慣量系數 的英文怎麼說
中文拼音 [guànliángxìshǔ]
慣量系數
英文
inertia factor-
This article takes the lagrange equation as the principle, establishes mathematics modeling to the inertia brake vibration when it brakes, then simulates it with matlab. this paper educed the relation equations between, which are the inertia brake ' s friction coefficient of the brake ring and the friction disk, the mean radius, the braking force, rotation inertia of the driving top and the spline shaft, spiral climbing angle of the brake ' s concave - convex helicoid, the mean effort radius of the concave - convex helicoid, elasticity coefficient of the spring, quality of the driving top and the spline shaft, rotations inertia of the brake ' s rotation part besides the driving top and the spline shaft, suppresses sleeve. provides the theory basis for the inertia brake structure optimization
本文以拉格朗日方程為理論基礎,對慣性制動器在制動時的振動進行數學建模,然後用matlab對其進行模擬,得出了慣性制動器在制動時振動角頻率分別與制動環和摩擦片之間的摩擦系數、制動力的平均半徑、主動頂和花鍵軸的轉動慣量、慣性制動器的凹凸螺旋面的螺旋升角、凹凸螺旋面平均作用力的半徑、彈簧的彈性系數、主動頂和花鍵軸的質量、慣性制動器除主動頂和花鍵軸外其他部分的轉動慣量和、頂壓套的質量等慣性制動器各零部件的物理參數之間的關系,為慣性制動器的結構優化提供了理論依據。So we consider five financial indexes includes stock b / p, e / p, current stock size, current stock stru and financial levge by the international tradition, then descriptive statistical test method and cross section statistical test method proved that b / p and current stock size have marked effect on the securities yield besides coefficient b. in the third chapter, the article fut forward a risk factor model, estimates yield sequences of every risk factor by weight regression, and then estimates each risk factor coefficient of different stock by time sequence regression, at last we can reckon the portfolio risk o2p and yield rp which consists n stocks
結合國際慣例,文章考慮了股票的凈值市價比( b p ) ,市盈率倒數( e p ) ,流通規模( size ) ,流通比例( stru )和財務杠桿( levge )等五個財務指標,應用描述性統計檢驗和橫截面統計檢驗等多種方法,結果表明,除系數以外,凈值市價比( b p )和流通規模( size )對證券收益率部有重要的影響。在論文的第三章,提出了一個基於多因素的風險因子模型,並用加權回歸和時間序列回歸等方法估計出了不同證券的各風險因子系數(類似於單指數模型中的系數) ,據此,即可衡量出一個包括n只股票的組合的風險_ p ~ 2和收益率r _ p 。In order to improve the technology level of testing static parameter of rocket bomb and increase its hit ratio, this paper describes in detail the measuring system of the moment of inertia of rocket bomb, the designing principle and realizing method
為了提高我國航彈靜態參數測試的技術水平,增強航彈命中率,本文詳細論述了航彈極轉動慣量測量系統的設計原理及實現方法。Then pid flow rate control algorithm is introduced. all experiments made in this chapter are about measuring the valve parameters according to spool positions, single actuator flow rate control by the calculated flow rate feedback control method, free flow rate dividing control under the sufficient pump discharge flow rate situation, proportion flow rate dividing and flow rate dividing based on meter - in flow rate feedback control method under insufficient pump discharge flow rate situation. the results of all experiments proved that the method presented in this thesis is an effective way to overcome the unreasonable flow rate dividing when simultaneously operating multi - actuators with different inertia loads
