JP2001132794A - Restoring force device for base isolation structure - Google Patents
Restoring force device for base isolation structureInfo
- Publication number
- JP2001132794A JP2001132794A JP31645599A JP31645599A JP2001132794A JP 2001132794 A JP2001132794 A JP 2001132794A JP 31645599 A JP31645599 A JP 31645599A JP 31645599 A JP31645599 A JP 31645599A JP 2001132794 A JP2001132794 A JP 2001132794A
- Authority
- JP
- Japan
- Prior art keywords
- seismic isolation
- restoring force
- rack
- base isolation
- isolation structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、復元力機能のみ
を働き、鉛直荷重支持機能と減衰機能は滑り支承などに
分担させて免震構造を構成する、免震構造用復元力装置
の技術分野に属する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a restoring force device for a base-isolated structure in which only a restoring force function is applied, and a vertical load supporting function and a damping function are shared by a sliding bearing or the like to constitute a seismic isolation structure. Belongs to.
【０００２】[0002]
【従来の技術】従来、免震構造は、鉛直荷重支持要素、
復元力要素、及び減衰要素の組合わせで構成されてい
る。2. Description of the Related Art Conventionally, a seismic isolation structure has a vertical load supporting element,
It consists of a combination of a restoring force element and a damping element.
【０００３】鉛直荷重支持要素と復元力要素には積層ゴ
ムが、減衰要素には鋼材ダンパー、鉛ダンパー、粘性体
ダンパーなどが一般的に使用されている。積層ゴムを復
元力要素として使用した場合には、ゴム層厚とゴムの剪
断弾性係数、および積層ゴムの単位面積当たりの鉛直荷
重（いわゆる面圧）により免震周期が決定される。[0003] Laminated rubber is generally used for the vertical load supporting element and the restoring force element, and a steel damper, a lead damper, a viscous material damper and the like are generally used for the damping element. When the laminated rubber is used as the restoring force element, the seismic isolation period is determined by the thickness of the rubber layer, the shear modulus of the rubber, and the vertical load (so-called surface pressure) per unit area of the laminated rubber.
【０００４】積層ゴムの中心に鉛棒を挿入して複合化し
た鉛入り積層ゴム、ゴムのコンパウンドに減衰性能を付
加した高減衰ゴムなどを用いた積層ゴムは、前記鉛直荷
重支持機能と復元力機能および減衰機能の３要素を一つ
の装置（デバイス）で実現する。[0004] Laminated rubber using lead-laminated rubber compounded by inserting a lead rod into the center of a laminated rubber, or high-damping rubber having a rubber compound with a damping property is used for the vertical load supporting function and restoring force. The function and the damping function are realized by one device.
【０００５】一方、滑り支承を用いた免震構造は、積層
ゴムのみを用いた免震構造に比べて免震周期の長期化が
可能である。滑り支承自体は、鉛直荷重支持機能と減衰
機能とを併せ持つが、復元力機能としては別途、積層ゴ
ムを使用することが従来一般的である。On the other hand, a seismic isolation structure using a sliding bearing can make the seismic isolation cycle longer than a seismic isolation structure using only laminated rubber. Although the sliding bearing itself has both a vertical load supporting function and a damping function, it is conventionally general to separately use a laminated rubber as a restoring force function.
【０００６】いわゆるＦＰＳ（Ｆｒｉｃｔｉｏｎ Ｐｅ
ｎｄｕｌｕｍ Ｓｙｓｔｅｍ）は、円弧状の滑り面を有
することにより免震周期を決定し、鉛直荷重支持機能と
復元力機能および減衰機能の３要素を一つの装置（デバ
イス）で実現している。A so-called FPS (Friction Pe)
Ndulum System) determines the seismic isolation period by having an arc-shaped sliding surface, and realizes three elements of a vertical load support function, a restoring force function, and a damping function in one device.
