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Korean devil posts |
pdf 467K |
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The physics of an axial coil gun |
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Part I - Fundamentals |
pdf 1,256K |
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Part II - Circuit analysis |
pdf 2,186K |
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Part III - Spatial distribution of the force field |
pdf 1,350K |
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Part IV - Designing a better current waveform |
pdf 1,039K |
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Part V - The effect of a bigger slug and an initial speed |
pdf 597K |
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Addendum 1 - The current-carrying capacity of copper wire |
pdf 318K |
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Addendum 2 - The optimal shape for the coil |
pdf 981K |
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The axial coil gun -- A new approach using FEMM |
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Using FEMM to analyze a coil from a coil gun |
pdf 259K |
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.2 |
Automating the FEMM-analysis of a coil |
pdf 259K |
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.3 |
Using FEMM to integrate the circuit equations when the slug is fixed in place |
pdf 1,662K |
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.4 |
Using FEMM to simulate the firing of a coil gun |
pdf 976K |
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A triggering circuit for the high-power SCR in a coil gun |
pdf 2,217K |
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Triggering and measurement circuits needed to fire a coil gun |
pdf 545K |
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A multiple coil induction coil gun |
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.1 |
Using FEMM to design an induction coil gun |
pdf 1,373K |
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Selecting barrel coils for an induction coil gun |
pdf 609K |
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Placing bypass diodes across the capacitors |
pdf 1,063K |
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Ballistics of heavy guns |
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.1 |
Interior ballistics of a large naval gun or artillery piece |
pdf 2,823K |
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Interior ballistics: The effect of holes in the web |
pdf 1,326K |
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.3 |
Formulae and code for the U.S. Standard Atmosphere (1976) |
pdf 587K |
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Exterior ballistics of a supersonic sphere |
pdf 2,033K |
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A Visual Basic program for dissecting binary files |
pdf 692K |
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How to copy Microchip Assembly code into a Word document |
pdf 410K |
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A switching network (PBX) for four ATMs which share telephone lines |
pdf 1,958K |
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Structural analysis of a delta kite |
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The basic equilateral delta kite |
pdf 1,428K |
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.2 |
Tangential and normal movement with adaptive damping |
pdf 1,219K |
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.3 |
Shape-independent point movements |
pdf 1,759K |
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Adding a trailing edge wire |
pdf 837K |
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The force on a cylindrical steel slug inside a finite solenoid |
pdf 2,793K |
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Calculating the inductance of an arbitrary air-core inductor using the energy method |
pdf 1,887K |
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A homebrew two-telephone intercom system |
pdf 790K |
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Interfacing homebrew hardware with the parallel port on a Windows PC |
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Description |
pdf 432K |
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HostProgram |
pdf 144K |
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PICProgram |
pdf 2,078K |
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Out() and Inp() drivers |
zip 66K |
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The Joukowski airfoil in potential flow, without complex numbers |
pdf 4,203K |
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Korean devil posts |
pdf 467K |
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Design of a high-altitude kite |
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A flexible membrane kite section at high and low altitudes |
pdf 3,694K |
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A flexible membrane kite section at various angles of attack |
pdf 1,817K |
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.3 |
A flexible membrane kite section at various wind speeds |
pdf 264K |
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.4 |
De-rating the 2D kite section for a finite span |
pdf 1,036K |
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The question of winglets for a finite span kite |
pdf 412K |
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Post-war Lionel train system |
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.1 |
A set of sturdy tables for a Lionel train layout |
pdf 3,462K |
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.2 |
PIC to Host PC communication test for my post-War Lionel control system |
pdf 815K |
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PIC to PIC communication test for my post-War Lionel control system |
pdf 1,402K |
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Generalizing the Lorentz force to a region containing charge |
pdf 649K |
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A high-voltage Boost capacitor charger |
pdf 2,828K |
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A high-voltage Buck-Boost capacitor charger |
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Description and analysis |
pdf 2,778K |
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Construction |
pdf 1,484K |
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Internal combustion engines |
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.1 |
The stoichiometry of burning hydrocarbon fuels |
pdf 315K |
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The ideal gas law and a bit of thermodynamics |
pdf 747K |
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.3 |
The energy cycle of a gasoline engine |
pdf 4,548K |
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The magnetic field in and around a finite cylindrical air-core solenoid |
pdf 3,940K |
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Modeling a cylindrical permanent magnet with a surface charge of magnetic monopoles |
pdf 2,698K |
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Frequency response of a general-purpose single-sided Opamp amplifier |
pdf 1,853K |
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Aerodynamics using OpenFoam |
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.1 |
The Joukowski airfoil at different viscosities |
pdf 1,661K |
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The lift and drag acting on the tether of a high-altitude kite |
pdf 2,830K |
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.3 |
Plotting OpenFoam forces and moments in real time |
pdf 1,443K |
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Plotting OpenFoam residuals and forces in real time |
pdf 518K |
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The reduction in drag when drafting behind a tractor trailer |
pdf 2,198K |
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.6 |
Running OpenFoam cases in batch mode under the control of a python3 program |
pdf 186K |
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.7 |
The shape of a flexible membrane airfoil in a uniform two-dimensional flow |
pdf 4,127K |
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Dual adjustable 36V 3A regulated DC power supply |
pdf 2,382K |
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The solution of Problem #60 of The Open Problems Project:
Transforming irregular polygons using vertex-centroid moves |
pdf 1,604K |
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Programming Microchip 28-DIP PICs through a USB port |
pdf 1,544K |
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The Rayleigh pulse forming network |
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Part I - Analysis |
pdf 1,282K |
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Part II - Assessment of sensitivity |
pdf 1,019K |
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A complete hombrew 32-zone security system, with telephone alerts |
pdf 2,831K |
Download |
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The shape of the tether of a high-altitude kite |
pdf 1,729K |
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How to solder and breadboard surface-mount components |
pdf 676K |
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Fourier transforms |
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.1 |
A VisualBasic subroutine which calculates a fast Fourier Transform |
pdf 1,177K |
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Amplitude modulation of audio signals using the discrete-time Fourier Transform |
pdf 560K |
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A thermister-governed fan control PCB |
pdf 299K |
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The ideal transformer with a single secondary winding |
pdf 1,054K |
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The ideal transformer with two secondary windings |
pdf 467K |
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The ideal transformer with an active secondary circuit |
pdf 2,359K |
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Physics of a truck pull, using a 2WD pickup truck |
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Part I - A simplified physical model captured by a single equation |
pdf 1,757K |
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Part II - Enhancements to the dynamics of the simplified model |
pdf 3,346K |
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A homebrew two-minute alarm for roll-up door openings |
pdf 1,526K |
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A homebrew telephone Wardialer |
pdf 3,026K |
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Converting a Lincoln Hobby-Weld AC stick welder from AC to regulated DC |
pdf 2,522K |
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Physics of a stern-fixed single-blade sculling oar like a yuloh |
pdf 2,473K |
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