換圓弧 的英文怎麼說
中文拼音 [huànyuánhú]
換圓弧
英文
arc-
Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle
流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path
本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討，在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型，推導出了一個通用的移動機器人堆積方程，在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解；使用muir和newman的運動學建模方法，推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法；在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析：推導了一種理論精度較高的航位推算演算法，並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬；最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路，較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題；本論文研究成果已在本實驗室所開發的樣機上得到實現，經過應用與考核證明其中的分析與設計是切實可行的。Based on lots of experiments, by combining the progress in mesomechanics with fea computation and analysis, this thesis investigated many parameters " effect on crack with an arc - tip in plain mixed - mode fracture, and compared existing criteria for fracture initiation, fracture direction and fracture mode transition
本文主要的工作是在試驗的基礎上，結合細觀斷裂力學當前的研究進展，通過有限元計算和模擬分析，研究了平面復合型斷裂中各種力學參量對圓弧尖端裂紋斷裂的影響，比較分析了現有的起裂判據、斷裂擴展方向的判定方法以及斷裂模式的轉換條件。Because stl file, the defacto standard file format for the rapid prototyping manufacturing, has a trade - off between the accuracy and file size, a max - fit biarc curve fitting technique to reconstruct stl slicing data with higher accuracy and to decrease the file size remarkably is presented
由於快速成型領域事實上的數據交換標準stl文件格式在其文件大小與精度之間存在著矛盾，從而影響了其加工解析度，為此本文實現了一種最優雙圓弧擬合技術來提高微立體光刻裝置的加工解析度。Robots will have a single call that determines if they want to use degrees or radians, and another call to switch between unit circle math or compass math
機器人將有一個單獨的調用，該調用確定它們是想使用度數，還是使用弧度，而另一個調用在單位圓數學或羅盤數學（ compass math ）間切換。The weighted number of solutions of equation, r ( b ), is expressed as the sum of a integral on [ 0, 1 ] and a remainder term. using the circle method, the integral on the interval [ 0, 1 ] is divided into the integrals on major arcs and minor arcs respectively, j and j. the section 3 gives a transformation for sj ( a ) and simplifies /
把三次方程的加權解個數r （ b ）表示為[ 0 ， 1 ]上的積分加上余項，然後利用圓法，把區間[ 0 ， 1 ）上的積分變成優弧和劣弧的積分和第三節，給出s _ i （ ）的一個變換，並化簡把的主項被分成m _ 1 ， m _ 2和m _ 3The on - line stroke recognition algorithm can recognize the rough strokes and transform them into three basic geometric line - elements, including straight line, arc and b - spline
筆劃的在線識別主要是將原始筆劃轉換為規則的基本幾何線元，即直線條，圓弧，和樣條曲線。分享友人