Dong Yin-sheng, Lin Ping-hua, Chen Wen-jing
Department of Mechanical Engineering, Southeast University, Nanjing 210096, China.
Shanghai Kou Qiang Yi Xue. 2004 Oct;13(5):399-402.
The relationship between vertical loop structure and its mechanical properties was investigated in order to provide reference data for more proper use of vertical loop.
According to the acting manner in use, finite elements model of vertical loop was established and the finite elements software ANSYS was used to simulate the mechanical characteristics of the loops. The simulated data were summarized at the end.
The force and moment decreased with the increase of arm length, height and arc radius of the loop. The ratios of force to moment (M/F) decreased with the increase of arm length, but increased with the increase of height and arm radius. When the interval between the vertical arms enlarged, the force and moment rose and the M/F did not vary significantly.
To satisfy the requirement of individual patient, the structure of loop can be adjusted properly to output mediate force, moment and M/F value.
研究垂直曲结构与其力学性能之间的关系，为更合理地使用垂直曲提供参考数据。
根据垂直曲在使用中的作用方式，建立垂直曲的有限元模型，并使用有限元软件ANSYS模拟垂直曲的力学特性。最后对模拟数据进行总结。
垂直曲的力和力矩随臂长、高度和弧形半径的增加而减小。力与力矩之比（M/F）随臂长的增加而减小，但随高度和臂半径的增加而增大。当垂直臂之间的间距增大时，力和力矩增大，而M/F变化不显著。
为满足个体患者的需求，可适当调整垂直曲的结构以输出适中的力、力矩和M/F值。
