慣量的 的英文怎麼說
中文拼音 [guànliángde]
慣量的
英文
momental-
The so-called lunisolar precession is caused by the inequality of the moments of inertia of the earth.
所謂日月歲差,是由於地球轉動慣量的不相等造成的。A testing method for measuring rotative inertia
一種確定開卷機卷取機傳動系統轉動慣量的測試方法By means of the analysis on motion equation of simple pendulum, a method for testing the moment of inertia of a complex shaped rigid - body moving around a fixed axle under the condition of not knowing the barycentric position of the object was obtained
摘要通過對單擺運動方程的分析,得到了未知物體質心位置條件下測試復雜形狀剛體繞定軸轉動慣量的方法。Basing on the analysis about the reason that how the superabundant torque appears, direct torque control strategy is used to realize the servo control of two asynchronous motors and load system ' s simulation. the measure method of superabundant torque of the system, the valid method of static state torque and the benchmark of dynamic torque are given by testifying the system ' s speediness through experiments
在具體分析加載系統中多餘力產生原因的基礎上,採用直接轉矩控制策略,實現了兩臺異步電動機伺服控制和加載系統的負載模擬實驗,通過實驗驗證了系統的快速性;給出了系統多餘轉動慣量的測量、靜態轉矩的校驗和動態轉矩基準的實驗的基本方案。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。Finally, it is proved feasible to simulate the road - driving condition of electric bicycle on the testing platform. the collectivity programming of electric bicycle automatic testing system is maken out, including the simulated application strategy and method of road - resistance and wheeling inertia, design principle and evaluation system
( 2 )對電動自行車自動檢測系統設計做出了總體規劃,確定了行駛阻力與轉動慣量的模擬策略和方法,明確了系統設計原則,建立了系統評價體系,運用多級模糊綜合評價模型對各設計方案進行了評價選優。The equivalent rotation conversion of electrical actuating machinery main axle inertia on piston compressors
活塞壓縮機驅動電機主軸等效轉動慣量的折算The error in measuring the moment of inertia using three - string pendulum
用三線擺方法測試物體轉動慣量的誤差問題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。Based on the conservation principle of linear and angular momentum, the method derives the equations of the mass and mass center as well as inertia tensor of the new end - effector for the manipulator handling the unknown object
該方法基於線動量和角動量守恆定律,推出了機械臂負載未知目標的新的末端效應器的質量、質心和轉動慣量的方程組。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 composing of electric loading system is introduced in this paper, and the producing mechanism of plus torque is analyzed
摘要介紹了電動加載系統的系統構成,並分析了加載系統中多餘力的產生機理,介紹了對轉動慣量的一種動態測量方法。The paper puts forward an eccentric speed - regulating pulse - type stepless transmission and introduces its work principle. by analyzing motion and dynamics of new pulse - type stepless transmission, workout responsible
根據平面四桿機構等效轉動慣量的計算公式,計算了該變速器的等效轉動慣量,計算了等效轉動慣量的變化率? ?脈動度,分析了動載荷的影響。There is a actual example of application of rotary inertia
該文通過一個實例來闡述選擇慣量的具體應用。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。New method for estimating the inertia moment of an engine
試驗確定發動機轉動慣量的一種新方法This paper is main to explored to examination the mass center of not even quantity distributes cylindrical parts by means of four points revolving method and to examination the inertia moment of the parts by means of the law of just turning
本文主要從工程的角度上探討了對非均勻圓柱形工件(部件)採用四點旋轉法檢測質心和根據剛體轉動定理利用旋轉法檢測轉動慣量的方法。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。The results showed the effects of the load of the linear moving part on the dynamic performance of the system could be neglected, hut the effects of the mechanism and the dimensions of the system should be taken into account, and inertia had direct effect on the response characteristics of the system
結果表明:直線運動部分的負荷對系統動態性能的影響可忽略,應注意機械機構和尺寸對系統慣量的影響,慣量的大小直接影響系統的響應特性。A project has been brought forward, which focuses on the combination of an oscillation equipment with double steel - rob and the photoelectric technology on non - contact measuring. with collective precision being analyzed, the paper also points out how to bring it into effect. secondly, the design of mechanism, hardware and software of photoelectric measuring system with a core of at89c51 single chip microcomputer is accomplished
首先進行了不規則外形剛體轉動慣量測量的理論探索,找出了剛體轉動慣量與振動固有周期的關系,提出了以雙鋼柱扭擺機構,結合光電非接觸檢測技術測量航彈極轉動慣量的方案,並進行了總體精度分析,提出實施手段;其次,完成了航彈極轉動慣量測量系統的機械設計、以at89c51單片機為核心的光電檢測系統的硬體及軟體的設計;最後,給出了實驗數據分析及結論。分享友人