山东农业大学学报（自然科学版）
山東農業大學學報（自然科學版）
산동농업대학학보（자연과학판）
JOURNAL OF SHANDONG AGRICULTURAL UNIVERSITY(NATURAL SCIENCE)
2010年
1期
125-128
,共4页
动态杨氏模量%铜棒%共振频率%悬挂点%统计%拟合
動態楊氏模量%銅棒%共振頻率%懸掛點%統計%擬閤
동태양씨모량%동봉%공진빈솔%현괘점%통계%의합
Dynamic Young's modulus%copper rod%resonant frequency%suspension points%statistic%fitting
本文以动态杨氏模量实验~([1])为基础,探讨铜棒在室温环境下动态杨氏模量的大小,采用增加悬挂点数目、用游标卡尺测量悬挂点位置、用Origin 7.5统计软件~([2])统计,拟合出铜棒发生共振时,共振频率与悬挂点相对位置的散点图、拟合方程、拟合曲线,并求出了相对误差很小的铜棒的动态杨氏模量大小,反映出此方法的优势.
本文以動態楊氏模量實驗~([1])為基礎,探討銅棒在室溫環境下動態楊氏模量的大小,採用增加懸掛點數目、用遊標卡呎測量懸掛點位置、用Origin 7.5統計軟件~([2])統計,擬閤齣銅棒髮生共振時,共振頻率與懸掛點相對位置的散點圖、擬閤方程、擬閤麯線,併求齣瞭相對誤差很小的銅棒的動態楊氏模量大小,反映齣此方法的優勢.
본문이동태양씨모량실험~([1])위기출,탐토동봉재실온배경하동태양씨모량적대소,채용증가현괘점수목、용유표잡척측량현괘점위치、용Origin 7.5통계연건~([2])통계,의합출동봉발생공진시,공진빈솔여현괘점상대위치적산점도、의합방정、의합곡선,병구출료상대오차흔소적동봉적동태양씨모량대소,반영출차방법적우세.
Basing on the experiment about dynamic metal Young's modulus of copper rod,it discusses the numerical value of dynamic Young's modulus of copper rod in the condition of room temperature.It increases the number of suspension points、measures the locations of suspension points by vernier calipers、stats the data by Origin 7.5.It fits the scatter diagram、fitted equation、fitted curve between resonant frequency and relative suspension points when it comes into being resonance .It brings off very low relation error of dynamic Young's modulus of copper rod ,which response the superiority of the method.
