CAJ | 학술논문

文章研究了刚性支承圆柱的顺流向涡激振动特性,在第二激励区域,运用van der Pol方程描述漩涡脱落的尾迹特性,采用尾流振子模型计算圆柱结构的响应,讨论和分析了质量-阻尼参数、质量率和结构阻尼对顺流向涡激振动的影响机理.
문장연구료강성지승원주적순류향와격진동특성,재제이격려구역,운용van der Pol방정묘술선와탈락적미적특성,채용미류진자모형계산원주결구적향응,토론화분석료질량-조니삼수、질량솔화결구조니대순류향와격진동적영향궤리.
The in-line Vortex-induced Vibration (VIV) characteristics of a circular cylinder are investigated.A wake oscillator model is used for the in-line dynamic response prediction in the second excitation region.The near wake dynamics related with the fluctuating nature of vortex shedding is modeled based on the van der Pol equation.The influences of mass-damping parameter,mass ratio and structural damping factor on cylinder in-line VIV are discussed.