第四章介紹了多執行器復合控制實驗系統和實驗方法;介紹了實驗採用的流量控制的pid演算法;並測定了執行器控制閥和閥芯位移相關的系數;做了單個執行器計算流量反饋流量控制、流量足夠情況下多執行器流量任意分配、流量不足情況下多執行器按比例調節流量分配和多執行器進油側流量反饋分流控制實驗;通過實驗說明了論文提出的分流控制方法能實現大小慣性負載復合操作時的合理分流。Taking intercontinental ballistic missiles as objects under research, and based on the analysis of the influence of accelerometer measurement error and gyroscope excursion error on the apparent acceleration, the error transfer model of the inertial system in a midcourse guidance segment for velocity and location is given, and the pure inertial navigation guidance error is computed with the given imu error coefficient deviations
摘要針對洲際彈道導彈,在分析加速度計測量誤差和陀螺漂移誤差對導彈視加速度影響的基礎上,給出了中制導段慣性系統對速度和位置的誤差傳遞模型,對給定的慣組誤差系數偏差進行了純慣性導航制導誤差計算。A method is provided to measure the friction parameters of the bed. the maximum friction torque, coulomb friction torque, viscous friction coefficient and moment of inertia can be gotten by fitting the free reduced rate curve of the gimbals and measuring the motor current when the motor begins to rotate
提出了一種測量轉臺摩擦特性的方法,通過對轉臺在無外推力作用下的速度衰減曲線的擬合以及電機啟動過程電流和轉速的測量,可以得到最大靜摩擦力矩、庫侖摩擦力矩、粘滯摩擦系數及轉動慣量。As a result of the simplified torsion moment of inertia, integral stability coefficients based on the gb50017 code increase relatively 5 % or 0. 01 ~ 0. 04 absolutely, only for hn behind hn400 150, whose calculation length goes beyond the limit of 8 meters, taking account of any load condition and any yield - point
Gb50017梁的整體穩定系數公式的誤差是由扭轉慣性矩的簡化造成。任何荷載情況和鋼號,規格大於hn400 150的hn型鋼,當計算長度大於8米時,整體穩定系數偏高約5 ,絕對偏高量在0 . 01 0 . 04范圍。Based on water flow movement characteristics in film hole irrigation, a zero - inertia model form surface water flow movement in film hole irrigation were presented in this paper
根據膜孔灌溉田面水流運動特性,建立了膜孔灌溉田面水流運動零慣性量數學模型,並將其與優化理論相結合,提出了確定膜孔灌溉田面綜合糙率系數的優化模型。Abstract : based on water flow movement characteristics in film hole irrigation, a zero - inertia model form surface water flow movement in film hole irrigation were presented in this paper
文摘:根據膜孔灌溉田面水流運動特性,建立了膜孔灌溉田面水流運動零慣性量數學模型,並將其與優化理論相結合,提出了確定膜孔灌溉田面綜合糙率系數的優化模型。Aiming at the uncertainty brought by the rotating inertia and motor torque coefficient during the field weakening process, the mixed sensitivity robust controller based on inner mode principle is designed
在此基礎上,針對實際直流電機速度控制系統弱磁調速過程中存在的電機轉矩系數變化和轉動慣量等因素引起的參數不確定性特性,應用內模原理,設計了混合靈敏度魯棒控制器。The major work is as follows : 1 ) based on dry hull modal analysis of flexure - torsion coupling vibration of unsymmetrical ship structures about longitudinal centerline, a transfer matrix method to calculate the dynamic characteristics is adopted after the parameters of structures are specified. taken both shear effect and warping deformations into account, the point and field transfer matrices are derived, and the influence on dynamic characteristics is computed according to different damaged positions and areas
其主要內容如下: 1 )通過薄壁梁理論求得結構參數后,採用遷移矩陣法,在考慮剪切效應、轉動慣量和翹曲影響下,推導出求解破損船體結構的動態特性公式系統的場遷移矩陣和點遷移矩陣,並著重分析了船體不同破損程度和翹曲變形對船體振動的動態特性的影響。Because the data output of most of the inertial sensors in sins is in incremental form, the fundamental theory of sins based on the data output form is described in this thesis
