立軸輪機 的英文怎麼說
中文拼音 [lìzhóulúnjī]
立軸輪機
英文
vertical shaft turbine- 立 : 動1 (站) stand; remain in an erect position 2 (使豎立; 使物件的上端向上) erect; stand; set up...
- 軸 : 軸Ⅰ名詞1. (圓柱形的零件) axle; shaft 2. (對稱部分的直線) axis 3. (圓柱形的纏繞器物) roller; spool Ⅱ量詞(用於纏在軸上的線以及裝裱帶軸子的字畫)
- 輪 : Ⅰ名1 (輪子) wheel 2 (像輪子的東西) wheel like object; ring; disc 3 (輪船) steamer; steamboa...
- 機 : machineengine
- 輪機 : turbine
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First, the system boundary of machines affecting the shafts, such as the guide bearings, seal, electrical and hydraulic forces, the water in the runner etc, is analyzed. and the mathematic model of the system boundary of the machine is built
本文首先分析了對機組主軸系統影響較大的系統邊界條件,如導軸承、水封、電磁拉力、轉輪處的水體等,並分別建立了它們的數學模型。The plain milling machine consists of a boxlike column, which houses the motor and the gears or belt mechanism for driving the spindle and table.
普通銑床有一個箱式立柱(床身),立柱裝有電動機和齒輪或皮帶輪裝置,以驅動主軸和工作臺。Nowadays, the machining center carries through the precision inspection only following the fixed coordinates " axes, which can not completely reflects the real error of the spacial position of the practical machining outside the axes and leads to having no the directive relation between the inspected precision and the practical machining precision. so, this paper introduces that the error factors of influencing workpiece ' s outline on machining and carries out the solid inspection of every spot ' s error inside the workaround on the horizontal machining center
本文針對當前加工中心僅沿固定的坐標軸線進行精度(含幾何精度和定位精度)檢驗,並不完全反映軸線外實際加工的空間位置真實誤差,導致檢出精度與機床實際加工精度無直接對應關系的現狀,論述了加工時影響工件型面輪廓精度之加工中心的誤差因素,對加工中心實施其工作區內各點誤差的立體檢測。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。The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是逆系統方法的一類,並結合具體課題推導出的模型方程將dfl理論進行了擴展,使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程,此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的數學模型,並將擴展的dfl理論應用於此模型系統,結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高電力系統的暫態穩定性,並且在電力系統遭受小干擾時同樣具有良好的調節性能。This is the second bifurcation of the rotor, leading to low frequency movement at about 1 / 6 rotary speed. ( 3 ) in the third part of the paper, we focus on how to establish a rotor model with multi. span and multi. disk including main linear and nonlinear stimulations on the rotors system. the rules for establishing this kind of rotors model are put forward at the beginning of this part
( 3 )提出了轉子大系統的理論建模準則,考慮非線性油膜力、聯軸節剛度及標高等因素的影響,建立了一個16dof兩跨四盤四支撐不平衡彈性轉子模型,並提出了大型汽輪發電機組全軸系的48dof理論模型,建立了考慮陀螺效應時的復數形式的非線性動力學模型。The test system roots in the requirement of the devices " integration and intelligence for annual automobile brake performance test in the test station, and is mainly applied to the annual test for the car ' s brake force and the weight of axles ( dynamic or static ) by the traffic managerial apartment. the system can be used as a separated test unit, also shared by the whole test station through the database in master - control, even by the entire country
該檢測系統來源於汽車檢測站的汽車制動性能年檢設備綜合化、智能化要求,主要用於交通管理部門對轎車進行年終檢測時的制動力與輪軸重量(動態、靜態)檢測,該系統既可以成為一個獨立的檢測單元來使用,也可以通過主控機的數據庫系統與整過檢測站乃至全國各汽車檢測站實現資源共享。It specializes in producing yy h series 0. 160000kg hard or soft bearing balancing machines and special horizontal or stand balancing machine for automobile motorcycle, crank shaft, transmission shaft, tyre, aircondition, etc. also, we are the sole company in china that can design, produce and sale high speed testing machine of 0 - 65000rpm
經營通用型0 . 160000公斤yy h系列軟硬支承平衡機及特殊型汽車摩托車曲軸傳動軸輪胎空調器上慣流軸流風葉等專用臥式立式平衡機的專業公司。This paper studied 4 - axis cnc spiral bevel gear machine movement rules, and set up machine machining coordinates
摘要研究了四軸數控螺旋錐齒輪銑齒機的運動規律,建立了銑齒機加工坐標系。A hydrodynamic optimal method to enhance the energy conversion coefficient of the vertical - axis variable - pitch turbine is presented in this paper based on the analysis of the existing mathematical models, on the computational methods for predicting the hydrodynamic performance of turbines and on the available experimental results. by applying mathematical optimal theory, a mathematical model for optimizing the hydrodynamic attack angle of the blades of turbines is formulated and some numerical results are obtained as well
