環錐法 的英文怎麼說
中文拼音 [huánzhuīfǎ]
環錐法
英文
coning and quartering-
Following, using the experimental methods, the dynamic response of the stiffened conical shells under cosinoidal impulsive loading is studied. the changes of dynamic response of points along circumferential line of the conical shells are analyzed, and the characteristics of dynamic response of points are studied by both the time - domain analytic method and the frequency - domain analytic method
採用實驗方法研究了加筋圓錐殼在側向餘弦載荷作用下的動力響應,分析了沿環向各點的響應變化,並從時域和頻域分析了它們各點的響應特性。By means of the optimization method - punishing function method and taking the sum of the planet gear radius and center distance as the target function, the parameters of drive are optimized. by using the optimization program, the initial serial studies of drive are completed, the best serial parameter value of the drive is given
採用外點罰函數優化方法,通過取行星輪半徑和中心距之和作為優化目標函數,對滾錐齒超環面行星蝸桿傳動進行了參數優化,運用此優化程序,初步完成了對該種傳動的系列化研究,給出了傳動系列的最佳參數取值。The error criterion is derived from rotation vector concept directly. in the coning motion environment, a class of rotation vector optimal algorithms are derived and evaluated with the rule of making sure of the minimum coning error. 3
從旋轉矢量的概念出發,推導了演算法的精度準則,在典型的高動態環境? ?錐運動作為輸入條件下,以使錐誤差最小為原則,推導了旋轉矢量各階子樣演算法及其優化演算法,並與傳統的四元數演算法進行了比較; 3Abstract : approximate methods for calculating aerodynamic heating rates on space shuttles are discussed. various methods are given for predicting the heating rate at axisymmetric stagnation points, general three dimensional stagnationpoints and the leading edge stagnation point of wings. numerous laminar and turbulent heating techniques for flat plates and cones are analyzed and compared. a brief review of some methods is presented to predict heating rate for winward centerline and lateral direction off the symmetry plane. the results show that the methods are simpler and can guarantee enought precision for predicting aerodynamic heating environment of space shuttles
文摘:介紹了國內外預測航天飛機氣動加熱的工程計算方法.給出了軸對稱、非軸對稱和機翼前緣等各種外形駐點熱流密度的計算,分析和比較了平板、錐體的層流和湍流熱流密度計算的各種方法,概述了航天飛機迎風面中心線和離開中心線橫向熱流密度的計算.計算結果表明,本文方法用在航天飛機氣動熱環境初步設計中比較簡單並且有足夠精度Secondly, the improved rotation vector algorithms in the pure coning motion are discussed and the computing burden is compared with each other. lastly, computer simulations are executed to test the algorithms " performance. the results show that the rotation vector algorithms can improve the precision of the attitude calculation effectively
分析了高動態環境下捷聯慣導圓錐誤差的產生機理,研究了純錐運動條件下姿態更新的旋轉矢量優化演算法,對各演算法的計算量和精度進行了對比,最後對各演算法進行了計算機模擬,模擬結果表明:旋轉矢量演算法能有效提高姿態演算法的精度; 2The duality between the coning and sculling corrections, raised in the recent literature, is fundamentally explained. the superiority of the new algorithm in accuracy is analytically derived. a variety of simulations are carried out to support the analytic conclusions, including those with ideal inertial sensors and those with non - ideal inertial sensors
2 .從多個側面對對偶四元數演算法和傳統演算法進行了理論分析和比較,揭示了傳統演算法中圓錐演算法和劃船演算法之間存在對偶性/等價性的根本原因,導出了對偶四元數演算法和傳統演算法誤差的解析表達式,從理論上證明了在高精度和高動態環境中,對偶四元數演算法的精度將優于傳統演算法。The interference taper assembly of the hub on the shaft is performed hydraulically and at ambient temperature, without dismounting the coupling. other assembly methods are also possible
輪轂與軸的對接錐形裝配採用液壓方式在環境溫度下實現,而不需要對聯軸節進行拆卸。而且還可以採用其它的裝配方法。The error of sins in high dynamic environment is discussed. it is analyzed here that how the coning error, sculling error and curling error occur and the compensating methods of these errors are presents in this paper. 2
高動態環境下捷聯慣導系統的誤差研究,分析了圓錐誤差、劃槳誤差和渦卷誤差的產生機理,並提出了誤差的補償方法; 2The least - squares fitting for regular surfaces, such as planes, spheres, cones, tori to 3d data points is researched. the efficiency of computing is improved greatly and the effect of singularities on fitting is avoided
研究了規則曲面的擬合演算法,給出最小二乘法擬合平面、球面、圓柱面、圓錐面、圓環面等規則曲面的方法,這些方法的顯著優點是提高了計算效率,避免了擬合過程中奇異點的影響。The calculating mold consisted of shell, pyramidal neck of shell with varied thickness, flange of ring with definite thickness for analytic solution is set up for the strength calculation and the design of the structure dimension of shell flange and pyramidal neck. this theoretic solution is compared with the results of finite element analysis and stress - strain measurement and is verified to be right
為設計計算烘缸法蘭及錐頸的強度與結構尺寸要求,建立以簡體、具有斜面的變厚度圓柱殼的錐頸及具有一定厚度圓環的法蘭環為解析解的計算模型,進行應力求解,將該理論解與有限元分析及應力應變實測結果進行分析對比,驗證該解結果的正確性。The impact of the conical scan on range profile is analyzed, and the cyclostationary method is used to estimate and dispel the interference of conical modulation. simulation test results show the method can provide good profile
研究了圓錐掃描測角體制對目標距離維成像的影響,針對低信噪比環境,同樣採用循環平穩方法估計圓錐掃描對信號的調制。4 ) combining the local synthesis method for the machine - tool setting parameters, tca and ltca, and the numerical simulation of stress procedure constructs the optimal design circle with feedback. the developed software system provides an efficient design tool for the spiral bevel gears with excellent transmission behavior, high strength and lower noise
4 )結合加工參數設計的局部綜合法、幾何接觸分析( tca ) 、承載接觸分析( ltca )及應力過程數值模擬,構成了具有反饋的閉環優化設計迴路,並形成了相應的軟體系統,為設計嚙合性能良好、高強度、低噪聲的弧齒錐齒輪傳動提供了有效的工具。分享友人