High stiffness fixation and thermal insulation in a superconducting planar motor (2024)

@inproceedings{7c83a6d9b8ce4fd79ee6e6f9926418f1,

title = "High stiffness fixation and thermal insulation in a superconducting planar motor",

abstract = "A superconducting planar motor is being investigated to provide higher acceleration potential compared to existing planar motors. Currently used permanent magnets are replaced by superconducting electromagnets, at a temperature below 20 K, providing a higher magnetic field density. Fixation of superconductors is a challenge due to the requirements on stiffness and thermal conductivity, which are conflicting in existing fixation designs. In contrast, an electromagnetic position actuator in closed loop control provides stiffness without a path for thermal conduction. The radiative heat flow through such an actuator is analyzed. Furthermore, a thin thermal insulation is required to achieve a high magnetic field density at the location of the warm motor coils. Two insulation concepts are analyzed and compared based on the remaining heat flow. First order heat transfer equations are solved and the results show the potential of the solutions proposed. Further work entails detailed design and experimental verification.",

keywords = "Cryogenic support, High stiffness, Low heat load, Thin thermal insulation, Vacuum insulation",

author = "H.B. Koolmees and J.P.M.B. Vermeulen",

year = "2018",

month = jan,

day = "1",

language = "English",

isbn = "9780995775121",

pages = "191--192",

editor = "O. Riemer and Enrico Savio and D. Billington and Leach, {R. K.} and D. Phillips",

booktitle = "European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 18th International Conference and Exhibition, EUSPEN 2018",

publisher = "European Society for Precision Engineering and Nanotechnology",

note = "18th International Conference of the European Society for Precision Engineering and Nanotechnology, (EUSPEN 2018), EUSPEN2018 ; Conference date: 04-06-2018 Through 08-06-2018",

url = "https://www.euspen.eu/events/18th-international-conference-exhibition-4th-8th-june-2018-2-2-2/",

}

High stiffness fixation and thermal insulation in a superconducting planar motor. / Koolmees, H.B.; Vermeulen, J.P.M.B.
European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 18th International Conference and Exhibition, EUSPEN 2018. ed. / O. Riemer; Enrico Savio; D. Billington; R. K. Leach; D. Phillips. European Society for Precision Engineering and Nanotechnology, 2018. p. 191-192.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - High stiffness fixation and thermal insulation in a superconducting planar motor

AU - Koolmees, H.B.

AU - Vermeulen, J.P.M.B.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - A superconducting planar motor is being investigated to provide higher acceleration potential compared to existing planar motors. Currently used permanent magnets are replaced by superconducting electromagnets, at a temperature below 20 K, providing a higher magnetic field density. Fixation of superconductors is a challenge due to the requirements on stiffness and thermal conductivity, which are conflicting in existing fixation designs. In contrast, an electromagnetic position actuator in closed loop control provides stiffness without a path for thermal conduction. The radiative heat flow through such an actuator is analyzed. Furthermore, a thin thermal insulation is required to achieve a high magnetic field density at the location of the warm motor coils. Two insulation concepts are analyzed and compared based on the remaining heat flow. First order heat transfer equations are solved and the results show the potential of the solutions proposed. Further work entails detailed design and experimental verification.

AB - A superconducting planar motor is being investigated to provide higher acceleration potential compared to existing planar motors. Currently used permanent magnets are replaced by superconducting electromagnets, at a temperature below 20 K, providing a higher magnetic field density. Fixation of superconductors is a challenge due to the requirements on stiffness and thermal conductivity, which are conflicting in existing fixation designs. In contrast, an electromagnetic position actuator in closed loop control provides stiffness without a path for thermal conduction. The radiative heat flow through such an actuator is analyzed. Furthermore, a thin thermal insulation is required to achieve a high magnetic field density at the location of the warm motor coils. Two insulation concepts are analyzed and compared based on the remaining heat flow. First order heat transfer equations are solved and the results show the potential of the solutions proposed. Further work entails detailed design and experimental verification.

KW - Cryogenic support

KW - High stiffness

KW - Low heat load

KW - Thin thermal insulation

KW - Vacuum insulation

UR - http://www.scopus.com/inward/record.url?scp=85054526327&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85054526327

SN - 9780995775121

SP - 191

EP - 192

BT - European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 18th International Conference and Exhibition, EUSPEN 2018

A2 - Riemer, O.

A2 - Savio, Enrico

A2 - Billington, D.

A2 - Leach, R. K.

A2 - Phillips, D.

PB - European Society for Precision Engineering and Nanotechnology

T2 - 18th International Conference of the European Society for Precision Engineering and Nanotechnology, (EUSPEN 2018)

Y2 - 4 June 2018 through 8 June 2018

ER -