CAJ | 학술논문

基于CFRP斜拉索横向各向同性假设的动力学理论，研究在强迫荷载作用下CFRP斜拉索的面内非线性动力学行为。将 CFRP 斜拉索的空间动力学控制微分方程约化处理得到面内运动控制微分方程，通过无量纲处理后，利用 Galerkin 方法进行一阶模态截断，得到CFRP斜拉索在强迫激励下面内运动常微分控制方程。利用4阶龙格库塔法对微分方程进行数值积分，得到在不同激励荷载作用下 CFRP 拉索的时间历程图、相图和功率谱图，进而对其非线性动力学行为进行研究。研究结果表明，在强迫激励下 CFRP 斜拉索有较为丰富的非线性动力学行为。
기우CFRP사랍색횡향각향동성가설적동역학이론，연구재강박하재작용하CFRP사랍색적면내비선성동역학행위。장 CFRP 사랍색적공간동역학공제미분방정약화처리득도면내운동공제미분방정，통과무량강처리후，이용 Galerkin 방법진행일계모태절단，득도CFRP사랍색재강박격려하면내운동상미분공제방정。이용4계룡격고탑법대미분방정진행수치적분，득도재불동격려하재작용하 CFRP 랍색적시간역정도、상도화공솔보도，진이대기비선성동역학행위진행연구。연구결과표명，재강박격려하 CFRP 사랍색유교위봉부적비선성동역학행위。
Based on the assumption of transversely isotropic property of material,the nonlinear in-plane dynamical behavior of CFRP cable under forced load was investigated.The partial differential equation for in-plane dynamics of the inclined CFRP cable was obtained by reducing spatial kinetic theory.Then,the ordinary differential equations for analyzing the dynamic behavior were obtained in Galerkin method and through dimensionless treatment.The 4-order Runge-Kutta method for differential equations was utilized to get the time history,phase and power spectrum for understanding the nonlinear dynamic behavior of in-clined CFRP cable.The rich nonlinear dynamic behavior and phenomena were observed.