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DISPLACEMENT SUPPRESSION DEVICE, BASE ISOLATION SYSTEM AND NEGATIVE RESTORING FORCE MECHANISM
To provide a displacement suppression device capable of easily restoring an object to an initial position.SOLUTION: A displacement suppression device 9 that suppresses the displacement u of a base isolation object 103 with respect to a support structure 101, comprises a positive restoring force mechanism 11 and a negative restoring force mechanism 13. The positive restoring force mechanism 11 generates a restoring force depending on the displacement u, has a positive spring characteristic for the restoring force, and applies the restoring force to the base isolation object 103. The negative restoring force mechanism 13 generates a restoring force depending on the displacement u, has a negative spring characteristic for the restoring force, and applies the restoring force to the base isolation object 103 in parallel with the positive restoring force mechanism 11. Also, the negative restoring force mechanism 13 increases an absolute value |k| of a rate of change of the restoring force with respect to the displacement u as the displacement u increases.SELECTED DRAWING: Figure 1
【課題】対象物を初期位置へ復帰させることが容易な変位抑制装置を提供する。【解決手段】支持構造物１０１に対する免震対象物１０３の変位ｕを抑制する変位抑制装置９は、正復元力機構１１と、負復元力機構１３とを有している。正復元力機構１１は、変位ｕに応じた復元力を生じ、当該復元力に関して正のばね特性を有しており、この復元力を免震対象物１０３に付与する。負復元力機構１３は、変位ｕに応じた復元力を生じ、当該復元力に関して負のばね特性を有しており、正復元力機構１１とは並列に、この復元力を免震対象物１０３に付与する。また、負復元力機構１３は、変位ｕに対する復元力の変化率の絶対値｜ｋ＊｜を変位ｕの増加に伴って大きくする。【選択図】図１
DISPLACEMENT SUPPRESSION DEVICE, BASE ISOLATION SYSTEM AND NEGATIVE RESTORING FORCE MECHANISM
To provide a displacement suppression device capable of easily restoring an object to an initial position.SOLUTION: A displacement suppression device 9 that suppresses the displacement u of a base isolation object 103 with respect to a support structure 101, comprises a positive restoring force mechanism 11 and a negative restoring force mechanism 13. The positive restoring force mechanism 11 generates a restoring force depending on the displacement u, has a positive spring characteristic for the restoring force, and applies the restoring force to the base isolation object 103. The negative restoring force mechanism 13 generates a restoring force depending on the displacement u, has a negative spring characteristic for the restoring force, and applies the restoring force to the base isolation object 103 in parallel with the positive restoring force mechanism 11. Also, the negative restoring force mechanism 13 increases an absolute value |k| of a rate of change of the restoring force with respect to the displacement u as the displacement u increases.SELECTED DRAWING: Figure 1
【課題】対象物を初期位置へ復帰させることが容易な変位抑制装置を提供する。【解決手段】支持構造物１０１に対する免震対象物１０３の変位ｕを抑制する変位抑制装置９は、正復元力機構１１と、負復元力機構１３とを有している。正復元力機構１１は、変位ｕに応じた復元力を生じ、当該復元力に関して正のばね特性を有しており、この復元力を免震対象物１０３に付与する。負復元力機構１３は、変位ｕに応じた復元力を生じ、当該復元力に関して負のばね特性を有しており、正復元力機構１１とは並列に、この復元力を免震対象物１０３に付与する。また、負復元力機構１３は、変位ｕに対する復元力の変化率の絶対値｜ｋ＊｜を変位ｕの増加に伴って大きくする。【選択図】図１
DISPLACEMENT SUPPRESSION DEVICE, BASE ISOLATION SYSTEM AND NEGATIVE RESTORING FORCE MECHANISM
変位抑制装置、免震システム及び負復元力機構
SAITO MASATO (author) / SANDIA NEPAL (author) / MURAI KAZUO (author)
2019-09-26
Patent
Electronic Resource
Japanese
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