摘要
本论文以求铜棒动态杨氏模量的传统实验方法为基础,改变实验中接收端接收信号的实验方法,用李萨如图形来反映拾振端接收到的共振频率,并通过Origin 7.5统计软件把整个铜棒上很多点外的共振频率找到,并找到拟合方程,两种方法找到了共振频率,求出了铜棒的杨氏模量误差很小,验证了这种实验方法的可行性。
Basing on the conventional experiment about dynamic Young＇s moaulus of copper roa,cnangmg expertmental method of receiving signals of receiving end , reflecting resonance frequency of vibration pickup end＇s receiving with the Li Saru graph, by Origin 7.5 Statistical software , it finds many of the points＇resonance frequency of whole copper rod（ except nodes）, it finds the fitted equation, and finds the nodes＇resonance frequency with two kinds of methods. It finds out very low relation error of dynamic Young＇s modulus,which verify the feasibility of the method.
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2013年第4期590-592,597,共3页
Journal of Shandong Agricultural University：Natural Science Edition
