电子器件
電子器件
전자기건
JOURNAL OF ELECTRON DEVICES
2014年
5期
887-890
,共4页
载流梁%3次超谐共振%多尺度法%Lorentz力
載流樑%3次超諧共振%多呎度法%Lorentz力
재류량%3차초해공진%다척도법%Lorentz력
current-carrying beam%third superharmonic%thermal-magneto-elasticity%the method of multiple scales%Lorentz force
在磁弹性动力学理论的基础上，应用动力学方法建立电磁场和温度场联合作用下的载流梁的非线性热磁弹性振动方程。应用非线性振动的多尺度法，求得了系统受Lorentz力和温度影响共同作用的3次超谐共振幅频响应方程，并对其进行了数值计算，研究电磁场、温度变化、电流、几何参数等参数对载流梁3次超谐共振响应曲线的影响。结果表明：当温度、磁场强度、长度、横截面积达到特定值时，系统振幅会大幅增加。
在磁彈性動力學理論的基礎上，應用動力學方法建立電磁場和溫度場聯閤作用下的載流樑的非線性熱磁彈性振動方程。應用非線性振動的多呎度法，求得瞭繫統受Lorentz力和溫度影響共同作用的3次超諧共振幅頻響應方程，併對其進行瞭數值計算，研究電磁場、溫度變化、電流、幾何參數等參數對載流樑3次超諧共振響應麯線的影響。結果錶明：噹溫度、磁場彊度、長度、橫截麵積達到特定值時，繫統振幅會大幅增加。
재자탄성동역학이론적기출상，응용동역학방법건립전자장화온도장연합작용하적재류량적비선성열자탄성진동방정。응용비선성진동적다척도법，구득료계통수Lorentz력화온도영향공동작용적3차초해공진폭빈향응방정，병대기진행료수치계산，연구전자장、온도변화、전류、궤하삼수등삼수대재류량3차초해공진향응곡선적영향。결과표명：당온도、자장강도、장도、횡절면적체도특정치시，계통진폭회대폭증가。
Based on the electro-magneto-elastic theory, nonlinear vibration equation of current-carrying beam in thermal-magneto-elasticity field is studied. The Lorentz force and temperature effect on the beam are derived. According to the method of multiple scales for nonlinear vibrations the amplitude frequency response equation of third superharmonic resonance is obtained. The effects of electro-magnetic and mechanical parameters on system res-onance characteristics are analyzed. The results show the amplitude of system will substantially increase when the temperature,magnetic field intensity,length,cross-sectional area reach their certain values respectively.
