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- 運用動(dòng)力間隙元不僅能合理描述鉆柱與井壁的接觸碰撞過(guò)程，還能考慮井壁變形和泥餅的能量吸收，并用Newmark法求解鉆柱動(dòng)力學(xué)平衡方程。This model is solved by dynamics gap element which can not only describe the contact and impact between drilling string and bore hole wall but also present the deformation of bore hole wall and energy absorption of mud cake. The dynamic equilibrium equation is solved by Newmark method.
- 法law
- 可以利用Newmark法求出各時(shí)間離散點(diǎn)的動(dòng)力響應，再利用直接法求解各時(shí)間離散點(diǎn)的伴隨向量（兩者的求解是分離的），從而可得到各臨界時(shí)間點(diǎn)上的靈敏度。The dynamic responses on critical time can be worked out using Newmark method, and the adjoint vector can be worked out using direct method (the solving of responsesand adjoint vector is separate), then we can get the sensitivity on critical time.
- 無(wú)法unable
- 根據Davenport脈動(dòng)風(fēng)速譜函數與日本規范中提出的橫風(fēng)向脈動(dòng)風(fēng)力譜系數函數模擬的順風(fēng)向與橫風(fēng)向脈動(dòng)風(fēng)壓時(shí)程,采用Newmark法計算了一棟高68m的高層建筑物的風(fēng)振扭轉動(dòng)力反應時(shí)程。A method for evaluating the wind induced torsion vibration on rectangle high rise buildings is presented with simulation of the process of wind pressure fluctuation in this paper. The fluctuating pressures both in the along wind direction and in the across wind direction are simulated according to Davenport spectrum density function and the fluctuating pressure spectrum density function specified in Japanese building code.
- 用法usage
- 說(shuō)法statement
- 輸入法input method
- Newmark方法Newmark method
- NewMark-βNewMark-β
- 除法division
- Newmark分析模型Newmark analytical method
- 分析法analytical method
- Newmark積分方案Newmark integration algorithms
- 商法commercial law
- Newmark-β方法Newmark-β method
- 行政法administrative law
- Newmark滑動(dòng)體位移模型Newmark displacement
- 賓夕法尼亞Pennsylvania
- 讀法pronunciation
