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Nonlinear negative-stiffness multi-dimensional damping device
The invention discloses a nonlinear negative-stiffness multi-dimensional damping device. The nonlinear negative-stiffness multi-dimensional damping device comprises an outer box, an outer mass frame and an inner mass block, the inner mass block is located inside the outer mass frame, the outer mass frame is located in the outer box, an eddy current damping mechanism is arranged between the outer mass frame and the rigid outer box, a torsion spring damping mechanism is arranged between the inner mass block and the rigid outer box, and a negative-stiffness damping mechanism is arranged between the outer mass frame and the inner mass block. According to the nonlinear negative-stiffness multi-dimensional damping device, during upward reciprocating of the inner mass block in the horizontal X direction, the negative stiffness effect of a preloading spring in the negative-stiffness damping mechanism can be combined with the damping force produced by a torsion spring in the torsion spring damping mechanism, and nonlinear and efficient damping can be achieved; during upward reciprocating of the outer mass frame in the horizontal Y direction, the negative stiffness effect of the preloading spring in the negative-stiffness damping mechanism can be combined with the eddy current damping force generated by the eddy current damping mechanism, and multiple high-efficiency damping can be achieved; and the motions of the inner mass block and the outer mass frame belong to two dimensions and are independent of each other, and multi-dimensional damping is met.
一种非线性负刚度多维减振装置，包括外箱体、外质量框架及内质量块，内质量块位于外质量框架的内部，外质量框架位于外箱体的内部；外质量框架与刚性外箱体之间设有电涡流减振机构；内质量块与刚性外箱体之间设有扭转弹簧减振机构；外质量框架与内质量块之间设有负刚度减振机构。当内质量块在水平X向上往复运动时，负刚度减振机构中预压弹簧的负刚度作用会与扭转弹簧减振机构中扭转弹簧产生的阻尼力相联合，可实现非线性高效减振。当外质量框架在水平Y向上往复运动时，负刚度减振机构中预压弹簧的负刚度作用会与电涡流减振机构产生的电涡流阻尼力相联合，可实现多重高效减振。内质量块和外质量框架的运动分属两个维度且彼此独立，满足多维减振。
Nonlinear negative-stiffness multi-dimensional damping device
The invention discloses a nonlinear negative-stiffness multi-dimensional damping device. The nonlinear negative-stiffness multi-dimensional damping device comprises an outer box, an outer mass frame and an inner mass block, the inner mass block is located inside the outer mass frame, the outer mass frame is located in the outer box, an eddy current damping mechanism is arranged between the outer mass frame and the rigid outer box, a torsion spring damping mechanism is arranged between the inner mass block and the rigid outer box, and a negative-stiffness damping mechanism is arranged between the outer mass frame and the inner mass block. According to the nonlinear negative-stiffness multi-dimensional damping device, during upward reciprocating of the inner mass block in the horizontal X direction, the negative stiffness effect of a preloading spring in the negative-stiffness damping mechanism can be combined with the damping force produced by a torsion spring in the torsion spring damping mechanism, and nonlinear and efficient damping can be achieved; during upward reciprocating of the outer mass frame in the horizontal Y direction, the negative stiffness effect of the preloading spring in the negative-stiffness damping mechanism can be combined with the eddy current damping force generated by the eddy current damping mechanism, and multiple high-efficiency damping can be achieved; and the motions of the inner mass block and the outer mass frame belong to two dimensions and are independent of each other, and multi-dimensional damping is met.
一种非线性负刚度多维减振装置，包括外箱体、外质量框架及内质量块，内质量块位于外质量框架的内部，外质量框架位于外箱体的内部；外质量框架与刚性外箱体之间设有电涡流减振机构；内质量块与刚性外箱体之间设有扭转弹簧减振机构；外质量框架与内质量块之间设有负刚度减振机构。当内质量块在水平X向上往复运动时，负刚度减振机构中预压弹簧的负刚度作用会与扭转弹簧减振机构中扭转弹簧产生的阻尼力相联合，可实现非线性高效减振。当外质量框架在水平Y向上往复运动时，负刚度减振机构中预压弹簧的负刚度作用会与电涡流减振机构产生的电涡流阻尼力相联合，可实现多重高效减振。内质量块和外质量框架的运动分属两个维度且彼此独立，满足多维减振。
Nonlinear negative-stiffness multi-dimensional damping device
一种非线性负刚度多维减振装置
WANG XINGYU (author) / HAO ZHIFANG (author)
2020-06-26
Patent
Electronic Resource
Chinese
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