According to the experimental device designed on the basis of the principle of similitude, the longitudinal vibration characteristics of bottom string in straight hole were investigated.
英
美
- 摘要為了了解直井眼中底部鉆柱的縱向振動(dòng)特性，利用根據相似理論設計出的鉆柱動(dòng)力學(xué)模擬試驗裝置，對不同參數組合下的鐘擺鉆具組合縱向振動(dòng)特性進(jìn)行了模擬實(shí)驗研究。
