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.
作者
陈茂林
曹家伟
刘钊
朱玉田
CHEN MaoLin;CAO JiaWei;LIU Zhao;ZHU YuTian(School of Mechanical Engineering,Tongji University,Shanghai 201804,China)
出处
《机械强度》
CAS
CSCD
北大核心
2020年第5期1250-1253,共4页
Journal of Mechanical Strength
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
Houfeng seismograph
Inverted pendulum structure
Low natural frequency
Seismic wave
Vibration simulation