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An investigation into the vibration of harmonic drive systems
M. Masoumi, H. Alimohammadi
Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 409-419 doi: 10.1007/s11465-013-0275-5
Harmonic drive systems are precise and specific transmission gear systems which are beneficial inThis paper presents a vibration analysis of harmonic drive systems using the shell theory.
Keywords: harmonic drive system strain wave gearing mechanism vibration analysis natural frequencies
Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0674-6
Keywords: harmonic drive meshing flexibility matrix meshing force loading backlash flexspline contact analysis
Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm
Zeyu Wu, Zhe Chen, Lin Peng
Frontiers of Medicine 2012, Volume 6, Issue 1, Pages 85-88 doi: 10.1007/s11684-012-0174-x
The harmonic scalpel is a hemostatic device primarily designed for use in laparoscopic surgery.During the last few years, many surgeons have begun to use the harmonic scalpel in open surgery.The aim of the present study is to determine the value of the harmonic scalpel in open operation forOpen surgery performed with the harmonic scalpel on 105 patients was compared with open operation usingThe hospital stay was shorter for the harmonic scalpel group than for the conventional surgery group
Keywords: abdominal aortic aneurysm harmonic scalpel minimally invasive
Electromagnetic interference modeling and suppression techniques in variable-frequency drive systems
Le YANG, Shuo WANG, Jianghua FENG
Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3, Pages 329-353 doi: 10.1007/s11465-018-0466-1
Keywords: variable-frequency drive (VFD) electromagnetic interference (EMI) motor drive modeling EMI noise suppression
Multi-harmonic forced vibration and resonance of simple beams to moving vehicles
Frontiers of Structural and Civil Engineering Pages 981-993 doi: 10.1007/s11709-023-0979-5
Keywords: forced vibration linear Euler beam moving load harmonic structure frequency modulation end restraints
Power control of dual-motor electric drive for tracked vehicles
Yuan ZOU, Chengning ZHANG, Fengchun SUN, Jingbo WU,
Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1, Pages 67-72 doi: 10.1007/s11465-009-0059-0
Keywords: control electric drive tracked vehicle
SCRaMbLE drive application of synthetic yeast genome
Jin Jin, Yuan Ma, Duo Liu
Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4, Pages 832-834 doi: 10.1007/s11705-018-1749-0
Effects of elastic support on the dynamic behaviors of the wind turbine drive train
Shuaishuai WANG, Caichao ZHU, Chaosheng SONG, Huali HAN
Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3, Pages 348-356 doi: 10.1007/s11465-017-0420-7
Keywords: wind turbine drive train elastic support dynamic behavior frequency response function
Design and analysis of a new high frequency double-servo direct drive rotary valve
Muzhi ZHU,Shengdun ZHAO,Jingxiang LI
Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4, Pages 344-350 doi: 10.1007/s11465-016-0406-x
Researchers have investigated direct drive valve for many years to solve problems, such as fluid forceThis paper studied the high frequency double-servo direct drive rotary valve (DDRV), and proposed a novelstructure and drive method satisfying high reversing frequency and adequate quantity of flow.
Keywords: direct drive rotary valve computational fluid dynamics (CFD) flow regulation
Mohammad Javad REZVANIL, Mohammad Hossein KARGARNOVIN, Davood YOUNESIAN
Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4, Pages 409-418 doi: 10.1007/s11465-011-0245-8
The response of an infinite Timoshenko beam subjected to a harmonic moving load based on the third-order
Keywords: timoshenko composite beam pasternak viscoelastic foundation third-order shear deformation theory (TSDT) harmonic
Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator
Xueping PAN, Ping JU, Feng WU, Yuqing JIN
Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3, Pages 367-376 doi: 10.1007/s11465-017-0429-y
A new hierarchical parameter estimation method for doubly fed induction generator (DFIG) and driveFirstly, the parameters of the DFIG and the drive train are estimated locally under different types ofa coordination estimation method is further applied to identify the parameters of the DFIG and the drive
Keywords: wind turbine generator DFIG drive train system hierarchical parameter estimation method trajectory sensitivity
Effect of harmonic distortion on electric energy meters of different metrological principles
Illia DIAHOVCHENKO, Vitalii VOLOKHIN, Victoria KUROCHKINA, Michal ŠPES, Michal KOSTEREC
Frontiers in Energy 2019, Volume 13, Issue 2, Pages 377-385 doi: 10.1007/s11708-018-0571-1
