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A platform for research: civil engineering, architecture and urbanism
Constraint damping wind power tower
The invention provides a constraint damping wind power tower which comprises a wind power tower body and a constraint damping structure, the wind power tower body comprises a tower barrel, and the constraint damping structure is arranged on the tower barrel and tightly connected with the barrel wall of the tower barrel. Wherein the constraint damping structure comprises a damping layer and a constraint layer, and the damping layer is arranged between the constraint layer and the barrel wall of the tower barrel. The constraint damping structure is arranged at the preset height of the tower barrel, the viscoelasticity of the damping layer and the rigidity characteristics of the barrel wall of the tower barrel and the constraint layer are utilized, so that when the tower barrel vibrates in a bending mode, the damping layer can be bent and deformed along with the tower barrel, and the constraint layer further limits the damping layer to be bent and deformed along with the tower barrel; and then the damping layer generates shear strain energy consumption between the tower drum wall and the restraint layer, so that the damping performance of the tower drum is improved, the local strain of the tower drum is reduced, a certain degree of vibration reduction effect is provided for the wind power tower under complex dynamic response, and the risk of fatigue failure of the wind power tower is reduced.
本申请提供了约束阻尼风电塔，包括风电塔和约束阻尼结构，风电塔包括塔筒，约束阻尼结构设置在塔筒上，与塔筒的筒壁紧密连接。其中，约束阻尼结构包括阻尼层和约束层，阻尼层设置在约束层与塔筒的筒壁之间。本身请通过将约束阻尼结构设置在塔筒的预设高度，利用阻尼层的粘弹性，以及塔筒的筒壁和约束层的刚性特点，使塔筒能够在以弯曲模态振动时，阻尼层能够随塔筒弯曲变形，而约束层又进一步限定阻尼层随塔筒弯曲变形，进而使阻尼层在塔筒筒壁和约束层之间产生剪切应变耗能，以提升塔筒的阻尼性能，降低塔筒的局部应变，并在复杂动力响应下为风电塔提供一定程度的减振效果，降低风电塔产生疲劳失效的风险。
Constraint damping wind power tower
The invention provides a constraint damping wind power tower which comprises a wind power tower body and a constraint damping structure, the wind power tower body comprises a tower barrel, and the constraint damping structure is arranged on the tower barrel and tightly connected with the barrel wall of the tower barrel. Wherein the constraint damping structure comprises a damping layer and a constraint layer, and the damping layer is arranged between the constraint layer and the barrel wall of the tower barrel. The constraint damping structure is arranged at the preset height of the tower barrel, the viscoelasticity of the damping layer and the rigidity characteristics of the barrel wall of the tower barrel and the constraint layer are utilized, so that when the tower barrel vibrates in a bending mode, the damping layer can be bent and deformed along with the tower barrel, and the constraint layer further limits the damping layer to be bent and deformed along with the tower barrel; and then the damping layer generates shear strain energy consumption between the tower drum wall and the restraint layer, so that the damping performance of the tower drum is improved, the local strain of the tower drum is reduced, a certain degree of vibration reduction effect is provided for the wind power tower under complex dynamic response, and the risk of fatigue failure of the wind power tower is reduced.
本申请提供了约束阻尼风电塔，包括风电塔和约束阻尼结构，风电塔包括塔筒，约束阻尼结构设置在塔筒上，与塔筒的筒壁紧密连接。其中，约束阻尼结构包括阻尼层和约束层，阻尼层设置在约束层与塔筒的筒壁之间。本身请通过将约束阻尼结构设置在塔筒的预设高度，利用阻尼层的粘弹性，以及塔筒的筒壁和约束层的刚性特点，使塔筒能够在以弯曲模态振动时，阻尼层能够随塔筒弯曲变形，而约束层又进一步限定阻尼层随塔筒弯曲变形，进而使阻尼层在塔筒筒壁和约束层之间产生剪切应变耗能，以提升塔筒的阻尼性能，降低塔筒的局部应变，并在复杂动力响应下为风电塔提供一定程度的减振效果，降低风电塔产生疲劳失效的风险。
Constraint damping wind power tower
一种约束阻尼风电塔
YUE ZHIJI (author) / SUN FEIFEI (author) / YIN WENHAN (author) / CAI XIAOYING (author) / TIAN HUIYUAN (author) / CHEN LI (author) / SONG JING (author) / ZHAO JIAHONG (author) / LIN MIN (author) / SHI YUQI (author)
2023-10-31
Patent
Electronic Resource
Chinese
Wind power tower adjustable damper with damping function and adjusting method
| European Patent Office | 2022