordinated shearing task by using two integrated limbs, and mobile manipulation with pentapod gait. This robot provides a new approach to building a multifunctional locomotion platform.

Keywords： leg–arm integration     hexapod robot     fixed coordinated manipulation     mobile manipulation    

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Comparison of optimal capacitor placement methods in radial distribution system with load growth and

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 197-213 doi: 10.1007/s11708-013-0249-7

Abstract: sensitivity (PLS) index-based approach is proposed to determine the optimal location of the capacitors in the radial

Keywords： load growth     load models     reactive power compensation     radial distribution system     power loss index (PLI)    

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A total torque index for dynamic performance evaluation of a radial symmetric six-legged robot

Kejia LI, Xilun DING, Marco CECCARELL

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 219-230 doi: 10.1007/s11465-012-0320-9

Abstract:

This article focuses on the dynamic index and performance of a radial symmetric six-legged robot.

Keywords： six-legged robots     dynamic modeling     performance index    

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Analytical model and finite element computation of braking torque in electromagnetic retarder

Lezhi YE,Guangzhao YANG,Desheng LI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 368-379 doi: 10.1007/s11465-014-0314-x

Abstract:

An analytical model has been developed for analyzing the braking torque in electromagnetic retarder

Keywords： electromagnetic retarder     magnetic field distribution     magnetic circuit     finite element method    

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aerogels decorated with multi-walled carbon nanotubes: preparation, characterization, and application for electromagnetic

Jian LI,Caichao WAN

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 341-346 doi: 10.15302/J-FASE-2015082

Abstract: Electromagnetic wave pollution has attracted extensive attention because of its ability to affect theIn addition, the aerogels show a high electromagnetic interference (EMI) value of 19.4 dB.

Keywords： cellulose aerogels     carbon nanotubes     electromagnetic interference shielding     composites    

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An efficient stochastic dynamic analysis of soil media using radial basis function artificial neural

P. ZAKIAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 470-479 doi: 10.1007/s11709-017-0440-8

Abstract: Since a lot of engineering problems are along with uncertain parameters, stochastic methods are of great importance for incorporating random nature of a system property or random nature of a system input. In this study, the stochastic dynamic analysis of soil mass is performed by finite element method in the frequency domain. Two methods are used for stochastic analysis of soil media which are spectral decomposition and Monte Carlo methods. Shear modulus of soil is considered as a random field and the seismic excitation is also imposed as a random process. In this research, artificial neural network is proposed and added to Monte Carlo method for sake of reducing computational effort of the random analysis. Then, the effects of the proposed artificial neural network are illustrated on decreasing computational time of Monte Carlo simulations in comparison with standard Monte Carlo and spectral decomposition methods. Numerical verifications are provided to indicate capabilities, accuracy and efficiency of the proposed strategy compared to the other techniques.

Keywords： stochastic analysis     random seismic excitation     finite element method     artificial neural network     frequency domain analysis     Monte Carlo simulation    

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A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization

Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 463-467 doi: 10.1007/s11465-011-0225-z

Abstract: is difficult to achieve precise control in the 6-DOF (degree of freedom) erector in the 2-DOF 5-bar radialHence, this paper proposes a redundantly actuated PRPRP radial mechanism for the segment erector.When the redundant actuator is unlocked, the radial mechanism is able to adjust its posture, which hasthe PRPRP mechanism can ensure the synchronization of the two driving hydraulic cylinders along the radial

Keywords： redundant actuation     parallel mechanisms     five-bar mechanisms     segment erectors     shield machines    

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A new method for boring of non-circular holes

ZHANG Kai, HU De-jin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 456-460 doi: 10.1007/s11465-006-0058-3

Abstract: A revolving electromagnetic actuation mechanism composed of an electromagnetic stator and an electromagneticcontrol current and the actuation force was established, and the synchronizing control method of the electromagnetic

Keywords： electromagnetic actuation     control method     displacement     flexible body     revolving electromagnetic    

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Study on principle of electromagnetic-proof bionics and fault-restore mechanism

Yuan Liang,Man Menghua and Chang Xiaolong

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 76-85

Abstract: Our study includes the response of electrical- interference- proof circuit in electromagnetic environmentIn this way，the research laid a theoretical foundation for electromagnetic protection and the self-restoration

Keywords： bionics     electromagnetic bionics     electromagnetic protection     degeneracy     plasticity     robustness    

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Flexible liquid metal coil prepared for electromagnetic energy harvesting and wireless charging

Shen GUO, Peng WANG, Jichuan ZHANG, Wenpeng LUAN, Zishuo XIA, Lingxiao CAO, Zhizhu HE

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 474-482 doi: 10.1007/s11708-019-0632-0

Abstract: This paper reported a study on a flexible liquid metal coil (LMC) for electromagnetic collection fromthe transmission line for self-powered sensor and electromagnetic generation for wireless charging ofThe present study opens the way for further applications of elastic LMC in electromagnetic energy harvesting

Keywords： liquid metal     Galinstan     flexible coil     electromagnetic energy harvesting     wireless charging    

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Title Author Date Type Operation

Radial electromagnetic type unbalance vibration self-recovery regulation system for high-end grinding

Journal Article

Calculation method of radial stress and deformation on conic threaded connections with interference fit

Shoujun CHEN, Qiang LI, Qi AN,

Journal Article

High heat flux thermal management through liquid metal driven with electromagnetic induction pump

Journal Article

Review on electromagnetic welding of dissimilar materials

K. SHANTHALA,T. N. SREENIVASA

Journal Article

Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Journal Article

Different manipulation mode analysis of a radial symmetrical hexapod robot with leg–arm integration

Journal Article

Comparison of optimal capacitor placement methods in radial distribution system with load growth and

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Journal Article

A total torque index for dynamic performance evaluation of a radial symmetric six-legged robot

Kejia LI, Xilun DING, Marco CECCARELL

Journal Article

Analytical model and finite element computation of braking torque in electromagnetic retarder

Lezhi YE,Guangzhao YANG,Desheng LI

Journal Article

aerogels decorated with multi-walled carbon nanotubes: preparation, characterization, and application for electromagnetic

Jian LI,Caichao WAN

Journal Article

An efficient stochastic dynamic analysis of soil media using radial basis function artificial neural

P. ZAKIAN

Journal Article

A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization

Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG

Journal Article

A new method for boring of non-circular holes

ZHANG Kai, HU De-jin

Journal Article

Study on principle of electromagnetic-proof bionics and fault-restore mechanism

Yuan Liang,Man Menghua and Chang Xiaolong

Journal Article

Flexible liquid metal coil prepared for electromagnetic energy harvesting and wireless charging

Shen GUO, Peng WANG, Jichuan ZHANG, Wenpeng LUAN, Zishuo XIA, Lingxiao CAO, Zhizhu HE

Journal Article