渦線態 的英文怎麼說
中文拼音 [guōxiàntài]
渦線態
英文
vortex line state-
The probe ' s linearity, temperature and dynamic characteristics are analyzed base on principal theory of eddy - current displacement sensor, such as the influence of the coil q value to the linearity characteristic, influence of the diameter of coil to the linearity characteristic, influence of coil resistance to the temperature characteristic, influence of the measuring coil to the syntony loop
在介紹渦流位移傳感器的基本理論的基礎上,分析了傳感器探頭線性特性、溫度特性、動態特性的影響因素。從探頭線圈q值對線性特性的影響;探頭直徑對線性的影響;探頭線圈電阻對溫度特性的影響;激勵信號溫度特性的影響:檢測線圈?振迴路動態響應特性等方面分析並提出製作高質量傳感器探頭的改進措施。The primary of linear induction motor which drives the metro is installed on the chassis bogie, and because it is quite strict with laying down railway rail to use flat linear induction motor to drive metro, its secondary - - - - reaction board ( called induction board ), which is a kind of compound board of aluminum and steel, is fixed on the rail sleeper between the track. it is the airgap which is a gap between the primary and secondary of lim. the electromagnetic airgap is a very important parameter of lim
利用有限元法對直線感應電動機二維非線性渦流場進行了數值計算,並在此基礎上,運用電磁場有限元分析的專用軟體ansoftmaxwell2d對單邊型直線感應電動機的瞬態特性進行了模擬分析,得到電機運行過程中的電磁推力、法向力、初級電流、氣隙磁密等曲線,通過改變直線電機參數,分析了電機氣隙對其瞬態性能的影響。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。The computations are shown to agree well with available experimental and numerical data and the physics of 3d large - scale flow separations and vortex shedding are confirmed. the simulation of the flow around a maneuvering wigley hull is a demonstration of capability for calculations of sway forces and yaw moments acting on a hull moving obliquely at a large range of yaw angles. the focus of study is large - scale cross - section separation flows, bilge - vortex development along the hull in the longitudinal direction and their effects on hydrodynamic forces
應用所開發的求解器,以wigley船型為算例計算了大角度斜航船體粘性流場和水動力,分析了漂角的變化對船體所受到的粘性水動力的影響,相當精確地預報了以橫流分離和般渦生成與泄出為特徵的操縱運動船體特有流動形態及橫向水動力和轉脂力矩,經與現有試驗和計算數據比較,檢驗和驗證了該求解器精確模擬繞斜航運動船體的大尺度分離流動和計算非線性水動力的能力。The paper researches the transient time precision and the following problem of the results developing with time for 2 - d high order blocking and matched method, at the same time, anlysing the stability of high order methods including boundary conditions. the results show that the domain decomposition and matched method using high order method can follow the time developing solution of taylor problem well, the computation result of the flow over a single or two tandem arranging circular cylinder agree the experiment and others " results well, moreover, the panting results of lift and drag coefficient are better than others
本文利用高精度分塊耦合求解方法,對其瞬態時間精度和非定常時間發展解的跟隨性問題進行了研究,同時也對包含邊界條件的線法高精度格式的穩定性也作了分析,研究結果表明高精度的分塊耦合求解方法可以很好地跟隨taylor問題的時間發展解,與單圓柱繞流和雙圓柱繞流的實驗結果比較以及他人結果比較符合很好,對升阻力系數在渦脫落時的脈動問題的結果優於他人結果。The mathematical model of non - linear transient magnetic field excited by voltage source is established in this paper. it coupled with electric circuit equation and mechanical motion equation, could solve the transient problem excited by voltage source, and the effect of the eddy currents, non - linearity in magnetic materials and mechanical motion of medium is taken into account
文中建立了電壓源激磁下的非線性瞬態磁場的數學模型,通過把瞬態磁場方程、電路方程及機械運動方程耦合在一起,得出求解電壓源激磁下,考慮鐵磁材料的非線性、導電媒質的渦流及媒質機械運動等條件下的瞬態過程問題。Uniqueness and stability of solution to the linear transient eddy current electromagnetic field problem for determining solution
線性瞬態渦流電磁場定解問題解的唯一性和穩定性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。The spanwise characteristic length determines the transition features and global properties of the wake. especially for the specific spanwise characteristic length linear stable mode can dominate the wake in place of mode a and determine the spanwise phase difference of the primary vortices shedding
尤其值得注意的是發現在特定的展向特徵長度下線性穩定的展向模態會取代模式a而在尾跡中占優並決定卡門渦脫落的展向相位差。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。Nonlinear characteristics such as bifurcation and chaos under three kinds of models are compared. and nonlinear characteristics of coupled vibrations under the model supporting with bearings are analyzed detailedly. the acquired torsion properties and nonlinear characteristics of cracked rotor have good assistant effect on diagnosing cracked fault
以重力占優的開閉裂紋模型為研究對象,研究了裂紋轉子升速過程的彎扭耦合振動瞬態響應特性及影響因素,探討了1 3階及1 2階亞諧共振特徵;在考慮轉速渦動情況下,比較了三種模型的分叉與混沌等非線性特性,並詳細分析了軸承支承模型的彎扭耦合振動非線性特性。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。The paper proves that in the 2d non - linear case, the coulomb gauge is been meet naturally. in the paper, the second - order isoparametric fem is adopted in the non - linear transient magnetic field simulating excited by current source and the results of transient field and static field solved by the second - order isoparametric and linear fem are compared and analyzed, besides, the effect of the eddy currents in the magnetic materials of the different conductivity is analyzed, it is obtained that the magnetic material of high magnetic conductivity and low loss should be chosen in designing of pma
文中採用二次等參元有限元法推導出在電流源激磁下的非線性瞬態磁場的計算方法和編制了相應的計算程序,並採用二次等參元有限元法和雙線性有限元法分別對瞬態場和靜態場進行了計算,並對計算結果進行了誤差分析,此外,還對不同電導率的導磁材料中渦流產生的影響進行了分析,得到結論設計永磁操動機構時,應選擇導磁性能好,損耗低的導磁材料。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