VIBRATION STRUCTURE AND METHOD OF CONTROLLING NATURAL FREQUENCY OF VIBRATION STRUCTURE

PROBLEM TO BE SOLVED: To provide a vibration structure which can simply control the natural frequency of a vibration structure. SOLUTION: A vibration structure is composed of a spring having one end connected to a support end 23, and an inertia body 21 adapted to vibrate via the resiliency of the sp...

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Hauptverfasser:	SOU KIBU, RI KIHOU, RI HEIRETSU, SOU EIKOU
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROLLING FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL GYROSCOPIC INSTRUMENTS INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING ELECTRIC VARIABLES MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MEASURING MAGNETIC VARIABLES METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY NAVIGATION PERFORMING OPERATIONS PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS REGULATING SURVEYING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a vibration structure which can simply control the natural frequency of a vibration structure. SOLUTION: A vibration structure is composed of a spring having one end connected to a support end 23, and an inertia body 21 adapted to vibrate via the resiliency of the spring 22, an electrode 24 coupled to the support end 23, for controlling an effective rigidity, and a power supply source 25 for generating electricity between the inertia body 21 and the electrode 24. This vibration structure can control the natural frequency only by changing the applied voltage since the generated electricity linearly varies in accordance with a displacement of the inertia body 21.