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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
VARIABLE INERTIA MASS TYPE VIBRATION CONTROL DEVICE
PROBLEM TO BE SOLVED: To perform an effective restriction of vibration under a large inertia mass by integrating an inertia body with a rotary shaft member to increase a rotation moment against a specified vibration added to an object to be controlled in vibration.SOLUTION: An axial relative motion between a casing 2 and a sleeve 3 is converted into a rotation motion of a rotary shaft member 6 made of soft magnetic material by a ball screw 4 and a ball nut 5. A tight-sealed area 13 is formed between it and an outer periphery of the rotary shaft member 6 and an inertia body 7 made of soft magnetic material is coaxially supported with the rotary shaft member 6 in the casing 2. Electromagnets 8 forming a magnetic field M crossing a tight-sealed area 13 while the rotary shaft member 6 and the inertia body 7 are being applied as a part of a magnetic circuit are stored in the inertia body 7 and they are connected to an external DC power supply through a commutator 9 and a brush 10. A magnetic field by the electromagnets 8 is applied in a first tight-sealed area 13 to cause viscous hardness of magnetic viscous fluid 14 to be increased, the inertia body 7 to be integrally rotated with the rotary shaft member 6 and its rotation moment to be increased and requisite inertia mass required for restriction of vibration can be attained.SELECTED DRAWING: Figure 1
【課題】制振対象に加わる所定の振動に対して、回転軸部材に慣性体を一体化して回転モーメントを増大させ、大きな慣性質量により振動を効果的に抑制する。【解決手段】 ケーシング２とスリーブ３との間の軸方向の相対移動をボールねじ４及びボールナット５により軟磁性材からなる回転軸部材６の回転運動に変換する。回転軸部材６の外周との間に密閉領域１３を形成し、ケーシング２内に軟磁性材からなる慣性体７を回転軸部材６と同軸的に支持する。回転軸部材６及び慣性体７を磁気回路の一部として密閉領域１３を横切る磁場Ｍを形成する電磁石８を慣性体７に内蔵させ、整流子９，ブラシ１０を介して外部の直流電源に接続する。第１密閉領域１３内に、電磁石８による磁場を印加することにより磁気粘性流体１４の粘性硬度を増し、回転軸部材６と一体的に慣性体７を回転させ、回転モーメントを増大させて振動抑制に必要な慣性質量を得る。【選択図】 図１
VARIABLE INERTIA MASS TYPE VIBRATION CONTROL DEVICE
PROBLEM TO BE SOLVED: To perform an effective restriction of vibration under a large inertia mass by integrating an inertia body with a rotary shaft member to increase a rotation moment against a specified vibration added to an object to be controlled in vibration.SOLUTION: An axial relative motion between a casing 2 and a sleeve 3 is converted into a rotation motion of a rotary shaft member 6 made of soft magnetic material by a ball screw 4 and a ball nut 5. A tight-sealed area 13 is formed between it and an outer periphery of the rotary shaft member 6 and an inertia body 7 made of soft magnetic material is coaxially supported with the rotary shaft member 6 in the casing 2. Electromagnets 8 forming a magnetic field M crossing a tight-sealed area 13 while the rotary shaft member 6 and the inertia body 7 are being applied as a part of a magnetic circuit are stored in the inertia body 7 and they are connected to an external DC power supply through a commutator 9 and a brush 10. A magnetic field by the electromagnets 8 is applied in a first tight-sealed area 13 to cause viscous hardness of magnetic viscous fluid 14 to be increased, the inertia body 7 to be integrally rotated with the rotary shaft member 6 and its rotation moment to be increased and requisite inertia mass required for restriction of vibration can be attained.SELECTED DRAWING: Figure 1
【課題】制振対象に加わる所定の振動に対して、回転軸部材に慣性体を一体化して回転モーメントを増大させ、大きな慣性質量により振動を効果的に抑制する。【解決手段】 ケーシング２とスリーブ３との間の軸方向の相対移動をボールねじ４及びボールナット５により軟磁性材からなる回転軸部材６の回転運動に変換する。回転軸部材６の外周との間に密閉領域１３を形成し、ケーシング２内に軟磁性材からなる慣性体７を回転軸部材６と同軸的に支持する。回転軸部材６及び慣性体７を磁気回路の一部として密閉領域１３を横切る磁場Ｍを形成する電磁石８を慣性体７に内蔵させ、整流子９，ブラシ１０を介して外部の直流電源に接続する。第１密閉領域１３内に、電磁石８による磁場を印加することにより磁気粘性流体１４の粘性硬度を増し、回転軸部材６と一体的に慣性体７を回転させ、回転モーメントを増大させて振動抑制に必要な慣性質量を得る。【選択図】 図１
VARIABLE INERTIA MASS TYPE VIBRATION CONTROL DEVICE
可変慣性質量型制振装置
SATO YUSUKE (Autor:in)
22.06.2017
Patent
Elektronische Ressource
Japanisch
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