運動學導數 的英文怎麼說
中文拼音 [yùndòngxuédǎoshǔ]
運動學導數
英文
kinematical derivative- 運 : Ⅰ動詞1 (物體位置不斷變化) move; revolve 2 (搬運; 運輸) carry; transport 3 (運用) use; wield...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 導 : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
- 數 : 數副詞(屢次) frequently; repeatedly
- 運動 : 運動[舊時用語] arrange things or get things done through pull
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In this paper, ackerman steering linkage of double - wishbone suspension is taken as the study object, choosing the splitting joint and steering lever joint to carry out the design of optimization the mathematics models are established based on the multi - body system dynamics, applying its analysis method of kinematics to study the mechanism kinetic principles owing to more spatial factors considered, and calling off many hypotheses affecting the accuracy, compared with the traditional methods, the models are better to reflect the realistic motion principles, the results are more exact and applicable moreover, the force analysis is applied to the conduct mechanism the analysis method of dynamics in the multi - body dynamics is applied to study the forces applied on every component, working out the constraint reaction force of up and down ball joints, and developing the current computation program in the end, produce the upper wishbone geometry model in the ansys software package, meshing and carrying out the fea, testifying if the intensity of the wishbone meet with the requirements
本文以雙橫臂獨立懸架的轉向傳動機構作為研究對象,選擇對斷開點和節臂球銷的位置進行優化設計,在此基礎上建立了基於多體系統動力學的導向機構和轉向傳動機構的數學模型,運用該學科的運動學分析方法研究機構的運動規律,編制了通用優化設計軟體。由於考慮了更多的空間因素,取消許多影響準確性的假設,因此建立的數學模型與傳統的方法相比更能反映實際運動規律,得到的優化結果也更加精確實用。此外,本文還針對導向機構進行受力分析,在建立該機構的空間動力學模型后,運用多體動力學中的動力學分析方法研究各個桿件的受力,計算出上下球鉸的約束反力,並開發出了相應的通用計算程序。In order to investigate the variety of some of the initiatory kinematics parameters, the author first computes the underwater trajectory of the submarine launched missile carrier
為了摸清分離體在分離時刻的初始運動學參數可能的變化范圍,首先計算了導彈運載器的水下彈道。The equations of workspace boundary surfaces for double - octahedron variable geometry truss pmts are derived based on surface analysis method. the projection and section curve grapha of workspace boundary surfaces for double - octahe
推導出了zrps ztps型及m 3tps型並聯機床運動學分析的一階和二階影響系數矩陣,得到了其運動學模型。Directed by wave theory of fractured media, the elastic parameters of eda medium are determined in the light of hudson - fractured theory, and christoffel equation gives the formula of the phase velocity of p - wave by which, effects of velocity on behalf of kinetic characteristic and reflection coefficient on behalf of dynamical characteristic form fractured density and azimuty is discussed
本文以裂隙介質的波動理論作指導,根據hudson裂隙理論,求出eda介質的彈性參數。在此基礎上,應用christoffel方程求出的地震縱波相速度表達式,探討了裂縫密度和裂隙方位對代表波場運動學特徵的縱波速度和代表波場動力學特徵的反射系數的影響。The differential equations of rigid body compound motion in analytical form were derived. the approach to solve dynamics equations one by one and corresponding means to analyze drive force were submitted, which was the basis for further study on kinematics and dynamics of the mechanism
著重論述了反三角函數唯一值的求解方法,推導了解折形式的剛體復合運動微分方程,提出動力學方程組逐次求解的方法和與之配套的驅動力分析方法,為后續的運動學和動力學分析奠定基礎。Based on the general mathematical models of multibody system dynamics such as the kinematics models of multibody dynamical systems, the ordinary differential equation models and the differential algebraic equation models of dynamics, general forms of the sensitivity equations of the systems are deduced by using direct differentiation method and adjoint variable method
