Determination of load capacity for magnetic leadscrew drives

Z. Ji; T. N. Chang; M. Shimanovich; R. J. Caudill

doi:10.1109/20.908390

Determination of load capacity for magnetic leadscrew drives

Z. Ji, T. N. Chang, M. Shimanovich, R. J. Caudill

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

Magnetically coupled leadscrews can have finer pitch than can other types of leadscrews, because the threads of the nut and the shaft are not meshed into each other. This feature can lead to better precision for motion control. To achieve contactless coupling, this type of drive uses aerostatic suspension between the nut and the shaft of the magnetically coupled leadscrew. Determination of load capacity for such drives is discussed in this study. Boundary conditions for the air gap are derived and used to solve the corresponding Laplace equation. The result is then used to calculate air gap permeance and obtain the operating point of the magnet. Finally, relationships between load and design parameters are established for preliminary selection of component dimensions and material properties.

Original language	English (US)
Pages (from-to)	3824-3832
Number of pages	9
Journal	IEEE Transactions on Magnetics
Volume	36
Issue number	5 II
DOIs	https://doi.org/10.1109/20.908390
State	Published - Sep 2000
Event	2000 International Magnetics Conference (INTERMAG 2000) - Toronto, Ont, Canada Duration: Apr 9 2000 → Apr 12 2000

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Keywords

Computation of magnetic field
Contactless drive
Magnetic force calculation
Magnetic leadscrew

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10.1109/20.908390

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title = "Determination of load capacity for magnetic leadscrew drives",

abstract = "Magnetically coupled leadscrews can have finer pitch than can other types of leadscrews, because the threads of the nut and the shaft are not meshed into each other. This feature can lead to better precision for motion control. To achieve contactless coupling, this type of drive uses aerostatic suspension between the nut and the shaft of the magnetically coupled leadscrew. Determination of load capacity for such drives is discussed in this study. Boundary conditions for the air gap are derived and used to solve the corresponding Laplace equation. The result is then used to calculate air gap permeance and obtain the operating point of the magnet. Finally, relationships between load and design parameters are established for preliminary selection of component dimensions and material properties.",

keywords = "Computation of magnetic field, Contactless drive, Magnetic force calculation, Magnetic leadscrew",

author = "Z. Ji and Chang, {T. N.} and M. Shimanovich and Caudill, {R. J.}",

note = "Funding Information: Manuscript received October 18, 1999; revised April 10, 2000. This work was supported in part by the NIST, through the Optoelectronics Assembly Consortium, and by the New Jersey Commission for Science and Technology, through the Multi-lifecycle Engineering Research Center at NJIT.; 2000 International Magnetics Conference (INTERMAG 2000) ; Conference date: 09-04-2000 Through 12-04-2000",

year = "2000",

month = sep,

doi = "10.1109/20.908390",

language = "English (US)",

volume = "36",

pages = "3824--3832",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "5 II",

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TY - JOUR

T1 - Determination of load capacity for magnetic leadscrew drives

AU - Ji, Z.

AU - Chang, T. N.

AU - Shimanovich, M.

AU - Caudill, R. J.

N1 - Funding Information: Manuscript received October 18, 1999; revised April 10, 2000. This work was supported in part by the NIST, through the Optoelectronics Assembly Consortium, and by the New Jersey Commission for Science and Technology, through the Multi-lifecycle Engineering Research Center at NJIT.

PY - 2000/9

Y1 - 2000/9

N2 - Magnetically coupled leadscrews can have finer pitch than can other types of leadscrews, because the threads of the nut and the shaft are not meshed into each other. This feature can lead to better precision for motion control. To achieve contactless coupling, this type of drive uses aerostatic suspension between the nut and the shaft of the magnetically coupled leadscrew. Determination of load capacity for such drives is discussed in this study. Boundary conditions for the air gap are derived and used to solve the corresponding Laplace equation. The result is then used to calculate air gap permeance and obtain the operating point of the magnet. Finally, relationships between load and design parameters are established for preliminary selection of component dimensions and material properties.

AB - Magnetically coupled leadscrews can have finer pitch than can other types of leadscrews, because the threads of the nut and the shaft are not meshed into each other. This feature can lead to better precision for motion control. To achieve contactless coupling, this type of drive uses aerostatic suspension between the nut and the shaft of the magnetically coupled leadscrew. Determination of load capacity for such drives is discussed in this study. Boundary conditions for the air gap are derived and used to solve the corresponding Laplace equation. The result is then used to calculate air gap permeance and obtain the operating point of the magnet. Finally, relationships between load and design parameters are established for preliminary selection of component dimensions and material properties.

KW - Computation of magnetic field

KW - Contactless drive

KW - Magnetic force calculation

KW - Magnetic leadscrew

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U2 - 10.1109/20.908390

DO - 10.1109/20.908390

M3 - Conference article

AN - SCOPUS:0034260644

SN - 0018-9464

VL - 36

SP - 3824

EP - 3832

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5 II

T2 - 2000 International Magnetics Conference (INTERMAG 2000)

Y2 - 9 April 2000 through 12 April 2000

ER -

Determination of load capacity for magnetic leadscrew drives

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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