还原候风地动仪的稳定倒立摆结构  

STABLE STRUCTURE OF INVERTED PENDULUM USED TO REVERT THE HOUFENG SEISMOGRAPH

作　　者：陈茂林[1] 曹家伟 刘钊[1] 朱玉田[1] CHEN MaoLin;CAO JiaWei;LIU Zhao;ZHU YuTian(School of Mechanical Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]同济大学机械与能源工程学院,上海201804

出　　处：《机械强度》2020年第5期1250-1253,共4页Journal of Mechanical Strength

摘　　要：历史上很多学者曾对候风地动仪的原理进行了还原和探索,但各自都有不符合史实的部分,这使得公众和部分学者对其真实性提出了质疑。为此需要提出一种合理的原理模型。经研究发现了一种不需要使用弹簧的稳定倒立摆结构,在保证尺寸、制造工艺符合史实的同时能具有较低的固有频率,可以用来研制符合后汉书描述的候风地动仪。并对此结构在Matlab中进行仿真,其结果证明此结构能对地震波做出响应并发出警示,是一种合理的候风地动仪原理模型。Historically,there have been many restorations and explorations of the structure of the Houfeng seismograph,but there are unreasonable points.This has caused the public and some scholars to question its authenticity,so a reasonable principle model needs to be proposed.We found a stable inverted pendulum structure that does not require the use of springs.It have a low natural frequency while ensuring the size and manufacturing process in line with historical facts,and can be used to develop the Houfeng seismograph that meets the requirements of the later Han.And we simulated the structure in matlab.The result proves that the structure can respond to the seismic wave and issue a warning.It is a reasonable model of the Houfeng seismograph.

关 键 词：候风地动仪 倒立摆结构 低固有频率 地震波 振动仿真 

分 类 号：TH111[机械工程—机械设计及理论]