基於通用的多體機械繫統運動學數學模型,常微分方程形式的動力學數學模型、微分/代數方程形式的動力學數學模型分別採用直接微分方法、伴隨變量方法推導出了系統的狀態靈敏度方程的通用形式。對于微分/代數形式的數學模型Abstract : guiding accuracy of casting mould depends on structure and oscillation parameters, such as elastic deformation of guiding leaf - springs, play of bearings between linkages, stroke and frequency of mould oscillation, etc. in this paper, these factors are studied by means of kinetic and dynamic analysis of oscillating mechanism
文摘:通過對連鑄機結晶器振動機構的運動學和動力學分析,研究了導向板彈簧的彈性變形、連桿軸承間隙等結構參數及振幅、振動頻率等運動參數對結晶器仿弧誤差的影響。Finally, the values of kinematic parameters in typical swimming are estimated for theoretical calculation and computational simulation. based on the kinematic formulation, this paper applies large - amplitude elongated body theory to propulsive performance of undulatory dorsal / median fins and establishes a set of equations for estimation of the propulsive force and the propeller efficiency. the calculations based on experimental data coincide with blake ’ s result in 1980
從波動運動的參數方程出發,本文基於大擺幅伸長體理論對背鰭/背臀鰭波動模式的推進性能進行了分析,推導推進力和推進效率的計算公式,利用實驗觀測典型運動參數對仿生對象的推進力和推進效率進行了理論估算,結果與blake的計算結果相吻合,從而驗證了所建運動學模型的有效性。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。Borrowing the traditional two - speed approach originally developed in conventional attitude integration, we design one new numerical integration algorithm to solve the three kinematic equations. the new navigation algorithm based on dual quaternion is thus constituted
借鑒成熟的姿態四元數積分的雙速演算法結構,設計了一個數值積分演算法求解以上三個運動學方程,構建了基於對偶四元數的捷聯慣性導航演算法。The error compensation software for cam precision grinding has been developed, and results show that the cam grinding accuracy can be ensured and the productive can be improved. ( 1 ) by using the method of movement error analysis of mbs, the geometric error model of sk - 21 nc machine tool has been established, and the calculation equation for precision processing of nc machine tool has been derived, which lays a good foundation of programming the error compensation software
基於該磨床目前的狀態和已有的研究成果,本課題展開了以下主要研究工作: ( 1 )以多體系統運動學理論為基礎,建立精確的sk - 21數控凸輪磨床運動模型,全面考慮各項結構誤差和運動誤差對加工精度的影響,推導出精密加工約束條件方程,揭示機床實精密加工的實質。The reason to creates this kind of destruction to be very many, the main of them is that the apron partially has not been able fully to display it to eliminate energy affect so causes the ditch bed to wash out, forms flushes the pit, leading to the apron, to guard against flushes the trough and both banks slope protection destruction, for a long time, disappear power design of plunge basin and layout have been focused on disappear power. but not to give the enough value on uses the sea to inundate the section to disappear power and adjust speed to reduced downriver washes out
水閘閘下沖刷破壞的部位絕大多數發生在消力池下的海漫和防沖槽處,造成這種破壞的原因很多,其中很大一部分是由於海漫部分未能充分發揮其消能作用而引起渠床沖刷,形成沖坑,導致海漫、防沖槽及兩岸護坡的破壞。一直以來,人們把消能的研究重點放在消力池的消能設計及平面布置上,而對海漫段消能及調整流速功能研究甚少,至於對海漫加糙水流運動建立數學模型,在國內外還很少見相關的論文資料。During the processing system development, firstly, set forth the methods, importance and two recently formulas of hydrodynamic derivatives. secondly, based on the mmg module the maneuvering motion equations are established for the ship in still and deep water. to compile and run the program, the calculation results compared with the experimental data
