旋轉軸進動 的英文怎麼說
中文拼音 [xuánzhuǎnzhóujìndòng]
旋轉軸進動
英文
spin-axis precession- 旋 : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
- 轉 : 轉構詞成分。
- 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)
- 進 : 進構詞成分。
- 旋轉 : revolve; gyrate; rotate; spin ; revolution; revolvement; rotation; circumgyration; circulation
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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。Precessing stars do radiate gravitational waves, but they ' re not the only ones. any asymmetry about the rotation axis will do
進動的星體確實會輻射引力波,但它們並非唯一的選擇。繞旋轉軸的任何不對稱都會導致引力波的產生。The results indicate that : the high positioned air inflow do good to heat transfer in rotator disk ; different size of radial outflow have small effects on flow and heat transfer ; the heat transfer near rotating disk increases as rotating reynold number increases or non - dimensional mass flow rate increases
結果表明,高位軸向進氣對轉盤換熱有利;不同的徑向出口大小對盤腔內的流動換熱影響不大;隨旋轉雷諾數和無量綱質量流量增加,轉盤盤面的換熱效果增強。By comparing the results with relative experiment data, it is shown that rng k - is more exactly than the other turbulent model. 2 ) the influences of axial inflow position, radial outflow size, rotating reynold number, non - dimensional mass flowrate and axial inflow angle on the flow and heat transfer characteristics were numerically investigated for a typical rotator - stator cavity with axial inflow, radial inflow and radial outflow. the correlations for average nusselt number vs rotating reynold number or non - dimensional mass flowrate were established
( 2 )針對一典型的徑向、軸向進氣,徑向出氣的轉-靜盤腔結構,系統研究軸向進氣位置、徑向出口大小、旋轉雷諾數、無量綱質量流量和軸向垂直預旋進氣等對盤腔內流動和換熱的影響,整理出轉-靜盤腔內轉盤平均努謝爾數與旋轉雷諾數無量綱質量流量之間的準則關聯式。This contrasts with the computation of fundamental matrices and trifocal tensors, which use only a subsequence of 2 and 3 views respectively. secondly, in our methods, the essential geometry of the image single axis geometry may be specified by six parameters and this may be estimated from one conic and one fundamental matrix ( a total of 12 parameters ) or may be minimally estimated from two conies ( a total of 10 parameters ). previous methods have involved estimating more than this minimum number of parameters
從本質上講,本文提出的演算法是一個多視角幾何演算法,它充分利用了所獲得的圖象序列,將單軸旋轉運動的幾何信息很好地融入於二次曲線當中,從而創新地提出了利用二次曲線對單軸旋轉運動的不變量進行分析的方法,並首次求解出了單軸旋轉運動中的全部不變量。Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上,以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型,通過攝動方法和有限體積法,首次對各種截面(圓截面、橢圓截面、環形截面、矩形截面)旋轉曲線管道內充分發展流動的流動結構和傳熱特性(包括耦合對流傳熱特性)以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析,詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響,獲得了若干創新性成果。For getting the runner characteristics more correctly, researching the representation of runner characteristics of the kaplan turbine in this paper, and using this method of modifying runner characteristics to calculate the transient of hydraulic power station. improving the calculating model of the axial thrust in the kaplan turbine ' s transient. base on the theory of screw propeller without any boundary, using the theory of screw propeller with pipe, and the formula to calculate the dynamic axial thrust during transient is developed
本文對轉槳機組在過渡過程中的槳葉劃水產生水推力的數學模型進行了改進,在原來使用無邊界螺旋槳進行等效的基礎上,使用了導管螺旋槳對轉槳機組中的槳葉劃水進行等效,並且比較詳細的分析了影響轉槳機組軸向水推力的各個因素,以及給出了動態計算軸向水推力的公式,通過計算表明,使用改進后的動態水推力計算模型得到的結果能較好的反應實測的動態軸向水推力。During the process of measuring valve phase, the grating displacement sensor and photoelectric axis - angle encoder are applied to measure the displacement of valve and the angle of curving shaft respectively. their signals are sampled and imported into computer. then the three signals are compared to find the relationship of valve phases in order to offer the reliable measuring parameters for the researchers and quality controllers
