Design of a high speed linear motor driven gantry table

Widdowson, G.P.; Liao, Youyong; Gaunekar, A.S.; Kuah, T.H.; Srikanth, N. V.

doi:10.1109/pedes.1998.1330727

Cited by 10 publications

(4 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To enable the linear motion most often rolling elements [7] or pressurized bearings are used [17,18]. For performance considerations iron-core motors are often used, but they can cause excessive loading and premature failure of rolling elements (Fig.…”

Section: Bearing Failuresmentioning

confidence: 99%

See 1 more Smart Citation

Bearing lifetime of linear PM machines

Paulides

Janssen

Lomonova

2009

2009 IEEE Energy Conversion Congress and Exposition

View full text Add to dashboard Cite

--With the ever advancement and increased force density of slotted brushless linear permanent magnet (PM) actuators the attraction forces become more dominating. In the early years this attraction force was advantageous, although that it now becomes a problem due to the reduced bearing lifetime. This lifetime is influenced by the lubrication, rolling contact fatigue, time of operation, metal selection and pre-loading. As such, the attraction force of slotted linear permanent magnet machines has to be compensated to extend the maintenance free operating time of contactless Pick-and-Place robots. This has been achieved by counteracting the attraction force with passive permanent magnets placed underneath a soft-magnetic plate. Various ways to calculate the attraction force will be explained in this paper, where it will be shown that 2D finite element analysis suffices and that implementing this passive attraction force compensation considerably extends the bearing life.

show abstract

Section: Bearing Failuresmentioning

confidence: 99%

“…Further, high accuracies at fast movements can be achieved, which results in consistent and repeatable performances, e.g in manufacturing automation [6]. Here robot manipulators for the pick-and-place (P&P) and assembly tasks require both accurate positioning and high speed motion [7].…”

Section: Introductionmentioning

confidence: 99%

Bearing lifetime of linear PM machines

Paulides

Janssen

Lomonova

2009

2009 IEEE Energy Conversion Congress and Exposition

View full text Add to dashboard Cite

show abstract

“…Since it can have a synchronization error, i.e. the two axes can have different positions, the joints between parallel axes and the beam are elastic [1,2]. A moving head slides along the beam (y direction) and can also move along the z direction.…”

Section: Introductionmentioning

confidence: 99%

Control of a Symmetrical Dual-Drive Gantry System Using Energetic Macroscopic Representation

Kestelyn

Gomand

Bouscayrol

et al. 2008

SSP

View full text Add to dashboard Cite

Dual-drive gantry systems are commonly used in many industrial applications. However, as few papers are available in the literature, this kind of system is difficult to broach. Based on an energetic approach so-called Energetic Macroscopic Representation (EMR), this paper presents a graphical modelling based on lumped-parameters. The initial drive is decomposed into a set of decoupled fictitious systems using a mathematical transformation. Since the modelling respects the integral causality, inversion-based controls are thus deduced. More generally, this approach proposes a way to analyze and deduce models and controls of multi-drive mechatronic systems.

show abstract

“…These structures permit to achieve very high performances (power to weight ratio, high dynamics) [2]. The PMLSM's are often used as components for high-speed positioning systems, such as "Pick & Place" applications with a Gantry system [3]. Most of the time, the typical duty cycle uses high accelerations during short times, according to the energetic limitation induced by the I²t value of the actuator.…”

Section: Introductionmentioning

confidence: 99%

Impact of permanent magnet field on inductance variation of a PMLSM

Gomand

Remy

Tounzi

et al. 2007

2007 European Conference on Power Electronics and Applications

View full text Add to dashboard Cite

Analytical models of Surface Mounted Permanent Magnet Linear Synchronous Motors are generally presented with constant inductances. However, the impact of powerful rare-earth PMs in the saturation phenomena cannot be neglected anymore. In this paper, a new non-linear model of PMLSM inductances is suggested. This model is defined as a function of the current value as well as of the magnet position. So, an analytical study, a finite-element analysis and experimental results are presented and confronted.

show abstract

Design of a high speed linear motor driven gantry table

Cited by 10 publications

References 1 publication

Bearing lifetime of linear PM machines

Bearing lifetime of linear PM machines

Control of a Symmetrical Dual-Drive Gantry System Using Energetic Macroscopic Representation

Impact of permanent magnet field on inductance variation of a PMLSM

Contact Info

Product

Resources

About