众所周知，设备会在建筑物中引起不必要的振动。弹簧被用来隔离这些振动，减少传递给建筑结构的力。对于简单的垂直简谐运动和自由振动，可以使用简单的图表轻松评估问题。评估弹簧隔震设备对地震的反应并不简单。包括一种数值方法来评估设备对地震的响应和谐波强迫函数。为了进行数值分析，简化了弹簧上设备的配置。可以开发一种简化的方法和相关的运动方程来评估具有垂直和水平强迫功能的设备的响应。 弹簧隔离在垂直方向上的响应基于作用在质心上的垂直力函数，并导致总质量的平移（上下）。水平力函数导致围绕质心的角度发生变化。如果设备的质量偏离质量中心，则垂直和角度响应是耦合的。弹簧处产生的张力和压缩力与质心垂直和旋转位移及速度直接相关。该数值方法的结果可用于验证简化方法。单元:I-PCITION:研讨会论文，加利福尼亚州阿纳海姆，2004年

It is well known that equipment can cause unwanted vibrations in buildings. Springs have been used to isolate these vibrations and reduce transmitted forces to building structures. For simple vertical harmonic motion and free vibration, the problem is easily evaluated using simple charts and figures. Evaluation of spring-isolated equipment responding to earthquakes is not simple. A numerical method is included to evaluate response of equipment to earthquakes and harmonic forcing functions. Configuration of equipment on springs is simplified for numerical analysis. A simplified approach and associated equations of motion can be developed to evaluate the response of the equipment with vertical and horizontal forcing functions. Response of spring isolation in the vertical direction is based on the vertical forcing function acting on the center of mass and results in the translation of the total mass (up and down). Horizontal forcing functions result in a change in the angle around the center of mass. If the mass of the equipment is offset from the center of mass, then the vertical and angular responses are coupled. Resulting tension and compression forces at the spring can be directly related to the center of mass vertical and rotational displacements and velocities. Results of this numerical method may be used to verify simplified methods.Units: I-P