| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 3A60.00 | Driven Mechanical Resonance | | |
| 3A60.10 | Tacoma Narrows film | PIRA 200 | A film of the collapse of the bridge due to resonance. |
| 3A60.10 | Tacoma Narrows film/videodisc | 3A60.10 | The film loop lasts 4:40. The first eleven minutes of the video disc is excellent. |
| 3A60.11 | Tacoma Narrows | TPT 15(3),189 | On building a model of the Tacoma Narrows bridge. |
| 3A60.12 | engineering analysis of the bridge | AJP 59(2),118 | Understanding gained from full, dynamically scaled models of the bridge is fundamentally different form the explanation in most physics texts. |
| 3A60.20 | driven glider on air track | PIRA 500 | |
| 3A60.20 | driven glider on air track | 3A60.20 | A cart is placed between two long springs driven by a variable speed motor. |
| 3A60.20 | driven glider on air track | 11-1.9 | Drive an air glider between two springs. |
| 3A60.24 | driven cart between springs | AJP 31(12),xiii | A PSSC cart is driven by a ratio motor between two springs. Use eddy current damping. |
| 3A60.24 | driven cart between springs | 15-10.14 | A more complex driven cart between two springs with eddy current damping and recording. Construction details p. 549. |
| 3A60.24 | driven cart between springs | 15-10.8 | A cart between stretched rubber bands is driven by an eccentric on a variable speed motor. Eddy Current damping. |
| 3A60.25 | driven glider on air track | TPT 20(4),257 | A driven air track cart has an adjustable vane in a tank of water. Graphs of amplitude with varying damping are generated the old fashioned way. |
| 3A60.30 | Barton's pendula | PIRA 500 | |
| 3A60.30 | Barton's pendula | 3A60.30 | A set of pendula of increasing length are driven in common at varying frequencies. |
| 3A60.30 | Barton's pendula | TPT 12(3),178 | A simple implementation of Barton's pendula. |
| 3A60.30 | Barton's pendula | Sd-1 | Several pendula of graduated length are hung from the same driven support. |
| 3A60.30 | Barton's pendula | S-20 | Many of different length small pendula are hung from a rod driven by an adjustable heavy pendulum. |
| 3A60.31 | resonant driven pendula | PIRA 1000 | |
| 3A60.31 | resonant driven pendula | Disc 09-02 | A massive pendulum drives three different length bifilar pendula. |
| 3A60.35 | bowling ball pendulm resonance | PIRA 1000 | |
| 3A60.35 | torsion resonance | TPT 21(5),333 | Driving a torsion pendulum with a jigsaw. |
| 3A60.35 | torsion resonance | 11-2.3i | An air bearing supported disc/large clock spring arrangement is variably driven. Also vary damping, mass. |
| 3A60.35 | bowling ball pendulum resonance | Disc 09-01 | Strike a bowling ball pendulum with random blows, then with blows at the normal frequency. |
| 3A60.36 | impulse driven torsional oscillator | AJP 30(2),115 | Apparatus Drawings Project No. 23: Plans for a simple impulse driven torsion pendulum with a natural period of 2 sec. |
| 3A60.37 | driven torsional oscillator | 15-10.9 | Upper and lower discs are connected by an axial wire. The upper is driven in SHM and the resulting motion of the lower is studied. |
| 3A60.40 | driven mass on spring | PIRA 1000 | |
| 3A60.40 | driven spring | 15-10.11 | A small DC motor with an eccentric on the shaft is suspended from a spring and run up through the various resonances. |
| 3A60.40 | driven mass on a spring | S-13 | The vibrator in S-9 is used to drive a vertical mass on a spring to show phase differences above and below resonance. |
| 3A60.41 | mechanical analog of electrical res. | A-22 | A driven system of a mass hanging between two springs. |
| 3A60.42 | driven resonance tracer | Mx-8 | A driven mass between two springs carries a felt tip marker that traces on graph paper pulled at a steady rate. |
| 3A60.43 | driven spring weight | PIRA 1000 | |
| 3A60.43 | driven spring weight | Disc 09-03 | Drive a mass hanging from a spring. |
| 3A60.44 | drunken sailor | PIRA 1000 | |
| 3A60.44 | drunken sailor | 3A60.44 | A hollow toy "Donald Duck" is driven between two vertical springs. Enough "wine" is poured in to reach resonance and then enough "coffee" is poured in to overshoot resonance. |
| 3A60.44 | drunken sailor | Mx-5 | A bottle (sailor) between two springs is driven at resonance when half full of water. Start empty, add wine to half full, fill with coffee to sober him up. |
| 3A60.45 | hand driven rubber tube | 15-10.1 | Longitudinal oscillations are induced by hand on a long rubber tube with a wood block attached in the middle. |
| 3A60.46 | spring driven spring on a spring | 15-10.7 | A large spring and adjustable mass on a lever arm drives a small mass on a spring with provisions for damping. |
| 3A60.47 | driven mass on spring | AJP 28(6),534 | Apparatus Drawings Project No.8: A vertical mass on a spring with a variable frequency driver and adjustable damping. |
| 3A60.48 | driven mass spring apparatus | AJP 56(4),352 | Optical transmission wedges are used to measure positions of both sides of the spring. |
