Piezomechatronic-based systems in aircraft, space, and defense applications

Maillard, T.; Claeyssen, F.; LeLetty, R.; Sosnicki, Olivier; Pages, Alexandre; Carazo, Alfredo Vázquez

doi:10.1117/12.819015

Cited by 15 publications

(14 citation statements)

References 6 publications

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“…In addition, insofar there is no contact between the moving parts, lubrication is not required. Superconducting Magnetic Bearings (SMBs) find application in many fields where lack of contact is a requirement or an advantage such as in flywheel systems and transportation [18], cryogenic turbine flow meters, cryocoolers and sensitive gyroscopes for space applications among other applications for cryogenic and space mechanisms [19][20][21][22][23][24][25]. Recently, it has been explored different shapes, sizes and combination of magnet-superconductor in order to obtain stable levitation positions [26][27][28][29][30][31].…”

Section: Superconducting Magnetic Bearingsmentioning

confidence: 99%

Contactless Mechanical Components: Gears, Torque Limiters and Bearings

et al. 2014

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Contactless mechanical components are mechanical sets for conversion of torque/speed, whose gears and moving parts do not touch each other, but rather they provide movement with magnets and magnetic materials that exert force from a certain distance. Magneto-mechanical transmission devices have several advantages over conventional mechanisms: no friction between rotatory elements (no power losses or heat generation by friction so increase of efficiency), no lubrication is needed (oil-free mechanisms and no lubrication auxiliary systems), reduced maintenance (no lubricant so no need of oil replacements), wider operational temperature ranges (no lubricant evaporation or freezing), overload protection (if overload occurs magnet simply slides but no teeth brake), through-wall connection (decoupling of thermal and electrical paths and OPEN ACCESSMachines 2014, 2 313 environmental isolation), larger operative speeds (more efficient operative conditions), ultralow noise and vibrations (no contact no noise generation). All these advantages permit us to foresee in the long term several common industrial applications in which including contactless technology would mean a significant breakthrough for their performance. In this work, we present three configurations of contactless mechanical passive components: magnetic gears, magnetic torque limiters and superconducting magnetic bearings. We summarize the main characteristic and range of applications for each type; we show experimental results of the most recent developments showing their performance.

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Section: Superconducting Magnetic Bearingsmentioning

confidence: 99%

Contactless Mechanical Components: Gears, Torque Limiters and Bearings

et al. 2014

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“…Superconducting magnetic bearings (SMB) are used in applications such as in flywheels [1] or Maglev devices among other devices [2][3][4][5][6][7]. The lack of contact, the extremely low friction and energy losses and the absence of wear are some of the outstanding characteristics that make this kind of bearings interesting for the mechanical engineer [8].…”

Section: Introductionmentioning

confidence: 99%

Mechanical characterization of journal superconducting magnetic bearings: stiffness, hysteresis and force relaxation

Cristache

Valiente–Blanco

Díez-Jiménez

et al. 2014

J. Phys.: Conf. Ser.

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“…The aim of the athermal LFA design is to obtain a wavelength thermal drift close to 0 pm/°C by achieving the compensation of the first term by the second one in equation (3). Solving this equation has led to the final design where a global negative thermal expansion coefficient has been achieved due to a specific assembly of aluminium, titanium, Zerodur ® (zero expansion glass-ceramic) pieces and a piezoelectric actuator.…”

Section: A Global Laser Architecturementioning

confidence: 99%

“…Solving this equation has led to the final design where a global negative thermal expansion coefficient has been achieved due to a specific assembly of aluminium, titanium, Zerodur ® (zero expansion glass-ceramic) pieces and a piezoelectric actuator. The role of the piezoelectric actuator (made by the CEDRAT Group) [3] is to modulate and to allow a fine tuning of the laser wavelength around the 4 He D 0 transition. A picture of the final LFA design is given in Fig.…”

Section: A Global Laser Architecturementioning

confidence: 99%