【０００７】なお、特開平５−１８７１４９号公報に
は、免震層を構成する上部構造体と下部構造体の間に歯
車を配置した免震構造が記載され、特開平１１−５１１
１２号公報には、免震層を構成する上部構造体と下部構
造体の間に、ラックピニオン形式または複数のローラを
並べた形式の平行移動機構を設置した免震構造が記載さ
れているが、いずれも免震層における上部構造体と下部
構造体の層間変形を円滑に行わせるための手段であっ
て、復元力機能を持たない。Japanese Unexamined Patent Publication No. Hei 5-187149 discloses a seismic isolation structure in which a gear is arranged between an upper structure and a lower structure constituting a seismic isolation layer.
No. 12 discloses a seismic isolation structure in which a rack-pinion type or a type in which a plurality of rollers are arranged in parallel is installed between an upper structure and a lower structure constituting a seismic isolation layer. These are means for smoothly performing the interlayer deformation of the upper structure and the lower structure in the seismic isolation layer, and do not have a restoring force function.
【０００８】[0008]
【本発明が解決しようとする課題】上記積層ゴムは、材
料的な問題として、ゴム自体が自然材料をベース（基
材）としているため、材料特性のバラツキが大きい。ま
た、製法上の問題として、加硫接着を行うため、製品と
してのバラツキが比較的大きい。その結果として積層ゴ
ムの復元力（水平剛性）のバラツキが設計値の±１０％
程度と大きい。しかも復元力が水平面内で同一であるた
め、水平２軸方向成分とねじれ成分の免震周期が非常に
接近しており、免震層におけるねじれ応答に大きな影響
を及ぼす。The above laminated rubber has a large material variation because the rubber itself is based on a natural material (base material) as a material problem. In addition, as a problem in the production method, since vulcanization bonding is performed, the variation as a product is relatively large. As a result, the variation in the restoring force (horizontal rigidity) of the laminated rubber is ± 10% of the design value.
About as large. Moreover, since the restoring force is the same in the horizontal plane, the seismic isolation periods of the horizontal two-axis direction component and the torsional component are very close to each other, which greatly affects the torsional response in the seismic isolation layer.
【０００９】上記のＦＰＳを使用した場合、免震周期は
滑り面の曲率のみで決定されるが、その機構上、大きな
鉛直荷重を支持することは難しく、免震周期を長くした
場合には滑り面の曲率が大きくなり、振動終了後の残留
変形が増大する可能性が高い欠点がある。When the above-mentioned FPS is used, the seismic isolation period is determined only by the curvature of the sliding surface. However, due to its mechanism, it is difficult to support a large vertical load. There is a drawback that the curvature of the surface is increased and the residual deformation after the end of the vibration is likely to increase.
【００１０】本発明の目的は、鉛直荷重支持機能と減衰
機能は滑り支承などに分担させ、復元力機能のみを働く
要素として免震構造を構成する免震構造用復元力装置を
提供することである。An object of the present invention is to provide a restoring force device for a base-isolated structure in which a vertical load supporting function and a damping function are shared by a sliding bearing or the like, and the seismic-isolated structure is configured as an element that works only the restoring force function. is there.
【００１１】本発明の次の目的は、構造的に明解で、免
震構造の設計にあたり免震周期の設計自由度の拡大、免
震層の偏心率を低減化してねじれ振動の低減に寄与する
ことができ、更に復元力のバラツキが少ない免震構造用
復元力装置を提供することである。A second object of the present invention is structurally clear and contributes to the reduction of the torsional vibration by increasing the degree of freedom of the design of the seismic isolation period and reducing the eccentricity of the seismic isolation layer in designing the seismic isolation structure. An object of the present invention is to provide a restoring force device for a base-isolated structure that can reduce the variation in restoring force.
【００１２】[0012]
【課題を解決するための手段】上述した課題を解決する
ための手段として、請求項１記載の発明に係る免震構造
用復元力装置は、免震層を構成する上部構造体と下部構
造体のいずれか一方へ水平方向に取り付けるラック体
と、前記ラック体のラック歯と噛み合うピニオンと、前
記ピニオンの回転を大幅に減速して回転軸へ伝達する減
速機構と、一端を他の構造体へ止着して前記ラック体と
同方向に配置され、他端は前記回転軸に止着して少なく
とも回転軸の両側に２本配置された弾性材とで構成され
ているとを特徴とする。According to another aspect of the present invention, there is provided a restoring device for a base-isolated structure according to the first aspect of the present invention. A rack body to be mounted horizontally to any one of the above, a pinion that meshes with rack teeth of the rack body, a reduction mechanism that significantly reduces the rotation of the pinion and transmits the rotation to the rotation shaft, and one end to another structure. The rack is fastened and arranged in the same direction as the rack body, and the other end is fastened to the rotating shaft and is constituted by at least two elastic members arranged on both sides of the rotating shaft.