本論文首先簡述了獲得水動力導數的方法、重要性和兩種新的估演算法,接著運用mmg分離型船舶運動數學模型,建立了深水、靜水域的船舶操縱運動方程,並編制計算程序,將試驗結果同數值計算結果相比較,獲得較為滿意的結果。The characters of bank - to - turn control technology determine that the btt missile ' s mathematical model having kinematical coupling, aero dynamical coupling, inertial coupling and control coupling. so the widely used stt missile ' s autopilot, which is designed to be three - channel independent ca n ' t meet the btt missile ' s control need
Btt控制技術的控制特點決定了btt導彈的數學模型存在運動學耦合、氣動耦合、慣性耦合和控制耦合等多種耦合因素,因此目前側滑轉彎( stt )導彈廣泛採用的自動駕駛儀三通道獨立設計方法已不能滿足btt導彈控制系統的設計要求。Kinematic analysis for main feed mechanism of 1ps + 4tps type hmt is done through establishing kinematic equivalent model, one and two order effect coefficient matrixes for main feed mechanism are derived. free - surfaces are fitted and sculpted based on nurbs ( non - uniform rational
通過建立運動等效模型,對新型混聯機床的主進給機構進行了運動學分析,推導出了一、二階運動影響系數矩陣規格化的表達式。Based on chinese tracking and data relay satellite ( ctdrs ) in the future, the antenna pointing control and complex control theory of user satellite are studied deeply in this dissertation, which is funded by the improve item of dept. of astronautic engineering and mechanics ? “ the teaching demonstration of antenna pointing control system in tdrss ”. the main contents of this dissertation are consisted of the following parts : firstly, dynamics equation is derived using lagrange equation for user satellite, so as the kinetics equations of user satellite at the same time are expressed in the form with matrix differential equations that is suitable for attitude control system design and analysis
本學位論文結合航空宇航科學與技術學科研究生教學基地實驗室建設項目「中繼系統星間鏈路天線指向控制系統教學與演示實驗」 ,以我國跟蹤與數據中繼衛星系統為背景,對某型號用戶星星間鏈路天線指向跟蹤控制和復合控制理論進行深入的研究,研究內容主要包括以下幾個方面: 1 .利用lagrange方程建立了用戶星的動力學方程,同時推導了運動學方程,並將這組動力學方程以矩陣微分方程形式表示,使之適用於姿態控制系統的設計和分析。Subsequently, the waves induced forces and their driven effects on currents are studied in detail. in the discussion of the effects of currents on waves, according to the wave radiation theory and the law of wave action conservation, the equivalence of none vorticity condition of the vector of wave number in constant wave field and fermat theory is testified. the dynamic and kinematics effects of background currents on waves are introduced concisely
在流對浪的作用討論中,依據波動的射線理論和由變分原理導出的波作用量守恆定律,闡明了穩定波場波數矢量的無旋條件與費馬原理的等價性,扼要討論了背景流場影響海浪的運動學效應和動力學效應,首次指出水位(包括天文潮位與風暴潮位)變化對海浪成長與消衰的影響,為流浪潮聯合數值模式的發展提供必要的理論依據。It might seem surprising that any mathematical derivation based on the kinetic theory could be simple.
令人驚奇的是,基於分子運動論的數學推導都是簡單的。Use the magnetic vector for the observation information, the paper estimate the location and rate of the satellite, analysis of simulation results and the sources of error. to further enhance navigation accuracy, the paper study the unscented kalman filter, compare with the extend kalman filter. in the same initial conditions of the extend kalman filter, we do the simulation
其次,基於磁環境模擬系統的測量數據,本文研究了擴展卡爾曼濾波演算法,建立了衛星的運動學和動力學方程,以地磁場矢量為觀測信息,對衛星位置速度進行了估計,並分析了模擬結果及誤差來源,為了進一步提高導航精度,本文又研究了unscented卡爾曼濾波演算法,給出了原理及步驟,並與擴展卡爾曼濾波進行了比較分析。1. through reinterpreting the rationale of the strapdown inertial navigation in terms of dual quaternion algebra, we obtain three dual quaternion kinematic equations that take the same forms as the conventional attitude quaternion rate equation
1 .運用對偶四元數代數重新詮釋捷聯式慣性導航的基本原理,得到了三個對偶四元數運動學方程,其形式均與姿態四元數微分方程一致。分享友人