The dangerous high-frequency oscillation of a structure owing to the interaction of aerodynamic and aeroelastic forces. If allowed to develop it can tear an airframe apart.
A rapid, periodic variation, in tape speed caused by uneven tension between the tape reels.
1) High-frequency pitch variations in program material due to speed fluctuations in a recorder or playback unit. Often expressed as "wow and flutter".
Wavering of the pitch of music (as if you were shaking a singer) due to uneven speed of a tape or record as it plays.
High frequency oscillation caused by interaction of aeroelastic and aerodynamic
A self induced oscillating motion of improperly designed or balanced rotor blades.
The rapid, ineffective contractions of any heart chamber. A flutter is considered to be more coordinated than fibrillation.
Also known as "Harmonic Ressonance". Phenomenon that happens when the natural vibration frequencies of two or more components add to one another, causing a continous increase in vibration amplitude, which could destroy an airframe. The most common type of flutter found on R/C aircraft is Control Surface Flutter, which usually generates a flapping sound and can cause damage to a servo quickly. Flutter problems can be correted by changing any parameter of the frequency equation and it could be as easy as decreasing flight speed, or if a permanent solution is desired by changing the control linkage mechanism. Report this Word See also: Yard sale Added by: FalconWings
Very short rapid variations in tape speed which may result in a jumpy or jittery picture.
Rapid speed instability on tape or vinyl leading to fluctuations in pitch. This is caused by transport problems.
abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block
the motion made by flapping up and down
beat rapidly; "His heart palpitated"
Variations in audio pitch caused by rapid changes in the speed of a sound tape or film.
Unwanted variation in the speed of a turntable or tape recorder. Slow flutter, or 'wow,' causes musical sound to waver in pitch.
Acoustical: a rapid succession of reflected sounds occurring between two parallel surfaces, normally stimulated by a transient sound such as a hand clap. Electronic: in recording media, especially analog tape, a periodic variation in pitch caused by uneven motion of the tape.
Very rapid, regular beating of a heart chamber.
Rapid oscillation of a wing or control surface. Usually appears only at high speed and is often caused by excessive gaps between wing and control surface, or by inadequately stiff control rods, or in the case of a wing insufficiently stiff structure.
unsteadiness in tape speed which causes sound to 'gurgle'.
A condition in which the contractions in the upper or lower chambers of the heart become extremely rapid (but regular). A patient may or may not feel the flutter.
A rapid but regular rhythm (250 to 350 bpm in the atria or 200 to 300 bpm in the ventricles) often seen on the ECG as a saw-toothed pattern. Ventricular flutter may result in death unless corrected in minutes.
variation from exact speed, normally found in analog recording and playback devices. Called "wow" when the variations are slow, flutter is not a problem with digital record-playback Systems, because their outputs are controlled by internal clock mechanisms. See also Wow.
Flutter is a rapid vibration or pulsation. The difference between flutter and fibrillation is that flutter is well organized while fibrillation is not. See the entire definition of Flutter
A fast, periodic variation in a tape transport's speed.... ( more)
A phenomenon whereby the elevator or aileron control surface begins to oscillate violently in flight. This can sometimes cause the surface to break away from the aircraft and cause a crash. There are many reasons for this, but the most common are excessive hinge gap or excessive "slop" in the pushrod connections and control horns. If you ever hear a low-pitched buzzing sound, reduce throttle and land immediately.
Rapid oscillations of flying control surfaces in flight due to either excessive gaps between hinged surfaces or excess play in the linkages between control horns and the servo. Likely to end in a crash.
In sound, rapid period variation of frequency caused by unsteadiness of the film or tape drive.
Small rapid variation in tape speed, causing pitch variation. They are often due to a faulty tape transport or turntable mechanism.
Self-induced harmonic motion. A self-excited aerodynamic instability that can grow to very large amplitudes of vibrations.
Bouncing or vibrating movement of a sensing target.
Flutter: In electronics, rapid variation of signal parameters, such as amplitude, phase, and frequency. In structures, rapid periodic motion caused by interaction of structural mass, stiffness, and aerodynamic forces.