Keywords: current distortion electric energy meter harmonics power quality
Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4, Pages 541-552 doi: 10.15302/J-FASE-2023518
Agricultural non-point source pollution is increasingly an important issue affecting surface water quality. Currently, the majority of the studies on nitrogen loss have focused on the agricultural field scale, however, the response of surface water quality at the watershed scale into the nitrogen loss at the field scale is poorly understood. The present study systematically reviewed the critical processes and major factors that nitrogen transport from farm fields to surface water bodies. The critical processes of farmland nitrogen entering surface water bodies involve the processes of nitrogen transport from farmland to ditches and the transformation processes of nitrogen during migration in ditches/rivers. Nitrogen transport from farmland to ditches is one of the prerequisites and critical processes for farmland nitrogen transport to surface water bodies. The transformation of nitrogen forms in ditches/rivers is an intermediate process in the migration of nitrogen from farmland to surface water bodies. Nitrogen loss from farmland is related to soil storage and exogenous inputs. Therefore, nitrogen input management should not only consider the current input, but also the contribution of soil storage due to the historical surpluses. Ditches/rivers have a strong retention capacity for nitrogen, which will significantly affect the process of farmland nitrogen entering surface water bodies. The factors affecting nitrogen transformation in river/ditches can be placed in four categories: (1) factors affecting hydraulic retention time, (2) factors affecting contact area, (3) factors affecting biological activity, and (4) forms and amount of nitrogen loading to river/ditches. Ditch systems are more biologically (including plants and microbes) active than rivers with biological factors having a greater influence on nitrogen transformation. When developing pollution prevention and control strategies, ecological ditches can be constructed to increase biological activity and reduce the amount of surplus nitrogen entering the water body. The present research should be valuable for the evaluation of environment impacts of nitrogen loss and the non-point source pollution control.
Keywords: nitrogen loss from soil transformation farm field scale watershed scale
System construction of a four-side primary permanent-magnet linear motor drive mechanical press
Jintao LIANG, Zhengfeng MING, Peida LI
Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4, Pages 600-609 doi: 10.1007/s11465-020-0597-z
Keywords: mechanical press direct drive primary permanent-magnet linear motor (PPMLM) servo system active disturbance
Novel drive mechanism for in-tube micro robots
CHEN Yangzhi, XING Guangquan, PENG Xuefei, LIU Wenguang, YAO Huaping
Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1, Pages 94-98 doi: 10.1007/s11465-007-0016-8
Keywords: limited conventional transmission maximal transmission upright calculation
Title Author Date Type Operation
An investigation into the vibration of harmonic drive systems
M. Masoumi, H. Alimohammadi
Journal Article
Meshing stiffness property and meshing status simulation of harmonic drive under transmission loading
Journal Article
Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm
Zeyu Wu, Zhe Chen, Lin Peng
Journal Article
Electromagnetic interference modeling and suppression techniques in variable-frequency drive systems
Le YANG, Shuo WANG, Jianghua FENG
Journal Article
Power control of dual-motor electric drive for tracked vehicles
Yuan ZOU, Chengning ZHANG, Fengchun SUN, Jingbo WU,
Journal Article
Effects of elastic support on the dynamic behaviors of the wind turbine drive train
Shuaishuai WANG, Caichao ZHU, Chaosheng SONG, Huali HAN
Journal Article
Design and analysis of a new high frequency double-servo direct drive rotary valve
Muzhi ZHU,Shengdun ZHAO,Jingxiang LI
Journal Article
Dynamic analysis of composite beam subjected to harmonic moving load based on the third-order shear deformation
Mohammad Javad REZVANIL, Mohammad Hossein KARGARNOVIN, Davood YOUNESIAN
Journal Article
Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator
Xueping PAN, Ping JU, Feng WU, Yuqing JIN
Journal Article
Effect of harmonic distortion on electric energy meters of different metrological principles
Illia DIAHOVCHENKO, Vitalii VOLOKHIN, Victoria KUROCHKINA, Michal ŠPES, Michal KOSTEREC
Journal Article
CRITICAL PROCESSES AND MAJOR FACTORS THAT DRIVE NITROGEN TRANSPORT FROM FARMLAND TO SURFACE WATER BODIES
Journal Article
System construction of a four-side primary permanent-magnet linear motor drive mechanical press
Jintao LIANG, Zhengfeng MING, Peida LI
Journal Article