periodic motion

Motion that is repeated in equal intervals of time. The time of each interval is the period. Examples of periodic motion include a rocking chair, a bouncing ball, a vibrating guitar string, a swinging pendulum, and a water wave. See also simple harmonic motion.

periodic motion [¦pir·ē¦äd·ik ′mō·shən]

(mechanics)

Any motion that repeats itself identically at regular intervals.

Periodic motion

Any motion that repeats itself identically at regular intervals. If x(t) represents the displacement of any coordinate of the system at time t, a periodic motion has the property defined by the equation below for every value of

the variable time t. The fixed time interval T between repetitions, or the duration of a cycle, is known as the period of the motion.

The motion of the escapement mechanism of a watch, the motion of the Earth about the Sun, and the more complicated motion of the crankshaft, piston rods, and pistons in an engine running at uniform speed are all examples of periodic motion.

The vibration of a piano string after it is struck is a damped periodic motion, not strictly periodic according to the definition. Although the motion very nearly repeats itself, and with a fixed repetition time, each successive cycle has a slightly smaller amplitude. See Damping, Harmonic motion, Vibration, Wave motion

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No references found	This type of paper shredders have a series of parallel serrated blades mounted on a steel frame and cut the paper sequentially in a periodic motion as the paper moves on the rollers inside the paper shredder. Types of Paper Shredders and How They Work by Sam Natarajan / Computers and Internet community RESULTS Experimental Observations of the Particle Motion Behind the Advancing Free Surface As the viscoelastic fluid fills the tube, the glass sphere undergoes a periodic motion behind the advancing free surface (Fig. Particle motion in the fountain flow region during filling of a tube ... by Kolli, Venkata Giri; Ogadhoh, Shem O.; Abel, Steve M.; Gadala-Maria, Francis; Papathanasiou, Thanasi / Polymer Engineering and Science Taking advantage of a chaotic system's extreme sensitivity to initial conditions, they use a series of tiny, judiciously chosen and carefully applied perturbations to maneuver its behavior into the type of periodic motion desired. Achieving control of chaos at high speeds by Peterson, Ivars / Science News	Period of Revolution period of vibration period parallelogram Period Revival period-luminosity relation periodate periodic periodic acid Periodic Acid, HIO4 periodic antenna periodic attractor periodic continued fraction periodic current periodic damping periodic decimal periodic discing periodic disease periodic duty periodic field focusing Periodic Function periodic group periodic kiln periodic lattice Periodic Law periodic line periodic motion periodic peritonitis periodic perturbation Periodic Psychosis periodic quantity Periodic Sentence Periodic Solutions periodic spring Periodic Structure Periodic System of Elements periodic table Periodic Table of the Elements: Actinium Periodic Table of the Elements: Aluminum Periodic Table of the Elements: Americium Periodic Table of the Elements: Antimony Periodic Table of the Elements: Argon Periodic Table of the Elements: Arsenic Periodic Table of the Elements: Astatine Periodic Table of the Elements: Barium Periodic Table of the Elements: Berkelium Periodic Table of the Elements: Beryllium Periodic Table of the Elements: Bismuth Periodic Table of the Elements: Bohrium Periodic Table of the Elements: Boron Periodic Table of the Elements: Bromine Periodic Table of the Elements: Cadmium	periodic lateralized epileptiform discharge periodic lateralized epileptiform discharge periodic lattice periodic law periodic law periodic law Periodic Leg Movements while Awake Periodic limb movement Periodic limb movement Periodic limb movement disorder Periodic limb movement disorder Periodic Limb Movement Disorder and Restless Legs Syndrome Periodic Limb Movement Index Periodic Limb Movement While Waking Periodic Limb Movements in Sleep Periodic Limb Movements in Sleep periodic line Periodic Loaded Rectangular Waveguide Periodic Location Area Update Periodic Macroscopic Quantum Tunneling Periodic Maintenance Periodic Maintenance Information Card Periodic Maintenance Interval Periodic Maintenance Requirements Periodic Maintenance Requirements Manual Periodic Maintenance Schedule Periodic Mesophorous Dendrisillicus Periodic Mesoporous Silica Periodic Moment Method Periodic Monthly Statement periodic motion Periodic Motor Vehicle Inspection periodic movement periodic movement periodic movement periodic movement Periodic Multi-Year Review Periodic Multiple Description Scalar Quantization periodic myelodysplasia periodic myelodysplasia periodic myelodysplasia periodic myelodysplasia periodic neutropenia periodic neutropenia periodic neutropenia Periodic Nonharmonic Periodic Occupational Health Survey periodic ophthalmia periodic ophthalmia periodic ophthalmia periodic ophthalmia Periodic Orbit-Time Dependent Schroedinger Equation Periodic Paralyses periodic paralysis periodic paralysis periodic paralysis periodic paralysis periodic paralysis Periodic Paralysis Association periodic parasite periodic parasite

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This type of paper shredders have a series of parallel serrated blades mounted on a steel frame and cut the paper sequentially in a periodic motion as the paper moves on the rollers inside the paper shredder.

Types of Paper Shredders and How They Work by Sam Natarajan / Computers and Internet community

RESULTS Experimental Observations of the Particle Motion Behind the Advancing Free Surface As the viscoelastic fluid fills the tube, the glass sphere undergoes a periodic motion behind the advancing free surface (Fig.

Particle motion in the fountain flow region during filling of a tube ... by Kolli, Venkata Giri; Ogadhoh, Shem O.; Abel, Steve M.; Gadala-Maria, Francis; Papathanasiou, Thanasi / Polymer Engineering and Science

Taking advantage of a chaotic system's extreme sensitivity to initial conditions, they use a series of tiny, judiciously chosen and carefully applied perturbations to maneuver its behavior into the type of periodic motion desired.

Achieving control of chaos at high speeds by Peterson, Ivars / Science News

period-luminosity relation