virtual velocity 中文意思是什麼
virtual velocity
解釋
假想速度-
The measurement system of projectiles initial velocity based on virtual instrument technology
基於虛擬儀器技術的彈丸初速測量系統 -
The design of cannon - shot muzzle velocity instrument based on labview and virtual instrument techonlogy
一種基於虛擬儀器技術的彈丸初速度測試儀的設計 -
Finally, in consideration of the characteristics of the differential balance mechanism, a more accurate virtual prototype of the mechanism is established and the simulation is carried out in the software environment of adams. the angular velocity curves of the relevant parts and the natural frequency of the mechanism are got. the results may be helpful to the improvement and the application of the mechanism
最後，綜合考慮了輪齒嚙合剛度、搖臂軸扭轉柔性及齒輪傳動回差對差動平衡機構的影響，建立了能夠比較完整地反映該機構動態特性的虛擬樣機模型;在adams軟體環境下，對差動平衡機構的虛擬樣機模型進行了動態模擬，得出了能反映該機構動態特性的關系曲線，並確定了其固有頻率，為該機構的改進及其在月球車上的實際應用提供了參考依據。 -
Firstly, based on the present research all over the world, a 3d quasi - single phase model is built together with k - equations. the special feature of this model is taking account of the influence of interaction between liquid and gas, that is to say, the influence of interphase drag force, lifting force perpendicular to the relative velocity, virtual mass force and gas or liquid volume fraction in the fluid field have been considered. a 3d two - fluid model is also built in order to describe more accurately the fluid flow on distillation trays by comparing the computational results of quasi - single phase mathematical model with of two - fluid mathematical model
本文在國內外已有的研究基礎上，首先建立了以k - （封閉模型為基礎的三維擬單相流模型，該模型的特點在於充分考慮了氣液兩相間相互作用的影響，即計入了相間曳力、橫向升力、虛擬質量力和氣、液相含率對流場的影響；並建立了塔板三維雙流體模型，主要目的是通過對比擬單相流數學模型、雙流體數學模型的計算結果，建立能夠準確描述塔板上流體流動的數學模型。 -
Virtual instruments technology was applied to build the measurement and control system and develop the software for the experiment, which improve the efficiency of the study. finally the velocity control experiment of sapc at several flight states was accomplished which has a good effect. the study has certain significances on developing electronic - electric cpcs
構建基於虛擬儀器技術的測控平臺，採用labview軟體開發測控軟體，利用實驗室的現有條件，結合某型電子/氣動式壓調器的實驗，完成了飛機在各種飛行狀態下所需的大氣壓力模擬艙內的壓力控制，取得了較好的效果。 -
2. virtual technology in this section, firstly, introduce virtual instrument development and analyze the main principles in tractor testing projects ( including shaft mass, left - and - right side trigging forces, smoke density, noise and velocity ). secondly, propose a general design combined multifunction data acquisition devices ( daq ) with lab view diagram language
（ 2 ）虛擬儀器技術介紹了虛擬儀器的發展特點，分析了拖拉機主要的檢測項目（軸重、左右制動力、煙度、噪聲、速度）的檢測原理和手段，提出一套基於多功能數據採集卡daq和圖形化編程語言labview的虛擬儀器構建方案。 -
Secondly, i applied the method of matrix analysis to build up mathematic model of swaying platform, and solved the question of motion anti - solution, velocity and acceleration. then i analyzed the dynamics problems of the swaying platform. based on the calculation of the swaying platform ’ s force and moment, built up the dynamics equations of swaying platform by using virtual work principle
其次，應用矩陣分析和齊次坐標變換建立了搖擺臺的運動學數學模型，從反運動學的角度分析了搖擺臺的位置、速度和加速度的反解方程;分析了搖擺臺的動力學問題，通過對搖擺臺的驅動桿進行附加力和附加力矩計算，並利用達朗貝爾原理和虛功原理，建立了搖擺臺的動力學方程。 -
The paper depicts the elasticity with euler form and associates the form with depiction of behavior of fluid. the method takes the velocity as basic variables and then derives the left - deformation tensor from the velocity in order to deal with the time - independent motion. at last in this chapter the equations of the finite flow - element are set up from the principle of the virtual work
首先建立流管元的概念，對彈性固體相關的部分採用euler描寫，並融入流體行為的描寫中；以速度為變量，反推左變形張量，用於處理流固物質的定常運動，給出了控制方程和相應的變分式；以此為基礎發展了一套相應的有限流管元演算法。 -