| 3A60.48 | electromagnetically driven apparatus | AJP 55(12),1126 | A magnet hanging on a spring oscillates in a tube with several windings, one serves as a pickup to an oscilloscope, another as a driver, others as means of introducing damping forces. |
| 3A60.48 | electromechanical shaker/acceleromet | AJP 53(3),278 | A small accelerometer is placed on a mass driven by a commercial electromagnetic shaker. |
| 3A60.50 | resonance reeds | PIRA 500 | |
| 3A60.50 | resonance reeds | 3A60.50 | |
| 3A60.50 | resonance reeds | Mx-13 | A set of steel reeds is mounted on a common excited strip. |
| 3A60.50 | resonance reeds | 15-10.4 | A large scale resonance reed set is driven by a motor. |
| 3A60.50 | resonance reeds | S-15 | A set of resonance reeds is mounted on a slightly unbalanced gyrowheel. |
| 3A60.50 | resonance reeds | S-4a.2 | A set of resonance reeds is mounted on a out of balance gyroscope. |
| 3A60.50 | reed tachometer | Disc 09-05 | A set of reeds is attached to a small unbalanced gyro. |
| 3A60.51 | resonance reeds | 15-10.3 | A steel bar has pairs of inverted pendula attached along its length. Vibrating a particular rod will cause its mate to vibrate but not the others of different length. |
| 3A60.53 | resonance reeds | 15-10.5 | A vacuum cleaner motor with an eccentric mass is clamped to a long steel strip hanging over the edge of the lecture bench. |
| 3A60.55 | driven torsion pendulum | PIRA 1000 | |
| 3A60.56 | galvanometer movement resonance | AJP 56(9),839 | A galvanometer movement (observed by reflected laser beam) driven by a slow function generator (observed on an oscilloscope) shows both driving and driven motions. |
| 3A60.56 | galvanometer movement oscillations | AJP 45(11),1113 | Record the motion of the galvanometer movement by modulating the radial magnetic field at a frequency beyond the response of the movement and detecting the induced current. |
| 3A60.57 | galvanometer movement oscillations | AJP 43(10),926 | Drive a wall mount galvanometer (period 20 sec.) with a low frequency signal generator. |
| 3A60.58 | water dropper resonance | S-16 | The frequency of drops striking a bar clamped at one end is adjusted so that they match the natural frequency of a bar. |
| 3A60.60 | upside-down pendulum | PIRA 1000 | |
| 3A60.60 | upside-down pendulum | 3A60.60 | Same as Mz-9. |
| 3A60.60 | upside-down pendulum | Mz-9 | A variable speed motor provides vertical undulatory motion for a vertical rod with an adjustable mass. |
| 3A60.61 | inverted pendulum - portable jigsaw | AJP 53(11),1079 | Strobe pictures along with some theory of an inverted pendulum driven with a portable jigsaw. |
| 3A60.61 | inverted pendulum - sabre saw | AJP 37(9),941 | Mount a short stick on the blade of an inverted saber saw. |
| 3A60.62 | inverted pendulum - liquid | AJP 59(9),816 | Demonstration and theory of an inverted liquid pendulum. |
| 3A60.63 | inverted pendulum - an analog | AJP 50(10),924 | The inverted pendulum is presented as an analog of the quadrupole mass filter. Theory of the inverted pendulum is discussed. |
| 3A60.64 | inverted pendulum - speaker driven | AJP 38(7),874 | The inverted pendulum is analyzed using a series of short impulses instead of sinusoidal excitation. A large loudspeaker with a 3/4" movement is used to drive simple and compound inverted pendula. |
| 3A60.67 | upside-down pendulum | 15-10.2 | A massive (20 lb.) weight is bolted to an upright leaf spring from an auto and exited by a thread. |
| 3A60.70 | lamppost resonance | PIRA 1000 | |
| 3A60.70 | lampost resonance | AJP 52(7),662 | A three meter steel rod model of a lampost weighted at the top is easily resonated by hand until a bolt in the support platform breaks. |
| 3A60.75 | driven conical pendulum | S-14 | A variable length conical pendulum is driven at a single frequency and the phase is compared to a reference. |
| 3A60.80 | Calthrop resonance pendulum | 15-10.10 | Drive a heavy compound pendulum which in turn drives a light simple pendulum. |
| 3A60.81 | Rayleigh's dirven pendulum | S-21 | Lord Rayleigh's method of suspending a light pendulum from a heavy driving pendulum. |
| 3A60.85 | pendulum in a dish ???? | S-140 | This is a model of aeolian sounds. Read it yourself. |
| 3A60.89 | paddleball - non SHM | TPT 28(6),417 | A paddleball is a non-SHM system that can be used to demonstrate resonance. |
| 3A60.90 | mechaincal vibrator | S-9 | A SHM driver can be made from a old truck flywheel on bearings attached to a crank. |
| 3A60.91 | mechanical vibrator | S-10 | Commercial motor driven mechanical vibrators are available. |
| 3A60.92 | mechanical vibrator | S-11 | A heavy pendulum on a knife edge can be used to generate horizontal motion of periods from 1 to 10 seconds. |
| 3A60.93 | mechanical vibrator | S-12 | A vibrator of fixed period is made from a clock motor. |
| 3A60.94 | Macalaster-PSSC oscillator | S-4e | An apparatus for many demonstrations in mechanical resonance. |