【００１３】請求項２記載の発明は、請求項１に記載し
た免震構造用復元力装置において、弾性材にトリガ機能
用として適切な大きさの予張力が導入されることを特徴
とする。According to a second aspect of the present invention, in the restoring force device for a base-isolated structure according to the first aspect, a pretension having an appropriate magnitude for a trigger function is introduced into the elastic member.
【００１４】請求項３記載の発明は、請求項１に記載し
た免震構造用復元力装置において、弾性材の断面積及び
本数を調節して免震周期を適切に設計することを特徴と
する。According to a third aspect of the present invention, in the restoring force device for a seismic isolation structure according to the first aspect, the seismic isolation period is appropriately designed by adjusting the cross-sectional area and the number of the elastic members. .
【００１５】[0015]
【発明の実施形態及び実施例】図１と図２に、請求項１
〜３記載の発明の実施形態を示した。1 and 2 show a first embodiment of the present invention.
The embodiments of the invention described in Nos. 1 to 3 have been described.
【００１６】この免震構造用復元力装置は、免震層を構
成する上部構造体１へ水平方向に取り付けたラック体３
と、前記ラック体３のラック歯３ａと噛み合うピニオン
４と、前記ピニオン４の回転をおよそ１／１００程度に
まで大幅に減速して回転軸６へ伝達する減速機構５と、
一端を下部構造体２へ止着して前記ラック体３と同方向
に配置され、その他端は前記回転軸６へ止着して回転軸
６の左右両側に図示例では合計４本配置した弾性材７
ａ、７ｂ及び８ａ、８ｂとで構成されている。回転軸６
は、軸受９を下部構造体２へ固定して支持されている。This seismic isolation structure restoring device comprises a rack 3 mounted horizontally on an upper structure 1 constituting a seismic isolation layer.
A pinion 4 that meshes with the rack teeth 3 a of the rack body 3, and a reduction mechanism 5 that significantly reduces the rotation of the pinion 4 to about 1/100 and transmits the rotation to the rotation shaft 6.
One end is fixed to the lower structure 2 and arranged in the same direction as the rack body 3, and the other end is fixed to the rotating shaft 6 and a total of four elastic members are arranged on the left and right sides of the rotating shaft 6 in the illustrated example. Lumber 7
a, 7b and 8a, 8b. Rotary shaft 6
Are supported by fixing the bearing 9 to the lower structure 2.
【００１７】前記ラック体３のラック歯３ａは、上下の
構造体１、２の最大層間変形（一例として５０cm位）よ
りも少し長い程度の有効長さに形成されている。The rack teeth 3a of the rack body 3 are formed to have an effective length slightly longer than the maximum interlayer deformation (about 50 cm as an example) of the upper and lower structures 1, 2.
【００１８】前記減速機構５として、図示例ではピニオ
ン４と同軸に固定された小歯車５ａと、回転軸６に固定
した大歯車５ｂとのギヤ比（歯数比）を１：１００に設
定して所要の減速比を達成しているが、この構成の限り
ではない。更に多数の歯車を使用した歯車列による減速
機構の他、ベルト式減速機構（所謂凹凸を有するタイミ
ングベルトの場合を含む。）、圧接ローラ式減速機構、
梃子式減速機構などを適宜選択し又は組合わせ応用して
採用実施することができる。In the illustrated example, the gear ratio (number of teeth) between the small gear 5a fixed coaxially with the pinion 4 and the large gear 5b fixed to the rotary shaft 6 is set to 1: 100. Although the required reduction ratio has been achieved by using this configuration, it is not limited to this configuration. In addition to a speed reduction mechanism using a gear train using a large number of gears, a belt type speed reduction mechanism (including the case of a timing belt having so-called unevenness), a pressure roller type speed reduction mechanism,
A lever-type speed reduction mechanism or the like can be appropriately selected or used in combination.
