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混合有限元技术,最初由 Pudensi 和 Ferreir(1982)首次提出,Chew 等人(1983,85)将其进一步发展.在水平层被对称径向层状地层贯穿时,该技术用于计算 NMD(随钻测量)射频的测量探测器(Rodney等人1983)的电磁响应.根据用于径向属状地层的模态有限元建立方程。模式匹配技术(Kong,1975)用于耦合水平层间的场。用该方法得的数字结果与实验数据以及一些极限状态吻合得很好。
Hybrid finite element techniques, first proposed by Pudensi and Ferreir (1982) and further developed by Chew et al. (1983, 85), are used to calculate NMD as a horizontal layer is penetrated by symmetrical radial laminar formations Drill Measurement) The electromagnetic response of a radio frequency measurement probe (Rodney et al., 1983). The equations were established according to the modal finite element for the radial geomorphic formation. Pattern matching techniques (Kong, 1975) are used to couple fields between horizontal layers. The numerical results obtained by this method are in good agreement with the experimental data and some limit states.