比慣量 的英文怎麼說
中文拼音 [bǐguànliáng]
比慣量
英文
specific inertia-
By using transfer function, quantitative analysis, pattern analysis and reduced analysis of driving fatigue can be finished. based on automatic control theory, driving fatigue can be analogized as two parts : inertia link and proportion differential link
採用傳遞函數將駕駛疲勞定量化、簡約化、模式化，借用自控理論將駕駛疲勞類比為兩個過程：類慣性環節的響應過程及類比例微分環節的響應過程。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 。From 24th august of 2001 to 8th april of 2002, gala ( malus cv. gala ) and golden ( m. cv. golden delicious ), stored with three different models of cold storage, air condition and ultro - lower oxygen, were kindly provided in different sale time by inter - profession technique center of fruit and vegetable of france. the fruits were cut into three parts of the skin, pulp and core according to the human edible habit. the apple polyphenolics in the skin and pulp were determined by thiolysis hplc and unthiolysis hplc in institut national de la recherche agronomique, laboratoire de recherches cidricoles
為建立能全面測定蘋果果實多酚的hplc方法，同時為蘋果營養標簽的制定提供不同銷售時期蘋果多酚含量的依據，指導貯藏方式和時期的選擇，明確的消費信息，自2001年8月24日至2002年5月15日，由法國果蔬跨行業技術中心提供普通冷藏、氣調和超低氧方式下，不同銷售時期的嘎拉（ malus ， cv . gala ）和金冠（ m . cv . goldendelicious ）為試材，根據蘋果食用習慣將果實分為果皮、果肉和果心二部分，利用硫解hplc和非硫解hplc定量分析世界主栽品種金冠和嘎拉果皮和果肉多酚物質含量，並對不同貯藏方式下和同一貯藏方式下的不同商業貯藏時期多酚物質含量作了比較。Practice for construction of a stepped block and its use to estimate errors produced by speed - of - sound measurement systems for use on solids
階梯式比對試塊結構和用其估算在固體上使用聲速測量系統產生誤差的慣例Some conclusions are drawn : 1 ) effect of inertial force from superstructures on the lateral seismic response of single pile can not be ignored ; 2 ) the lateral seismic response of single pile induced by far - field earthquake are mainly affected by acceleration mass of superstructure > site eigenperiod. it increases with the increment of accele ration and mass of superstructure. as the site characteristic frequency approaches the self - oscillation frequency of the pile, sympathetic vibration occurs and the value of lateral seismic response reaches maximum ; 3 ) as the stiffness ratio of pile to soil increase, the relative displacement of pile to soil increases ; 4 ) the lateral seismic response of fixed - head pile is much smaller than that of free - head pile
將其解析解與具體的的抗震設防烈度和場地特徵周期結合起來，計算分析了成層地基中單樁的橫向地震響應，得到了以下結論： 1 ）上部結構慣性力對樁的橫向地震響應的影響不可忽略； 2 ）成層地基中的單樁的橫向地震響應主要受地震基本加速度、場地特徵周期、上部結構質量的影響，隨地震基本加速度、上部結構質量的增大而增大；場地特徵頻率越接近樁基自振頻率，樁基地震響應越大，等於自振頻率時，由於發生共振現象，樁基響應幅值最大； 3 ）樁土剛度比越大，樁土之間的相對位移的幅值越大； 4 ）樁頂固接的連接方式，可以有效地降低地震時單樁的橫向地震響應。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。Forehand attack is a non - habitual action in table tennis playing. it is the most important skill of quick attack players and the key of table tennis teaching to the students majoring in higher physical education. to have a good command of forehand attack in very short time is an important subject in table tennis teaching and coaching. compared with different results of teaching and coaching experiments, it is proved that the alternate teaching and coaching method combined with external factors in practice can help the students form the dynamic finalization, that the teaching and coaching method is very effective and can be used in table tennis theoretical teaching and practical coaching
