【作者】 余华俐； 许敬方；

【机构】 兰州工业高等专科学校； 兰石集团；

【摘要】 针对某型石油钻机的大钩,用CAD建立大钩系统的三维有限元模型,采用大型有限元软件ANSYS,对大钩进行了模态分析,得到了大钩系统的固有频率和振型,为今后进行钩体动力响应计算奠定了基础。更多还原

【Abstract】 The dynamic properties and the vibrational response of the petroleum drillwell do affect the diesel engine a lot.As one of the basic analyses,the modal analysis is mainly used to get the dynamic properties of the structure.The 3D finite element model of the petroleum drillwell body is established by the CAD software, and its mode is calculated by the ANSYS,then the premise of the dynamic response of the petroleum drillwell body is established.更多还原