【００１９】前記弾性材７ａ、７ｂと８ａ、８ｂとして
は、鋼棒、鉄筋、鋼より線などを適宜選択して実施でき
る。この弾性材は、免震層の層間変形をラックピニオン
機構で変換した回転軸６の正逆２方向の回転にしたが
い、必ず単純引張り応力を発生するように、回転軸６の
左右両側に少なくとも２本配置される。図示例の場合
は、平面的には前記大歯車５ｂを挟んだ両側の位置に
（図２）、立面的には回転軸６の上下の外径面の位置
に、それぞれ合計４本の弾性材７ａ、７ｂと８ａ、８ｂ
が左右、及び上下対称な配置に設置されている。図示例
の場合、回転軸６の時計回り回転時には２本の弾性材７
ａ、７ｂが引張られ、残り２本の弾性材８ａ、８ｂは圧
縮力を受けるが、弾性材（例えば鋼棒）はその外径に比
して材長が長いので、緩むことになる。逆に反時計回り
時には２本の弾性材８ａ、８ｂが引張り側となり、他の
７ａ、７ｂが緩み側となる構成とされている。As the elastic members 7a, 7b and 8a, 8b, a steel rod, a reinforcing bar, a steel stranded wire or the like can be appropriately selected and implemented. This elastic material is provided at least on both left and right sides of the rotating shaft 6 so as to always generate a simple tensile stress in accordance with the forward and reverse rotation of the rotating shaft 6 obtained by converting the interlayer deformation of the seismic isolation layer by the rack and pinion mechanism. This is arranged. In the case of the illustrated example, a total of four elastic members are respectively provided at positions on both sides of the large gear 5b in a plan view (FIG. 2) and at positions on the upper and lower outer diameter surfaces of the rotary shaft 6 in a vertical direction. Materials 7a, 7b and 8a, 8b
Are installed in a symmetrical arrangement, left and right, and up and down. In the case of the illustrated example, when the rotating shaft 6 rotates clockwise, two elastic members 7 are used.
Although a and 7b are pulled and the remaining two elastic members 8a and 8b receive a compressive force, the elastic member (for example, a steel rod) is loosened because its length is longer than its outer diameter. Conversely, at the time of counterclockwise rotation, the two elastic members 8a and 8b are on the tension side, and the other elastic members 7a and 7b are on the loose side.
【００２０】具体的な実施例として、図１、図２の左右
方向のスパンＬを６．４ｍとし、減速機構５の減速比を
１／１００、免震層の水平相対変位δを５０cmとした場
合、弾性材７ａ、７ｂと８ａ、８ｂそれぞれのひずみ量
εは、ε＝（５０cm／１００）／（６４０cm／２）＝１
５６２．５×１０−６となる。前記弾性材が建築構造用
鉄筋である場合、前記程度のひずみ量εは十分に弾性域
（弾性限度）の範囲であるため、その弾性により元位置
まで復元して残留変形を発生しない。As a specific embodiment, the horizontal span L in FIGS. 1 and 2 is 6.4 m, the reduction ratio of the reduction mechanism 5 is 1/100, and the horizontal relative displacement δ of the seismic isolation layer is 50 cm. In this case, the amount of strain ε of each of the elastic members 7a, 7b and 8a, 8b is ε = (50 cm / 100) / (640 cm / 2) = 1
562.5 × 10 −6 . When the elastic material is a reinforcing steel for a building structure, the above-mentioned strain amount ε is sufficiently in the range of elasticity (elasticity limit).
【００２１】前記復元力Ｆの大きさは、上部構造体１の
総重量Ｗと設計免震周期Ｔとから求めることができる。
前記の減速比をα、弾性体（鋼棒）のヤング係数をＥ、
スパンＬ、重力加速度をｇとし、この復元力装置の各弾
性体の横断面積Ａ、弾性体の総本数ｎを求めるとき、次
の数式が成立する。The magnitude of the restoring force F can be obtained from the total weight W of the upper structure 1 and the design seismic isolation period T.
