ORIGIN RETURN DEVICE FOR VIBRATION-ISOLATED STRUCTURE BUILDING

PROBLEM TO BE SOLVED: To provide an origin return device accurately correcting the displacement of the place of a building at a low cost when the place of the building supported through a vibration isolation layer having hysteretic characteristics is displaced by an earthquake or the like. SOLUTION:...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAMOTO MASAFUMI, TAKAKU KAZUTOSHI, UCHIYAMA YOSHIHIDE, KAWAMURA MITSUHIRO, KATAYAMA HIDENORI, MURAI NOBUYOSHI, HANIYUDA NOBUYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES CONTROLLING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FENCING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MASTS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING PHYSICS REGULATING SHOCK-ABSORBERS SPRINGS SWIMMING OR SPLASH BATHS OR POOLS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TENTS OR CANOPIES, IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an origin return device accurately correcting the displacement of the place of a building at a low cost when the place of the building supported through a vibration isolation layer having hysteretic characteristics is displaced by an earthquake or the like. SOLUTION: The origin return device is composed of a displacement detector 4 detecting the place to the origin of the building, hydraulic cylinders 11 displacing the building to a ground, an on-off valve 13 changing over the supply or discharge of oil pressure to or from the hydraulic cylinders 11, a controller 5 setting a place at a nearer distance from the origin than the current place of the building at the aimed place of the building and setting a command value corresponding to the aimed place and a servo amplifier 3 outputting a time proportional to the magnitude of a deflection between the command value and the current place of the building and signals driving the hydraulic cylinders 11 in the direction that the deflection is reduced.