在氣門相位測量中,採用光柵位移傳感器和光電軸角編碼器,分別將發動機進、排氣門位移量和曲軸旋轉位移量的變化信號通過采樣,輸入計算機,對三路信號加以比較找出氣門的相位關系,從而為設計開發人員、品質控制人員提供可靠的測量參數。When the shaker is working, its roller screen not only vibrates with the shaker deck, but also slowly rotates with the axis of itself, and the drilling fluids returned from annular space are separated inside the roller screen
工作時篩網筒與篩箱一起振動,同時還繞自身軸線作緩慢的旋轉運動,從環空返回的鉆井液進入篩筒內部進行分離。When the spot - machining tool reaches the hole bottom, the z - axis will firstly srop moving until the spindle makes d3 revolutions, and then return to the original position at the rapid feedrate
在點加工刀具碰到孔底后, z軸會先停止運動,直到主軸旋轉了d3圈后,才會以快速進給速率返回到原始位置。The numerical simulation and experimental research made on the characteristics of the clearance cavitations in kaplan turbine are described herein ; in which the analysis mainly is concentrated on the characteristics of leakage - vortex caused by the flow of the clearance between blade tip and blade chamber, that occurs at the front - pressure side of the blade, and the intensity of the secondary - flow - vortex ; furthermore, the relationship in between the leakage - vortex, secondary flow vortex, cavitations and erosion are analyzed as well
摘要對軸流轉槳式水輪機輪緣間隙流動及空化特性進行數值模擬和試驗研究,重點分析輪緣間隙流動在正面頭部泄漏流動所引起的泄漏渦帶、二次流動的漩渦強度和空化特性,以及泄漏渦帶旋轉、二次流動的漩渦與空蝕和磨損之間的關系。The system eliminates the conventional rotating driving components, the absence of mechanical propeller system will lead to a reduction in the mechanical noise generated and make the arrangement of ship more expedient
由於磁流體推進取消了傳統的螺旋槳推進系統中的螺旋槳、傳動軸、減速齒輪等轉動裝置,因此,它具有噪音小、布局靈活等優點。On the action of magneto mechanical coupling of rotating magnetic field generated by turning of exterior driver, robot was spun to generate propulsion in axial direction under the function of fluid dynamic pressure distributed on spiral surface of the robot, as a result, spiral and drive motion of the capsule type micro robot in intestine was realized
通過外驅動器的旋轉產生旋轉磁場,藉助于磁機耦合作用,驅動機器人旋轉並在其外螺紋表面形成的流體動壓力作用下產生軸向推力,進而實現膠囊式機器人在腸道內旋進。( 2 ) starting off with analyzing the forces affected on single dry solid granule on the roller screen, the relative slippage and slipping condition of granule at the tangential direction and axis direction of roller screen are discussed, and the average slipping conveyance velocity from feeding end to discharging end is given. the throwing conveyance of granule is discussed, the throwing coefficient of roller screen and its varying rule, and the concept of average throwing coefficient and its computing method are put forward, the starting condition and terminating condition for throwing motion of granule on the roller screen and the throwing conveyance velocity of granule are researched. the influence on throwing motion of granule by the rotating velocity of roller screen is discussed as well
( 2 )從筒式篩網上單顆干固相顆粒的受力分析著手,討論了顆粒在筒式篩網面上的切向相對滑動和軸向相對滑動及滑動條件,並導出了顆粒從進料端向出料端滑動運移平均速度;討論了顆粒的拋擲運移,給出了筒式篩網上的拋擲指數及其變化規律,提出了筒式篩網的平均拋擲指數的概念及計算方法,研究了筒式篩網上顆粒拋擲運移的產生條件和終止條件,以及顆粒拋擲運移的輸送速度;還討論了筒式篩網的旋轉角速度對顆粒拋擲運動產生的影響。The main contents of this thesis include : ( 1 ) summarize and analysis of the theories on vibration transmission through rolling element bearings ( 2 ) based on the threshold setting and signal ’ s statistical approach, a method for solving the problems of denoise was developed ( 3 ) using sparsity and clustering, the method and hypotheses for underdetermined blind source separation was studied ( 4 ) the method based on potential function clustering was given for underdetermined blind source separation of noisy signals based on the assumption that the input distribution is sparse and the mixture procedure is linear, the attenuation matrix and the delay matrix were estimated by clustering. the approach was experimentally illustrated for the case of m = 2. the separation of the signals from bearing test bed proved that the given methods are available and reliable
