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| . Independent invention by many others since ( ie [[ spacecable.org | John Knapman PhD in UK ]]) | . Independent invention by many others since ( ie [[ http://spacecable.org | John Knapman PhD in UK ]]) |
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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)
Open source software: BSD Y2K patch, Dirvish backup software
- 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, completing work now
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 N/m2 ← Rotary torque / ( 2 π w r² )
- Inductrack - estimate ultrahigh speed drag/lift ratio (skin effect)
Power = radians × ρ × v³ / LD ( LD must be >> 1e5 )
- predictive/adaptive electronic control instead: global stability, 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?
- JVB PSU research:
- what help do you need?
- would older Tektronix test equipment help you or students?