正手攻球是快攻運動員最重要的技術，是高校體育專業學生乒乓球教學的重點，是一個非習慣性動作，要在較短的時間內高質量地掌握正手攻球，是乒乓球教學中的重要課題.從實驗對比入手，深入研究並確定以交叉教學法並配合練習中施加外部因素的方法，使學生形成穩固的正手攻球動力定型，能明顯提高教學效果，具有較好的實用性Based on plenty of achievements of domestic research on richard meier and first - hand foreign documents, the thesis has introduced richard meier, the famous american architect of the third generation, from various aspects, including his conception of architectural design, architectural philosophy, habitual archi - tectural vocabulary, etc, thoroughly and profoundly. some typical architectural works, especially the getty center, which is called century piece of meier, are introduced and evaluated from various aspects
邁耶是美國著名的第三代建築師，本論文綜合了國內大量研究邁耶的成果，並以大量原版外文資料為直接資料來源，分別從不同角度入手，全面深入地介紹了美國著名的第三代建築師理查德?邁耶? ?包括他的建築設計理念分析、建築哲學解析、慣用建築語匯總結、和其他著名建築大師的比較研究等方面。2. dynamics analysis : by setting up jacon matrix differential coefficient sport is passed to descartes space. it makes terminal executing manipulator produce differential coefficient of acceleration and force in every different coordinates can be got. then the effective inertia, coincident inertia and gravity load of two manipulators are calculated by lagrange method. so generalized joint torque of each joint is got, and along with equivalent driving torque, actual driving torque of each joint can be worked out. 3
動力學分析：建立雅可比矩陣將關節空間的各關節的微分運動傳遞到笛卡爾空間，使末端執行器位姿產生微分運動，以用於求加速度及力在不同坐標系間的線性變換，再用拉格朗日法計算兩機械手的有效慣量、偶合慣量、重力載荷，從而計算得到各關節的廣義關節力矩，並與等效驅動力矩共同算得各關節的驅動力矩。Design engineers now selecting pmbldc motors over conventional dc or induction motor drives for the following reasons : 1 ) the absence of brushes results in an essentially maintenance free operation and eliminates the undesirable effects of commutation such as sparks, brush - loss, radio - frequency interference, etc. 2 ) the low inertia of the rotor enhances the quality of the mechanical response of the motor, shortening the acceleration and deceleration time. 3 ) utilizing rare - earth permanent magnet materials with high coercive force results in substantially higher efficiency than their counterpart with brushes of the same size. 4 ) because of the absence of commutation segments, the stator construction is simple
現在的工程師們更為青睞永磁無刷直流電動機是因為以下幾點原因： （ 1 ）去除了電刷的永磁無刷直流電動機徹底地免除了維護而且消除了我們不希望的由於換向帶來的火花、電刷損耗以及無線電干擾等等； （ 2 ）低轉動慣量的轉子提高了電機機械響應的質量，從而縮短了電機加速和減速的時間； （ 3 ）高矯頑力稀土永磁材料的使用使得同樣尺寸的永磁無刷直流電動機比傳統的直流電動機效率高； （ 4 ）由於沒有機械換向部分定子的結構簡單了。The stress of their jobs makes women more likely than men to drink too much coffee, eat high - calorie snacks and take less exercise than their male counterparts
與男性相比，工作壓力迫使女性飲用更多的咖啡，食用更多的高熱量零食，降低運動量以及增加吸煙量等不良生活習慣。By comparing with the present mechanism designed for the elimination of inertia force, this kind of mechanism is smaller in volume, lighter in weight and possessing good result in eliminating vibration
與現有的為消除慣性力而設計的機構相比，這種機構的體積小、質量輕，消振效果較好。The control motors in the well traction robot require high temperature resistant, quick response, small volume and large power density. because coreless dc motors uses ironless - rotor, the inertia and inductance is very small, mechanical time constant is less than 28 milliseconds, several products can attain in less than 10 milliseconds. its weight and size are 1 / 3 - 1 / 3 less when compared with an iron core motor of same power
