摘要
对变扰力线位移幅频响应曲线的特性作了分析。根据特性式说明4个主要点即2个峰点、切点、拐点之间的关系,用阻尼比表示,可互作检验,是为新要求。算例表明,该特性在地基阻尼比中应用的测试值与理论值相吻合,测试精度高。
By analyzing the characteristic property of liner displacement amplitude-frequency response curve produced by frequency-dependent force excitation,the equations of characteristic property are shown,and four main points are given,namely,two peaks,tangent point and inflectional point in the curve.The inter-relations indicated by damping ratio among them are presented,and each parameters being respected is a new requirement.The subsoil damping ratio is well applied in test example.
出处
《桂林理工大学学报》
CAS
北大核心
2014年第2期287-290,共4页
Journal of Guilin University of Technology
关键词
特性
峰点
切点
拐点
characteristic
peak point
tangent point
inflectional point