本文在總結和研究豎軸可調角直葉水輪機水動力性能計算的現有數學模型,計算方法和實驗結果的基礎上,運用最優化理論,給出了改善和提高該種水輪機能量利用率的一種優化方法,建立了數學模型,並得到了計算結果。The equation can solve bearing load distribution in multi - support rotor - bearing system by generalizing. 200mw generator set, 300mw generator set and 600mw generator set were analyzed and computed. the results indicate that the values of numerical calculation have a good agreement with known performances
本文分析了汽輪發電機組軸系的動力特性,建立了大型汽輪發電機組軸承負荷分配計算的矩陣方程,該方程可用於計算軸承的負荷,並用實例說明了求解方法,該方程可推廣到求解多支承轉子?軸承系統的軸承負荷分配,對200mw機組、 300mw機組、 600mw機組進行了分析計算,結果表明理論計算和實際情況一致。By it, the temperature and axial displacement on axes around the blades of the turbine can be measured. the advanced circuits monitor their change. if the temperature and displacement go beyond the normal range, the alert will be sent out, and they can be stopped and repaired " at that time
渦輪機的工作環境惡劣,為克服環境給測量帶來的困難,採用非接觸式測量方法對渦輪機軸的溫度和渦輪機軸的軸向位移進行測量,採用精確的電路監控溫度和位移的變化,若溫度和位移超出其正常工作范圍,立刻發出警報,停止其工作以進行及時的修理。Finally, on the base of all work above and present condition, the experimental system is built up in light of the space environment of weightlessness and weak damping where the coupled structure works, and the experiments is carried out
該系統利用單軸氣浮臺實現了低阻尼運動基的建立,並採用反作用輪方< wp = 5 >式實現了在不引入附加阻尼的條件下運動基的機動。Then a real - time quasi - steady turboshaft twin - engined model is founded by simulating the rotor speed fluctuation
為模擬大負載情況下旋翼轉速的波動,建立了雙發準定常渦輪軸發動機實時模擬模型。At last with the prototype of the vertical - axis cycloid turbine, the optimal method and its mathematical model based on conjugate gradient method are presented in order to enhance the energy conversion coefficient. such optimal results as the energy conversion and the relation between attack angle and azimuth angle are given with particular analysis to sum up the reason of the improved performance of the turbine
最後以豎軸直葉擺線式水輪機為優化原型,提出了一種水輪機水動力性能的優化計算方法,建立了數學模型,運用共軛梯度法進行優化設計,以提高水輪機的能量利用率為目標,給出了優化的葉片攻角變化規律、能量利用率結果,探討了能量利用率提高的原因。Second, a jeffcott rotor model supported by two seals bearings in its two ends is established to simulate the shafting of simple turbines ( only short - and - straight - blades are included in the shafting ). and periodical response of the system is obtained by using the newmark method. then, the dynamic characteristics of rotor system at the certain rotate speed and the certain physic
其次,建立了一個用來模擬簡單汽輪機軸系(只含有短直葉片)的兩端用滑動軸承支撐的jeffcott轉子模型,並用newmark方法求得了系統的周期響應,根據系統的周期響應、 poincare映射圖、頻譜圖、分岔圖等,分析了系統在特定轉速及特定的轉子系統參數下的運動特徵。The force applied on front - wheel is discusced through an example in which tractor steering knuckle kingpin is tendency inside, and the returning positive moment acquired by front - wheel ground counteraction is also analysed
摘要從車輛前輪的受力出發,以拖拉機轉向節立軸內傾時為例,分析了前輪接地反力作用所產生的回正力矩。Aimed at the rotor bearing system of 300 mw steam turbogenerator set and on the basis of establishing its concentrated general model with 8 supportings and 9 nodes, a study was carried out on the bending vibration response of the most left end surface of shafting and of the right end face of generator
摘要針對300mw汽輪機組轉子軸承系統,在建立其8支承9節點集總模型的基礎上,對軸系最左端面和發電機右端面的彎曲振動響應進行研究。The company, after many years of exploration, research, for the existing market demand and successfully developed : twdj series turbine mill, the tcm series vortex flow ultrafine grinding mill plastic tfsm series, tcwm series super swirl polishing, tldj series screen shaft extruder - mill equipment, and other varieties of sets of mechanical equipment
本公司經過多年的摸索,研究,適合現有市場的需求,成功開發出: twdj系列渦輪式粉碎機, tcm系列氣流渦旋超微粉磨, tfsm系列塑料粉碎機, tcwm系列超級渦流磨, tldj系列無篩立軸式粉碎機擠塑式設備等多個品種成套機械設備。The paper researches a kind of system measuring the temperature and displacement of the optical fiber that can monitor and control simultaneously the temperature and displacement of the blades two - way signals of the turbine, and alert when the emergencies happen
本課題研究的光纖溫度位移測量系統能在惡劣的環境下,同時實時監測渦輪機軸溫及其軸向位移兩路信號,保證其正常工作,並在發生異常情況時,能立刻報警。分享友人