在需求分析和研究現狀分析的基礎上,本論文針對如下內容進行了重點研究: ( 1 )以滾動軸承為例,對旋轉機械振動信號的傳輸進行了歸納分析; ( 2 )通過設定某一門限並研究信號間的統計特性,研究了旋轉機械振動信號的盲源分離過程中噪聲消減策略; ( 3 )應用稀疏信號分析和聚類分析方法,對盲源分離中欠確定問題的假設條件進行探討並對分離方法進行了分析; ( 4 )採用基於勢函數聚類分析的方法,研究了欠確定前提下含噪聲測量過程中信號盲源分離方法。Self - aligning clutch release bearing is a kind of bearing with stamping encloser and sealers. perfect hermitically construction can prevent sewage from invading. this bearing a changed from inner revolution into outer revolution and diaphragm spring in the bearing can make it self - align. this bearing can reduce vibration & noise and has long life length, light weight and abundant lubrication
該類型產品為自調心離合器分離軸承,軸承帶沖壓外罩,兩面帶密封圈,能很好的防止污物進入軸承內部,軸承由外圈旋轉改為內圈旋轉,具有膜片彈簧與軸承自調心的功能,潤滑充分,減少振動、降低噪音、重量輕、使用壽命長等特點。For those who haven ' t heard the word, " precession " is when an object with a nonspherical shape wobbles around its rotation axis
如果你還不了解「進動」這個詞,進動指的是物體繞它的旋轉軸有非球形的擺動。Specially, the rotating ramjet with shaft power output was discussed. result showed that the thermodynamic cycle of the rotating ramjet is a breton cycle including two anti - cycle processes. because the advantage on thermodynamic performances and structure, the rotating ramjet will has wide prospective application in aircraft and powers system in heavy trucks, military facilities, tanks, warship as well as power plant
著重討論了軸功輸出方案的旋轉沖壓發動機,初步分析表明,旋轉沖壓發動機的熱力循環是加進了兩個反循環的布雷頓循環,該發動機在熱力性能和結構方面與燃氣輪機相比有獨特優點,有望在現代和未來各類飛行器及各類重型車輛、戰略設施、坦克、艦船動力、電力等能源動力領域獲得廣泛應用。Abstract : concerning the models for discribing aerodynamic stability of axial flow compressor, the original model is one - dimensional, and it is reasonable for the onset of surge only. for the onset of rotating stall, there are just some two - dimensional models at published literatures. a three - dimensional aerodynamic of compressor has been presented in this paper. an aerodynamic stability model concerning radial disturbance of compressor is presented. the calculated results show that the occurrence of radial disturbance is related to the axial velocity disturbance, which has important effect on aerodynamic stability of compressor. the position of onset of stall, in blade tip or hub, is dependent upon the characteristics of blade element. the comparisons of calculated results predicted by 2d and 3d aerodynamic stability model have also been made in this paper
文摘:軸流壓氣機的氣動穩定性模型,最初為一維模型,僅適用於描述喘振發作.對于旋轉失速發作,在公開文獻中有一些二維模型發表.本文提出了一類考慮壓氣機徑向擾動對失速影響的新的氣動穩定性模型.計算結果表明壓氣機的軸向擾動往往隨著徑向擾動的產生,徑向擾動的強度影響壓氣機的氣動穩定性,在葉尖還是葉根首先產生失速與壓氣機基元葉柵特性密切相關.本文對軸流壓氣機二維和三維氣動穩定性模型的計算結果進行了對比分析Concerning the models for discribing aerodynamic stability of axial flow compressor, the original model is one - dimensional, and it is reasonable for the onset of surge only. for the onset of rotating stall, there are just some two - dimensional models at published literatures. a three - dimensional aerodynamic of compressor has been presented in this paper. an aerodynamic stability model concerning radial disturbance of compressor is presented. the calculated results show that the occurrence of radial disturbance is related to the axial velocity disturbance, which has important effect on aerodynamic stability of compressor. the position of onset of stall, in blade tip or hub, is dependent upon the characteristics of blade element. the comparisons of calculated results predicted by 2d and 3d aerodynamic stability model have also been made in this paper
軸流壓氣機的氣動穩定性模型,最初為一維模型,僅適用於描述喘振發作.對于旋轉失速發作,在公開文獻中有一些二維模型發表.本文提出了一類考慮壓氣機徑向擾動對失速影響的新的氣動穩定性模型.計算結果表明壓氣機的軸向擾動往往隨著徑向擾動的產生,徑向擾動的強度影響壓氣機的氣動穩定性,在葉尖還是葉根首先產生失速與壓氣機基元葉柵特性密切相關.本文對軸流壓氣機二維和三維氣動穩定性模型的計算結果進行了對比分析分享友人