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一、引言螺旋弹簧用于振动控制已有数十年的历史,主要是因为它们有较高的竖向柔度(例如与天然橡胶或氯丁橡胶支座相比),同时还有一定的水平向柔度,而其水平柔度与竖向柔度的比值并非一成不变,仅需调整弹簧的尺寸就可以适应各种不同的要求。在防震方面使用同样的基本元件,效果也同样可观。这种隔震器,最初主要用于核电站的设备。对于核电站,不仅在水平方向,而且在所有自由度方向都需要提供保护,这点非常重要。氯丁橡胶元体曾用于全基础隔振,显
I. INTRODUCTION Coiled springs have been used in vibration control for decades, mainly because of their higher vertical flexibility (compared to natural rubber or neoprene bearings, for example), but they also have a certain level. The degree of flexibility, and the ratio of its horizontal flexibility to vertical flexibility is not constant, just adjust the size of the spring to adapt to a variety of different requirements. The same basic components are used in shock protection and the effect is also considerable. This type of isolator was originally mainly used for nuclear power plant equipment. For nuclear power plants, protection is needed not only in the horizontal direction but also in all degrees of freedom. This is very important. The neoprene element has been used for full-base vibration isolation.