CAJ | 학술논문

为求解结构动力响应，提出了一种新的逐步积分方法。通过五次的B样条插值在局部时间域上对位移、速度和加速度进行离散，给出了逐步逆推的计算格式。通过双参数控制算法的稳定性和计算精度。该方法具有自起步、无中间计算环节的特点。数值实例表明，本文算法的精度很高，明显优于Newmark法、Wilson法。
위구해결구동력향응，제출료일충신적축보적분방법。통과오차적B양조삽치재국부시간역상대위이、속도화가속도진행리산，급출료축보역추적계산격식。통과쌍삼수공제산법적은정성화계산정도。해방법구유자기보、무중간계산배절적특점。수치실례표명，본문산법적정도흔고，명현우우Newmark법、Wilson법。
In order to calculate structural dynamic response , a new step-by-step integration is presented .The step-by-step recursion method is deduced on the basis of uniform quintic B -spline interpolation of nodal displacement , velocity, and acceleration within a local time domain .Two parameters are introduced to meet good stability and accuracy .The proposed method has advantages of self-starting and no middle computational procedure .The numerical results and the comparison with Newmark and Wilson method show this method possesses high calculation accuracy .