The reduction ratio is α, the Young's modulus of the elastic body (steel bar) is E,
When the span L and the gravitational acceleration are g, and the cross-sectional area A of each elastic body of the restoring force device and the total number n of the elastic bodies are obtained, the following formula is established.
【００２２】［数１］ ｎＡ＝２π２ＷＬ／（αＥＴ２ｇ）[Equation 1] nA = 2π 2 WL / (αET 2 g)
【００２３】なお、弾性材にトリガ機能用として適切な
大きさの予張力（プレストレス）を導入すると、図３に
復元力特性を示すようにバイリニアな復元力特性とな
り、第１の折点荷重Ｆ１が耐風トリガー機能として働く
（請求項２記載の発明）。When a pre-stress (pre-stress) of an appropriate magnitude is introduced into the elastic material for the trigger function, a bilinear restoring force characteristic is obtained as shown in FIG. F 1 acts as a wind resistant trigger function (the second aspect of the invention).
【００２４】更に、上記の数１の式から明らかなよう
に、回転軸６の左右両側に配置した各弾性材の断面積Ａ
及び本数ｎを調節することにより、免震周期Ｔを適切に
設計することができる（請求項３記載の発明）。Further, as is apparent from the above equation (1), the cross-sectional area A of each of the elastic members disposed on both the left and right sides of the rotating shaft 6 is shown.
By adjusting the number and the number n, the seismic isolation period T can be appropriately designed (the invention according to claim 3).
【００２５】いずれにしても、本発明の復元力装置は、
鋼棒のごとき弾性材の弾性限度内の単純引張り応力を復
元力に利用しているため、そのヤング係数Ｅは安定して
バラツキが少ない。したがって、復元力装置自体の復元
力にもバラツキが非常に少ないという特長がある。In any case, the restoring force device of the present invention
Since a simple tensile stress within the elastic limit of an elastic material such as a steel rod is used for the restoring force, its Young's modulus E is stable and has little variation. Therefore, there is a feature that the resilience of the resilience device itself is very small.
【００２６】本発明の免震構造用復元力装置Ｋは、図４
に免震層における鉛直荷重支持要素Ｍとの配置例を示し
たように、Ｘ−Ｙ２次元方向に必要数をバランス良く配
置すると共に、免震層のねじれを極力小さくするため
に、各弾性材の断面積Ａ及び本数ｎをバランス良く配置
して、ねじれ振動を励振され難い免震構造を実現するこ
とが可能である。The restoring force device K for the seismic isolation structure of the present invention is shown in FIG.
As shown in the example of the arrangement of the vertical load supporting elements M in the seismic isolation layer, the elastic members are arranged in the XY two-dimensional directions in a well-balanced manner, and each elastic material is used to minimize the torsion of the seismic isolation layer. It is possible to realize a seismic isolation structure in which the torsional vibration is hardly excited by arranging the cross-sectional area A and the number n of these in a well-balanced manner.
【００２７】[0027]
【本発明が奏する効果】請求項１〜３に記載した発明に
係る免震構造用復元力装置は、鉛直荷重支持機能と減衰
機能は滑り支承などに分担させ、復元力機能のみを働く
要素として免震構造の構築に寄与する。According to the first to third aspects of the present invention, the vertical load supporting function and the damping function are shared by the sliding bearing and the restoring force device for the seismic isolation structure. Contribute to the construction of a seismic isolation structure.
【００２８】本発明はまた、ピニオンラック機構の応用
と、鋼棒の如き弾性材の単純引張り応力を利用する、機
構的に明快、且つ簡便な免震構造用復元力装置を提供す
る。そして、免震構造の設計にあたり、免震周期の設計
自由度の拡大、免震層の偏心率を低減化してねじれ振動
の低減に寄与し、更に復元力のバラツキが少ない免震構
造用復元力装置を提供する。The present invention also provides a mechanically clear and simple restoring force device for a seismic isolation structure using an application of a pinion rack mechanism and a simple tensile stress of an elastic material such as a steel bar. When designing the seismic isolation structure, the seismic isolation structure has a greater degree of freedom in the design of the seismic isolation period, reduces the eccentricity of the seismic isolation layer, and contributes to the reduction of torsional vibration. Provide equipment.
