分别对惯用法、修正惯用法、多铰环法和梁—弹簧模型法进行了理论分析，对比并选择了合理的设计方法。
Theoretical analyzing the Routine Method, Modified Routine Method, Multi-Hinge Ring Method and Beam-Spring Model Method respectively, and choose the appropriate design method after comparison.
首先确定多股螺旋弹簧的虚拟质量，建立了多股螺旋弹簧的动态模型。
The virtual mass of the spring was brought out firstly and the dynamic model was established sequentially.
结合多股螺旋弹簧的静态设计方法，重点考虑动态性能要求，提出一种静态与动态相结合的设计模型。
A model of dynamic design is brought forward in accordance with its static design, especially its dynamic performance.
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