水平井牽引機器人對控制電機不僅有耐高溫要求，而且有響應快、體積小、能量密度大等要求，而空心杯電樞直流電動機由於無鐵心，故慣量和電感均大為減小，機電時間常數小於28ms ，部分產品可以達到10ms以內;與同等功率的鐵芯電機相比，其重量、體積減輕1 / 3 - 1 / 2 ，是低慣量電機中性能最好的一種。At this time, the approximate mechanical model of devices has been put forward, which frequency is 70 mhz, then we analyzed the euler ? bernoulli equation, find that the frequency is determined by the resonator ’ s density thickness and length ; the free - free - beam 、 coupled beam 、 support beam 、 transducer have been designed ; the model was simulated and modal analyzed on the coventorware and were consistent with the designed parameter. the silicon surface microfabrication process was developed and emphatically introduced several key surface microfabrication technologies, and was simulated by coventorware
本文通過分析歐拉-貝努立方程，得出濾波器的共振頻率主要由諧振梁的密度、厚度和長度決定，考慮切變形和轉動慣量的情況下，完成微機械諧振梁、支撐梁、驅動電容的設計;在coventorware軟體上進行模擬，分析結果與理論設計比較好地吻合;對微機械濾波器的加工工藝進行設計，給出器件的完整的工藝流程，重點介紹微機械表面加工工藝，並在coventorware上進行模擬。The natural frequencies of the intelligent beam with the rotary inertia and shear deformation of the beam are lower than that without those
考慮梁的轉動慣量和剪切變形時，智能階梯梁的頻率比沒有考慮時的要低。Permanent magnet synchronous motors ( pmsm ) have high magnetic energy product. in the same volume, it can be smaller and lighter than asynchronous motor. in addition, it has stiff mechanical character and small rotor moment of inertia, so it is often used as servo motor under the condition of high torque response and high performance
永磁同步電動機具有較高的磁能積，相同容量下可以做到比異步電動機體積更小、重量更輕，而且由於機械特性硬、轉子轉動慣量小，很適合作為伺服電機，用於高轉矩響應、高性能要求的場合。However, by comparison with flap nozzle servo valve which has been used widely and popularly by now, the torque motor of jet pipe servo valve has a larger rotary inertia. this causes low natural frequency of servo valve, and thus the response speed of jet pipe servo valve is slow. moreover, the jet pipe of servo valve has large flexibility, and it is easy to excite oscillations and noise in the valve, which is named self - excited oscillations and noise
然而與目前普遍使用的噴嘴擋板伺服閥相比，射流管伺服閥的銜鐵組件轉動慣量大，導致力矩馬達部分固有頻率低，從而響應速度慢，此外，射流管供油管柔性大，容易產生自激現象，這些缺點都使得射流管伺服閥的動態特性差，從而影響了它的工作性能。The main work done in this dissertation is organized as follows : in chapter 1, we consider a vibrating non - homogeneous beam with one segment made of viscoelastic material of kelvin - voigt type, and other parts made of elastic material by means of timoshenko model
當梁的橫截面的尺寸與其長度相比不能忽略時，需要考慮轉動慣量的影響，此時梁的模型由rayleigh梁給出。進一步，如果再考慮到由剪切力引起的偏差，就需要引入timoshenko梁的模型。The wind power generation technology also become research hotspot of many country ’ s scholar. and the direct - drive variable - speed constant - frequency ( vscf ) generation technology is paid attention to more and more for its high efficiency and practicability
它具有結構緊湊、通風效果好、轉動慣量大和高效率等的特點，比較適用於直驅式的變速恆頻的風力發電系統中。The research results indicated that by comparing the differences between aggregate moments of inertia to x axis and to y axis, i. e., the index of the aggregate distribution in asphalt mixture, it is feasible to evaluate quantitatively segregation
研究結果表明：通過比較混合料截面上的集料對x軸和y軸轉動慣量的差異（集料的分佈狀態指標） ，可以定量地評價混合料的離析狀況。分享友人