In the paper, based on the method of low pair replacing with high pair, the problem of cam design was transferred to that of linkage design. by means of rotary unit vectors, the equations of displacement, velocity and acceleration of the replacement mechanisms were developed. and then, the virtual linkage ' s length and direction were deduced
論文基於高副低代原理，將平面凸輪機構設計與再現函數的平面連桿機構設計統一為同一種方法，運用圓向量函數建立代換機構的位移、速度、加速度矢量方程式，求取虛擬連桿桿長和方向，由此展開凸輪理論廓線、實際廓線、曲率半徑和壓力角的求解，並得出用圓形刀具加工凸輪時刀具中心的軌跡方程。 -
Study on virtual punch velocity in simulation of sheet metal forming by explicit method
薄板成形模擬動力顯式演算法的虛擬凸模速度分析 -
3. the project using ins / gps system data to estimate the angle of attack and sideslip is brought forward first. this project using the ins / gps system data, such as acceleration and velocity signal, and others signals of the aircraft, such as gyros and the mathematic models, to estimate virtual signal
首次採用ins gps系統數據來估計迎角和側滑角傳感器參數原理和方法，利用ins gps系統測量的地速和總加速度信號結合飛機其他傳感器和數學模型估計得到了迎角和側滑角傳感器的虛擬信號，該種方法具有很好的實時性。 -
In this task, a test _ bed for engineering vehicles was developed based on virtual instrument. the whole system comprised 5 parts : the checking of running velocity, which was gotten on the test bed through the vehicles simulating real road running ; the temperature checking of the important points on the transmission system ; the temperature checking of the circling cooling water on the exit port of dynamometers ; the control of the loading power. which was given to vehicles by the power measuring machine ; the control of the total test - run time
本課題開發的基於虛擬儀器的工程機械跑合試驗臺，其測量和控制參數有：行駛速度檢測（車輛在跑合試驗臺上模擬路面的行駛速度） ；傳動系溫度檢測（試驗車輛傳動系主要部位多點溫度） ；冷卻水溫度檢測（測功機循環冷卻水出口溫度） ：加載功率控制（測功機施加給車輛的載荷） ；跑合時間控制（試驗車輛在試驗臺上加載跑合的總時間） 。 -
This paper introduces a virtual oscillograph v0. 94 for measuring the sound velocity. the result is very precise. it also enriches the classical physics experiment with modern contents
摘要介紹了某于聲卡的虛擬示波器v0 . 94的硬體準備、電腦聲卡設置以及調整和使用方法。利用虛擬示波器測定聲速，形象直觀，實驗結果精確，是經典物理實驗現代化的有益嘗試。 -
The four parameters ( spring inclination a, the frequency of excitation force w, the amplitude of excitation force f, the spring stiffness k ) are the major factors that take great influences on the vibration plate. in order to analyzing the influences of four parameters, the virtual prototype of vibration plate is built in ansys to get inherent frequency from modal analysis. thorough transient analysis in ansys, the curves of displacement n velocity and acceleration is presented
為了分析這四個參數對系統的影響，首先在ansys中建立振動排秧盤的虛擬模型，採用有限元方法對模型進行了模態分析，得到振動排秧機構的固有頻率；同時對模型進行動力學分析，分析排秧盤的振動量、速度及加速度，並得出相應數據的曲線圖；另外，校核了主要元件彈簧的疲勞強度及使用壽命。 -
With the help of adams and simulink ’ s union simulation technology, docking dynamics simulation in the initial conditions ( pose and velocity ) is given. by compare them with the result of the spatial two aerocraft ’ s docking model, principle of loop control system based on dynamics is proofed correct. by compare them with the experiment ’ s result, the virtual prototype model is certified correct
藉助adams與simulink的聯合模擬技術，在給定對接初始條件（位姿和速度）下，進行了對接動力學模擬，並與空間兩飛行器對接的模擬結果進行了比較，驗證了大迴路控制系統動力學控制原理的正確性;與試驗結果進行了比較，驗證了樣機模型的正確性。 -
The virtual robot model is built using pro / e and then the model is transferred to adams using m / pro. two representative robot work mode are simulated and the paper gives the joint angle curves and joint velocity curves
用pro / e軟體建立機器人的虛擬三維裝配模型，利用pro / e和adams之間的無縫連接軟體m / pro將pro / e里的模型導入adams軟體中。 -
User can also insert real - time animate into virtual studio to increase reality by costuming the moving track, velocity and direction of objects in the scene. all of these make rich of our system
進一步，我們根據vrml的實際特點，提出並實現了特定物體場景動畫，虛擬場景交互，這些圖形特級效果大大豐富了我們虛擬演播室的功能。
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