摘要
用概率统计与结构动力学理论相结合的方法研究了石油井架在风荷载作用下的随机响应。根据首次超越概率理论,分别用Poisson公式和Vanmarcke修正公式求得了3200m前开口井架的动力可靠度,用计算实例证明了此方法及计算程序的可行性。
Tbe random response of drilling derricks under the action ofwind load was studied by using the probabilistic method and the theory of structure dynamics. Based on the first excursion probability, the dynamic reliability of a drilling derrick for a 3200 meter well was obtained by using the Poisson method and modified Vanmarcke equation. A computer program based on this method was used in a real derrick calculation.
出处
《石油大学学报（自然科学版）》
CSCD
1990年第6期42-43,共2页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
井架
石油
风荷载
随机振动
Derrick
Wind loading
Random vibration
Power spectrum
Standard deviation
Dynamic reliability