【図１】本発明に係る免震構造用復元力装置の実施形態
を示した立面図である。FIG. 1 is an elevational view showing an embodiment of a seismic isolation structure restoring device according to the present invention.
【図２】図１の平面図である。FIG. 2 is a plan view of FIG.
【図３】復元力特性図である。FIG. 3 is a restoring force characteristic diagram.
【図４】免震層における免震構造用復元力装置及び鉛直
荷重支持要素の配置を示した平面図である。FIG. 4 is a plan view showing an arrangement of a seismic isolation structure restoring device and a vertical load supporting element in a seismic isolation layer.
１ 上部構造体 ２ 下部構造体 ３ ラック体 ３ａ ラック歯 ４ ピニオン ５ 減速機構 ６ 回転軸 ７ａ、７ｂ 弾性体 ８ａ、８ｂ 弾性体 DESCRIPTION OF SYMBOLS 1 Upper structure 2 Lower structure 3 Rack 3a Rack teeth 4 Pinion 5 Reduction mechanism 6 Rotation shaft 7a, 7b Elastic body 8a, 8b Elastic body
Claims (3)
のいずれか一方へ水平方向に取り付けるラック体と、前
記ラック体のラック歯と噛み合うピニオンと、前記ピニ
オンの回転を大幅に減速して回転軸へ伝達する減速機構
と、一端を他の構造体へ止着して前記ラック体と同方向
に配置され、他端は前記回転軸に止着して少なくとも回
転軸の両側に２本配置された弾性材とで構成されている
とを特徴とする免震構造用復元力装置。1. A rack mounted horizontally to one of an upper structure and a lower structure constituting a seismic isolation layer, a pinion meshing with rack teeth of the rack, and the rotation of the pinion is greatly reduced. A speed reduction mechanism for transmitting to the rotating shaft, and one end fastened to another structure and arranged in the same direction as the rack body, and the other end fastened to the rotating shaft at least on both sides of the rotating shaft. A restoring force device for a seismic isolation structure, characterized by being configured with the elastic material arranged in this manner.
の予張力が導入されることを特徴とする、請求項１に記
載した免震構造用復元力装置。2. The restoring force device for a base-isolated structure according to claim 1, wherein a pretension having an appropriate magnitude for a trigger function is introduced into the elastic member.
期を適切に設計することを特徴とする、請求項１に記載
した免震構造用復元力装置。3. The seismic isolation device according to claim 1, wherein the seismic isolation period is appropriately designed by adjusting the cross-sectional area and the number of the elastic members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31645599A JP2001132794A (en) | 1999-11-08 | 1999-11-08 | Restoring force device for base isolation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31645599A JP2001132794A (en) | 1999-11-08 | 1999-11-08 | Restoring force device for base isolation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001132794A true JP2001132794A (en) | 2001-05-18 |
Family
ID=18077293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31645599A Pending JP2001132794A (en) | 1999-11-08 | 1999-11-08 | Restoring force device for base isolation structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001132794A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859719A (en) * | 2017-12-08 | 2018-03-30 | 广州大学 | A kind of incomplete gear mechanism shock insulation stopping means |
| CN108086514A (en) * | 2018-01-19 | 2018-05-29 | 河北工业大学 | Self-resetting gear drive damper and assembling constructing method |
| CN109537971A (en) * | 2018-12-28 | 2019-03-29 | 北京筑信润捷科技发展有限公司 | A kind of friction energy-dissipating damper |
-
1999
- 1999-11-08 JP JP31645599A patent/JP2001132794A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859719A (en) * | 2017-12-08 | 2018-03-30 | 广州大学 | A kind of incomplete gear mechanism shock insulation stopping means |
| CN107859719B (en) * | 2017-12-08 | 2023-10-03 | 广州大学 | Incomplete gear mechanism shock insulation limiting device |
| CN108086514A (en) * | 2018-01-19 | 2018-05-29 | 河北工业大学 | Self-resetting gear drive damper and assembling constructing method |
| CN109537971A (en) * | 2018-12-28 | 2019-03-29 | 北京筑信润捷科技发展有限公司 | A kind of friction energy-dissipating damper |
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