針對當前捷聯慣導系統中慣性器件的輸出大多採用增量形式的數據輸出,簡要介紹了適合於增量形式數據處理的捷聯演算法基本理論。In order to test resistance parameters and general properties of the idler automatically and continuously, by using " the rotating inertia method " to construct mechanical drive control system, theory of realizing double parameters measurement of the idler was discussed, and by using pressure transducer parts to control the experiment pressure, method of examining the idler was also put forward
摘要為實現對托輥阻力參數及綜合性能的自動化、連續化的測試,論述了利用理論力學中「轉動慣量法」構建機械傳動控制系統,實現托輥阻力雙參數測量的原理,闡明了採用壓力傳感器部件控制試驗壓力,達到托輥產品在規定壓力下跑合要求的檢測方法。This paper bring out design method of inverse eigenvalue problem, which adapts to general structures with linear parameters, namely coefficients of all or partial elastic component and inertial component are treated as design parameters, for given some order natural frequency and corresponding vibrating mode, all of useable designing parameters will be got through solving a linear system of equations, thereby stiffness matrix and mass matrix of actual structure are constructed. this paper also discusses existence condition and unique of results
提出了適用於具有線性參數的一般結構的逆特徵值問題的設計方法,即以系統的全部或部分的彈性元件與慣性元件的系數為設計參數,對于預先給定的若干階固有頻率及相應振型,通過求解一線性方程組即可確定全部實際可行的設計變量,從而構造出實際結構的剛度矩陣和質量矩陣,並論證了解的存在性與唯一性。The task of the test system is to comprehensively test the electrical performance parameters of the pulse convert circuit which is one of the accelerometer components in the system products
測試系統的任務是綜合測試導彈捷聯慣導系統產品中加速度計組件之一「大量程脈沖變換電路扳」的電性能參數。The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system
如航跡產生器的設計,該航跡產生器是研究組合導航問題的前提,從國外一些研究組合導航系統的文獻中可以看出,設計這樣一個航跡產生器是非常必要的,所以本文自行設計了這樣一個系統;還討論了捷聯慣性導航系統中捷聯解算的方法,並進行了模擬研究,由於在本文設計的閉環反饋式組合導航系統中,對捷聯慣導系統的平臺誤差進行閉環控制,需要將濾波器輸出的校正量反饋到捷聯解算內部,所以必須對捷聯解算進行深入的研究和分析,更何況捷聯解算問題本身也是導航界的一個熱門研究課題;另外,本文還介紹了gps軌道及其星座模擬的設計思想和方案,與以往gps軌道和星座模擬不同的是本文從天體力學中計算春分點開始,逐步進行gps軌道及其星座模擬,這樣的設計方法對從事衛星導航的研究工作是有價值的;還對組合導航中誤差建模方法進行了研究,綜合運用隨機過程、概率統計、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法,並運用實際研究工作中的測量數據對該方法進行了驗證。Through simulation the dissertation analyzes the effect of connect stiffness, load inertia, pressure - flux coefficient to the active load system and surplus force ( torque )
通過模擬,分析了連接剛度、負載慣量、總的壓力流量系數對主動加載系統和純多餘力的影響。Abstract : in the light of the problems of high power consumption and low working efficiency in a beam pumping unit, a new method for power saving of the unit is proposed, that is, adopting an optimum structure of the unit and decreasing the periodic load coefficient of the pumping unit by changing the performance characteristics of the electric motor and by increasing the rotary inertia of the unit
文摘:針對游梁式抽油機能耗大,工作效率低的問題,提出遊梁式抽油機節能的新方法,即在採用優化抽油機結構的基礎上,通過改變電動機的工作特性和增加抽油機轉動慣量的辦法降低抽油機周期載荷系數。The influence of data from the inertial measure unit ( imu ) to the precision of navigation computing is analyzed. the analysis is taken from two aspects, signal bandwidth curtailment and time delay
本文針對激光陀螺捷聯慣導系統的數據採集電路,從信號帶寬縮減和時間延遲兩個方面分析慣性測量數據對導航解算精度的影響情況。Taking account of the simplified torsion moment of inertia, integral stability coefficient increase relatively 5 % or 0. 01 ~ 0. 03 absolutely, only for narrow rolled h - section ( hn ) behind hn350 175, whose calculation length goes beyond the limit of 8 meters
Gb50017中扭轉慣性矩的簡化使規格大於hn350 175的hn型鋼,在計算長度大於8米時,整體穩定系數偏高5 ,絕對偏大量在0 . 01 0 . 03范圍。分享友人