duhamel 中文意思是什麼
duhamel
解釋
迪阿梅爾-
U. s. air force master sergeant epps ( tyrese gibson, left ) and special forces army ranger sgt. lennox ( josh duhamel, right ) are on patrol in qatar
美國空軍中士愛普斯（泰瑞茲?吉布森飾，居左）和特種兵突擊隊中士利諾克斯（喬希?杜哈梅爾飾，居右）正在卡達巡邏。 -
Based on the unified recursive formula, the four algorithms included in this study are the central difference method, the newrnark ' s method, z - transform method, and duhamel ' s step integral method. the accuracy, the phase and other existent problem are studied in this paper. it is proved in this paper that the recursive parameters b1and b2are relate to the poles of theoretical transfer function
分析中可以發現，中心差分方法， newmark中點加速度方法、 z變換方法及duhamel逐步積分法在精度范圍內其計算相位是沒有畸變的，中國地震局工程力學研究所頃土學位論文一但是中心差分方法， newmark中點加速度方法隨著采樣間隔及系統自振頻率的增大，系統的固有自振周期被改變，其傳遞函數的共振區域與理論傳遞函數的共振區域會發生分離。 -
A new step - by - step integral procedure of dynamics equations is presented. the general expression of the solution of dynamics equations is obtained on the basis of the homogenous analytical solutions of dynamics equations and duhamel integration. the explicit analytical integration algorithm, which is characterized by fourth - order accuracy, self - starting and self - correcting, is employed to discretize the equivalent load terms
另外提出了求解動力學方程的一個新型的逐步積分法，基於線性動力學方程的解析齊次解及duhamel積分，構造出適用於非線性動力學方程解的一般積分表達式，對包含非線性項的非齊次項採用插值近似的方法，得到一個單步顯式、自起步、預測校正具有四階精度的解析逐步積分演算法。 -
The thermal process model of imbed pipe floor heating room at intermittent operation was set up by analyzing the thermal storage of enclosure. then, a solution method was give for it basing on duhamel theorem. the calculation results shown a good indoor thermal environment can be hold when the system, which designed on out door temperature for heating basis, operates half day in night under outer door mean temperature in winter
對典型房間的計算結果顯示:系統間歇運行時，供暖系統開啟和關閉后室內溫度呈指數規律變化;當系統按供暖室外計算溫度設計，實際運行日的室外平均溫度等於供暖期室外日平均溫度時，在室外逐時溫度較低的時段低溫熱水地板輻射供暖系統運行半天左右可滿足全天供暖室內計算溫度要求。 -
The precision duhamel integration solution for the linearization equation is also given from the theory of linear differential equation. the calculating results show that the new method can improve the calculation precision greatly. in fact, the truncation error is not limited by this method, it can arrive the precision according to the requirement
本文的主要工作有以下幾個方面: （ 1 ）由於非線性項的存在，使得多數情況下難以得到非線性動力方程的解析解表達式，目前常使用數值積分方法來求解非線性動力學方程的解，但常規計算方法的計算精度不很理想，本文提出了含taylor展開項中高階余項的非線性動力方程的線性化數值計算方法，構造了瞬態線性化方程，給出了duhamel積分的表達式。
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