轉差試驗 的英文怎麼說
中文拼音 [zhuǎnchāshìyàn]
轉差試驗
英文
slip test-
Because it is impossible to adjust the air bearing absolutely balance, the difference between mass center and rotation center must lead to a notable gravity disturbance torque. in the process of identification, modeling and identification of gravity disturbance torque is considered, and an extended kalman filter is educed for identifying air bearing inertia matrix and gravity disturbance torque, and then the algorithm is validated
由於氣浮臺平衡調試方法和手段的限制,實驗過程中氣浮臺質心與轉動中心有一定的位置偏差,必將導致較大的重力干擾力矩,在辨識演算法的推導過程中,重點考慮了重力干擾力矩的建模和參數辨識問題,推導了氣浮臺的轉動慣量和重力干擾力矩辨識的擴展卡爾曼濾波演算法,並對演算法進行了數學模擬和全物理模擬驗證。Reliability experiment method for tv transmitter and transposer
電視發射機差轉機可靠性試驗方法Rotary shaft lip type seals for automobils ; test ; determination of cold resistant of elastomers ; differential - thermoanalysis
汽車用唇型旋轉軸密封環.試驗.彈性體耐寒性能測定.差Developing the model which complies with the wheel trace coincidence of a steering full - trailer ; performing simulating tests and errors analysis
設計製作了符合輪跡重合轉向全掛車的模型,並進行了模擬試驗及誤差分析。Consider to simplifying the process of calibrating dynamic error parameters of accelerometer and shortening the time of calibrating test, all dynamic error parameters are calibrated at one - time, based on the mathematic model of dynamic error of accelerometer and integrating the model and the testing theory of the three - axis turntable, meanwhile, the angle - vibration table is avoided
摘要為了簡化加速度計動態誤差系數的標定過程,縮短標定試驗時間,在建立加速度計動態誤差數學模型的基礎上,結合三軸轉臺模型及測試原理,一次性標定出加速度計動態誤差系數,同時避免了角振動臺的使用。Material composition appears, and reading material in - put makes the chinese test change from two - dimensional construction to three - dimensional construction ( chinese knowledge, reading and composition ). graduation tests departing from entrance tests, exploration of the standardized test, weakening the chinese knowledge, the researches of controlling error of judging composition, pattern set " 3 + x ", judging test papers on net, and experiments of spring and summer university entrance test. all the above, having made remarkable achievements, make the current chinese test more modernizing and scientific
供料作文的出現,閱讀內容的增加使語文試卷由二維結構到三維結構的轉變,畢業會考與升學考試的分離,標準化考試的探索,語文知識考試的淡化,對語文能力測試的重視,作文評分誤差控制的研究以及高考「 3 + x 」科目設置試驗,網上閱卷和春夏兩季招生考試試驗等都為語文考試現代化、科學化作了有益的嘗試,也取得了顯著的成就。As far as the system observation for accuracy evaluation of carrier rocket is concerned, there may exist different types of observed data and priors. heterogeneous information means that the different information describing the different characteristics of the same object. since all of the information is relevant to the same object, the fusion is possible. it is a key problem that how to fuse the heterogeneous information to obtain the better evaluation result. therefore, the different heterogeneous information and data is thoroughly studied, moreover, the mathematical description for information fusion of different parameter priors and data is constructed in this paper. based on their relationship between different parameters, indirect prior and observation data is transformed into prior in impact point observation space, which is fused with original prior by weight determined by maximum entropy rule to obtain the mixed posterior distribution. therefore, the test results can be given by combining posterior distribution and impact error observed data. then its application on evaluating guidance systematic error is elaborated as it applies trajectory tracking data, test value of coefficients of guidance instrumentation systematic error, impact point observation data and prior. especially, the advantage of this method lies in its application in case that guidance instrumentation systematic error may not be computed precisely. finally a detailed example on evaluation of carrier rocket is given to verify the theory
