渦狀線 的英文怎麼說
中文拼音 [guōzhuàngxiàn]
渦狀線
英文
spiral-
The simulation experiment has been done on a turbofan aeroengine. simulation results indicate that the neural network controller has quick response and has good performances in the full envelope
對某型渦扇發動機飛行包線內不同狀態點進行了模擬試驗,模擬結果表明,控制器響應速度快,魯棒性好,取得了良好的效果。In lifting - surface theory, the non - liner phenomena of the trailing vortex in the transition wake area and of the tip vortex separation are considered. in surface panel method hyperboloidal quadrilateral panels are employed and the morino ' s analytical formulation is used to determine the influence coefficients. the more reasonable pressure kutta condition is satisfied at the trailing edge of propeller blade
在計算中,對于升力面理論,本論文考慮了過渡區尾渦收縮和葉梢分離的非線型現象的影響;對于面元法,本論文採用的是計算較為簡便的基於擾動速度勢的基本公式及雙曲面形狀的面元,在槳葉隨邊滿足更趨合理的壓力kutta條件,並用morino導出的解析公式計算面元的影響系數的快速有效的數值預報方法。Firstly, the basic character of the remote filed eddy current is simulated and analyzed in case of two - dimension axial symmetry which approves the existence of remote filed eddy current phenomenon ; the full circumferential defect model is investigated to approve the feasibility of using the rfec techniques to detect the position and depth of defect ; the pit corrosion 、 circumferential and axial crack models are simulated, and the defect character based on voltage plane polar plot and the changes of phase and amplitude are analyzed to supply the standard for defect reconfiguration
首先,在二維軸對稱情況下模擬與分析了遠場渦流的基本特性,證實了遠場渦流現象的存在;對全周向缺陷的遠場渦流檢測進行了詳細研究,證實了遠場渦流檢測缺陷位置和深度的可行性;對點狀腐蝕、軸向與周向裂紋三種非軸對稱缺陷進行三維有限元模擬,利用相位差和幅值變化曲線與電壓平面極坐標圖對缺陷特徵進行分析,為缺陷形狀重構提供了依據。At first, a method for controlling chaos is studied, which is based on phase switching modulation. the n - scroll chua ' s circuit is controlled to its fixed point as well as periodic orbits by using switching modulation on one its phase. its mechanism of control is analysed using the change of the max lyapunov exponent when the system is controlled
首先,通過對多渦卷蔡氏電路中非線性特性函數的相位進行開關調制,把多渦卷蔡氏電路由混沌狀態控制到其平衡態和周期軌道,並用控制后系統的最大lyapunov指數隨時間的轉變闡述了其控制機制。These methods have many problems to the design and numerical number analogy of electric wire. electric potential and electric eddy - current detector, such as the wire size, the wire core type ( solid core or twisted line ), the wire core conductivity, the magnetic permittivity and the optimize match of the detector ' s form, are n ' t made an incisive analysis
這種方法對電線電位電渦流透視探頭的設計和數值模擬中的很多問題,如線徑大小,線芯類型(實芯、絞線) ,線芯電導率,磁導率與探頭形狀的優化匹配等問題,還不能透徹分析。8. very small section aluminum wire is used for coil wire in reactor so as to reduce loss of eddy current in wire effectively
8 .電抗器採用截面很小的鋁導線2 4作為線圈導線,有效地降低了諧波狀態下的導線中的渦流損耗。Turbojet engine is selected as propulsion system according to the practical situation. the work of this part ranges from design to characteristic analysis. the characteristic curves of engine in various situation are shown, which provides preparation for trajectory computation
並對渦噴發動機從設計到特性分析做了大量的工作,給出發動機在不同工作狀態下的特性曲線,為進一步研究彈道設計提供了前期的準備工作。The advanced development on the new kinds of scroll profile has become the research focus in the profile design. used a new type scroll compressor of the combination profile in this paper, a scroll is constructed following this : the inner turn consists of the standard involute of circle, and the same to the outer turn. then the middle turn is one of arc
本文所研究的新型組合曲線渦旋壓縮機最內圈以基圓漸開線構成,中間段以圓弧過渡,最外圈由圓漸開線構成,能發揮不同型線的優勢,是一種能滿足多性能較優要求、形狀性態良好的渦旋型線,與傳統的基圓漸開線構成的渦旋壓縮機相比,具有效率高、泄露量少、體積利用系數大等優點。This machine consists of bin, vibration chamber, coupling and motor. the vibration chamber is made up of eccentric wheel. rubber soft piece, main shaft and bearing. the adjustable eccentric hammering is transmitted to the centerline of main shaft by motor drive, and produce centrifugal force at unsteady state so as to change the strength of material and form vortex in the sieve. weghted regulator and amplitude can be adjusted as per different material and sieve mesh
本機由料斗、振蕩室、聯軸器、電機組成,振蕩電腦內由偏心輪、橡膠軟體、主軸、軸承組成,可調節的偏心重錘經馬達驅動傳到主軸中心線,在不平衡狀態下,產生離心力,使物料強度改變在篩內形成漩渦,重錘調節器和振幅大小可根據不同物料和篩網進行調節。( 2 ) the flow in the vicinity of riblets is investigated numerically by a vorticity formulation, and two drag reducing features of riblets are obtained and analyzed
( 2 )利用渦理論方法對近壁面流場進行數值計算,得到層流和湍流狀態下的兩組降阻曲線,並加以分析。分享友人