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* Launchloop or PowerLoop |
. 3D Motor FEM modelling? |
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| . deflection at ends . ≈ 4 kg/m, 3 cm cross section . 200 kN induction motor --- how long, how stable? . velocity transformer track: air core flat windings, diamagnetic spacing stabilization? |
JVB/KHL 2018/07/18 agenda
- KHL intro:
MSEE UCB 1974 (Josephson Logic) 1977 TMAG paper
- Integrated circuits: Tektronix, consulting, two startups
IEEE 1149.4 analog boundary scan standard
ICUBE routed early internet (failed after $e7 -> -$e7 )
- ICID ( $e6 but "shoulda" made RFID a $e10 business )
~20 papers; 1 with Rob Daasch that founded new field (300? citations)
- ~12 patents incl. foreign (dislike, but protects customers from copycat trolls)
- Married, no kids, helped wife earn MD instead
- JVB intro:
- CV and recent papers on Halbach wheels (germane to KHL research)
- Spacegrant for EM launch?
What do you wish you had time to work on?
- Launchloop ( active "hobby" 1980 to 1988 )
1985 AIAA conference paper, pubs, presentations to space advocacy groups
- Independent invention by many others since ( ie John Knapman PhD in UK )
Two research groups currently active, one with >$1M funding + 4 professionals
PowerLoop , first practical application: MWhr power storage (can scale beyond TWhr)
- Questions
- Practical/empirical motor design books (theory/math AND detailed measurement)
Linear induction motor - conservative maximum thrust/m2
- Inductrack - estimate ultrahigh speed drag/lift ratio (skin effect)
Power = radians × ρ × v³ / LD ( LD must be >> 1e5 )
- predictive/adaptive control instead, loop gain, computation, and redundancy
High inertia <- Halbach DC Motor <- Induction generator
- Stability: can inertia synchronize generator?
- 3D Motor FEM modelling?
- Bolt/Rotor design
- deflection at ends
- ≈ 4 kg/m, 3 cm cross section
- 200 kN induction motor --- how long, how stable?
- velocity transformer track: air core flat windings, diamagnetic spacing stabilization?