為充分利用運載火箭觀測中的不同觀測空間和過程的信息來進行精度評估,針對該背景建立了異質先驗融合的數學描述.研究了飛行試驗中不同觀測空間和過程的異質先驗信息和數據,基於不同觀測過程的解析關系,將間接過程的先驗和觀測數據算出的后驗分佈轉換成落點觀測空間上的先驗,與原落點的先驗進行了最大熵加權融合,得到混合后驗分佈,從而結合落點觀測數據給出評定結果.在無法解算出精確的制導工具誤差系數的情況下,這種方法充分利用了彈道跟蹤數據、工具誤差系數的地面測試先驗值、落點先驗及落點數據,穩健性更好,準確性更高Through establishing three mathematics models including the movement equation of the mechanical and electrical transmission system, the control of the load and the sliding in stable status, direct - current - brake of ac motor, this paper ascertained the range of the frequency value of drive motor and the efficiency of transmission system, calculated the efficiency of load motor in stable status and the moment of load motor in braking. this paper completed the design of the mechanical part of inertia brake test platform and provides a tool for the measurement of the inertia brake parameters
本文還通過建立慣性制動器試驗臺的包括機電傳動系統的運動方程、穩態運行時負載與轉差率控制、交流電動機直流制動在內的三個數學模型,確定驅動電機的頻率取值范圍和傳動系統的傳動效率,驗算慣性制動器穩態運行時負載電機軸功率和慣性制動器制動時負載電機軸力矩,完成慣性制動器試驗臺設計中的機械部分,為慣性制動器各參數的測量提供工具。Based on slip frequency control strategy for the mutual - feed test bed, it is studied the regulation of traction motor speed as well as the analog load resistance torque with analog load
摘要針對互饋試驗臺,基於轉差頻率控制策略,研究了牽引電機側速度的調節和負載模擬側阻力矩的調節。Firstly, the experimental phase current and input power data obtained from load test are employed to estimate the parameters in ii rated condition. then, the phase current and input power data in locked rotor condition are used to track the variation of the parameters of the secondary coil with slip frequency. the classical method and the direct modification method are also used to estimate the parameters of the induction machine in comparison with this technique
首先利用了負載試驗的定子電流和輸入功率數據來識別額定工況下的電機參數,然後又使用了堵轉時的定子電流、輸入功率數據來識別電機二次繞組參數隨轉差頻率的變化,並與傳統參數測試方法和直接修正參數法進行了比較。Tolerances of shaft extension run - out and of mounting flanges for rotating electrical machinery, test
旋轉電動機械安裝法蘭和軸外伸部徑向跳動公差試驗But repetitious launching tests show that there is a remarkable error in the measurement of the angle which is measured in the technical position. the error has so notable effect on sight precision of weapons that this scheme is abandoned in the design of later missile weapons
但經多次發射試驗證明,技術陣地測量的兩基面夾角存在較大誤差,對武器的瞄準精度產生了較大影響,以致后繼的某些型號放棄了基面轉換方案。Applying virtual instrumentation technology, the author designed the hardware and software of the blower performance testing system. in the hand of hardware, testing data is acquired automatically according to press - difference sensor, press sensor and torch sensor ; blower speed is adjusted automatically according to frequency conversion of transducer and working state is auto controlled according to rotating baffle controlled by the step motor
硬體上採用壓差傳感器、壓力傳感器和扭矩傳感器檢測各試驗數據,實現了試驗數據的自動採集;利用變頻調速技術控制變頻調速器輸出信號的頻率,實現了風機轉速的自動調節;通過設置旋轉擋板裝置並用步進電機控制其旋轉角度實現了風機運行工況的自動控制。The contrast test between self - balance test and top load test has been done applying the research of the article, it shows that the transferred curves are well consistent with top load curves, so it can satisfy the engineering requirement and its accuracy can amount to about ninety percent
結果表明:自平武漢理工大學碩士學位論文衡試樁法與傳統靜載試驗具有較好的一致性;採用本文的提出的數據轉換分析方法,轉換曲線與傳統靜載曲線吻合性較好,極限承載力的判定誤差在10 %左右,能夠滿足工程精度的要求。In this paper, a method for evaluating the order of coriolis force term is suggested by nondimensionalizing the governing equations of tidal current, the scale analyses are made for several typical chinese bays, the errors due to the neglect of geostrophic action in making the physical simulations are calculated, and the practicability of physical model experiment for these sea areas is then discussed
從潮流基本控制方程出發,通過對方程的無因次化,給出評價柯氏力作用大小的方法,並就中國典型的海灣進行尺度分析,量化物理模擬時因地轉缺失引起的偏差程度,討論在這些海域是否可以付諸物理模型試驗。The thermal conductivity decides the processing parameters choosing for a material, such as a sample material with low thermal conductivity need low rotate speed and high friction pressure
材料熱物理性能決定了熱誘導試驗的參數選擇,對于導熱性差的材料應選用低轉速和大壓力。Standard test method for transition temperatures and enthalpies of fusion and crystallization of polymers by differential scanning calorimetry
用差示掃描量熱法測定聚合物轉變溫度的標準試驗方法Standard test method for determining temperatures and heats of transitions of fluoropolymers by differential scanning calorimetry
用差式掃描量熱法測定含氟聚合物溫度和轉化熱的標準試驗方法The results show that during the processes of speed changing and steering, the output torque of different wheels may have substantial discrepancy
模擬試驗表明,在變速或轉向的過程中,各輪的輸出轉矩可能會有較大差異。The measuring system to measure the dimensional rotation errors of the namcs is configured. the principium experiment verified this method. 3
將相位偏移干涉測量技術應用於測量與校準系統運動轉角誤差測量,初步試驗驗證了該方法的可行性。分享友人