軸向對稱性 的英文怎麼說
中文拼音 [zhóuxiàngduìchènxìng]
軸向對稱性
英文
axial symmetry- 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)
- 對 : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
- 稱 : 稱動詞(適合; 相當) fit; match; suit
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
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Rail corrugation at high frequency wheel rail interaction
小口徑軸對稱收縮噴嘴射流沖擊大平板噪聲指向特性研究Moke and fmr studies were performed on epitaxial single crystalline fe ph. d thesis ; investigations of magnetic properties on magnetic thin, ultrathin and patterned films ultathin films on iii - v semiconductor inas substrate with thickness of 8 - 25monolayer ( ml ). the major findings are listed below : ( 1 ) the in - plane magnetic crystalline anisotropy of film with 8 - 25 ml thick are four - fold anisotropy, and the in - plane unixial anisotropy of fe / inas films decreses faster with thickness than that in fe / gaas films. it could be explained that the stain relaxation of fe / inas films is also faster than that in fe / gaas films as indicated by leed
對于外延生長在inas襯底上、厚度為8 - 25ml的超薄fe單晶膜進行了鐵磁共振和磁光研究,獲得以下幾點結果: ( 1 )膜厚在8 - 25ml之間時,薄膜面內的磁晶各向異性為四度對稱各向異性,垂直單軸各向異性比同厚度的fe gaas系統小許多,而立方各向異性則比fe gaas系統更接近bcc結構的fe 。The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation, there are te mode and tm mode in this special waveguide, but the principal mode is different of the character of the uniaxial crystal, the principal mode is the principal mode of te mode for the negative uniaxial crystal, but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane, for the positive uniaxial crystal material, the principal mode of the waveguide is a te wave, which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition, there will be only the principal mode propagating in the waveguide, otherwise some of the higher order modes can be excited, which are neither te modes, nor tm modes, but the hybrid guided modes
本文就是在此背景下,利用金屬波導和單軸晶體的一些特性,結合麥克斯韋方程組和波導的邊界條件,從三種不同的情況研究了光在對稱平面單軸晶體金屬波導(波導層是單軸晶體,兩個波導界面均為金屬)內的傳輸特性,其主要貢獻為,首次解析地得到了這種波導結構下模式場的精確解,並發現了一些有用的特性: ( 1 )模式場的性質因單軸晶體的性質不同而異; ( 2 )當單軸晶體光軸位於波導界面法方向與傳輸方向構成的平面內時,波導中傳輸te波和tm波,只不過其主模因單軸晶體的性質不同而異,當波導層介質為負單軸晶體時,波導主模是te波主模,而波導層介質為正單軸晶體時波導主模是tm波主模。 ( 3 )當單軸晶體光軸位於波導面內時,對于正單軸晶體,波導的主模是橫電波te _ 0模,任何頻率的光波均可激勵該模式;當光波波長滿足一定條件時,波導內傳輸單模,否則,將激勵起高階模式,高階模即匪te波,也匪tm波,而是兩者耦合而成的混合模。Geophysicists had already cognizance of that the pervasive velocity anisotropy with varying degree in the mantle or the sedimentary rock of upper crust is an important physical property. almost all existed research works fasten on those transversely isotropic media with vertical or horizontal axis of symmetry ( ti ).,
地球物理學者已認識到從地幔到地殼上部的沉積巖存在著不同程度的各向異性,且對具有垂直或水平對稱軸的橫向各向同性介質( ti )有很多的研究。The numerical simulation of axisymmetric two - dimensional shock tube is studied, which has a conical convergent section, and its driving gas is the hot product of hydrogen oxygen detonation. finite volume tvd scheme is adopted and the mesh is local orthogonal. the primitive equations are euler s equations of multi - component flow. the new method of eliminating numerical oscillation at the interface of two materials is extended to two dimensions. the mechanical character of this shock tube is analyzed
對由前向爆轟產生驅動氣體並具有局部錐形收縮截面的軸對稱激波管利用兩相常比熱完全氣體的歐拉方程組和有限體積tvd格式在局部正交的網格上進行了二維數值模擬。將消除兩種介質界面處數值振蕩的新方法成功地推廣到二維情況。分析了該激波管的力學特性。Many high - power microwave ( hpm ) sources utilize an azimuthally symmetric output mode such as the tm 01 circular waveguide or the coaxial tem mode as output mode. if radiated directly these azimuthally symmetric modes will generate a doughnut - shaped pattern, with a null on boresight
許多高功率微波源產生的微波模式都是圓波導軸對稱模式,由於其輸出埠的口徑場分佈具有圓對稱性,將導致軸向為零的環狀遠場方向圖。Only axisymmetric layout of tip gap can improve mass flow range, namely, all asymmetric casing configurations can not improve compressor performance and stability
由實驗分析得知,只有在轉子尖部間隙為軸對稱時,才有可能改善轉子的性能;非軸對稱形式,即尖部間隙周向的變化,只能惡化轉子的性能。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件,具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介面電路進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。Symmetries are existed in oxy and oyz planes for horizontally and vertically polarized waves, i. e. one ' s h - polarized case is the same as the other v - polarized one. while the expectations of the rotatory axes oriented in oxz plane are complement, one ' s h - polarized case is the same as the other v - polarized one
平面oxy和平面oyz對于兩種偏振極化入射波時存在著對稱性,一者的水平極化與另一者的垂直極化情況相同;而oxz平面內旋轉軸的平均取向的期望互余時,一者的水平極化與另一者的垂直極化時的情況相同。Several models of bonded dissimilar materials with interface edges are calculated. displacement, electrical potential, singular stress fields and singular electrical displacement fields near a singular point are deduced by the eigenfuntion expansion method based on the general solution of the spatial axisymmetric problem of the transversely isotropic piezoelectric media. a generally axisymmetric interface edge of bimaterials with arbitrary interface angle and joining angle is analyzed theoretically by using this method
在此基礎上,對具有任意界面角和結合角的橫觀各向同性雙壓電材料空間軸對稱界面端一般模型的軸對稱變形問題進行了理論分析,給出了該模型界面端的奇異性特徵方程以及界面端附近的位移場、電勢、奇異應力場和奇異電位移場。The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. in conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic - bandgap structures. it is shown that our photonic bandgap structures can greatly improve the performance of the patch antennas
該平面圓環結構軟表面天線是在空氣介質的皺褶圓環結構軟表面天線的基礎上改進得到,為了便於比較,我們首先研究了空氣介質的皺褶圓環結構軟表面天線,用fdtd方法並結合pml吸收邊界條件對該天線的性能進行了研究,結果表明天線的帶寬增加,天線的軸對稱性得到了很大改善, e面和h面方向圖的波束幾乎重合,天線的旁瓣和背瓣受到很大的抑制。Based on the classical nonlinear plate theory, axisymmetric post - buckling behavior of a functionally graded circular plate under radial compression was investigated
摘要基於經典非線性板理論,研究了功能梯度圓板在均勻的徑向壓力作用下的軸對稱過屈曲問題。Furthermore, the dual integral equations can be reduced to the fredholm integral equations of the second kind and solved by numerical procedure. at the end of this chapter, the numerical analysis for dynamic interaction characters of saturated half - space / layered ground and circular plate is evaluated. finally, the solutions for 3 - d dynamic responding of elastic rect
基於橫觀各向同性飽和半空間/有限層地基非軸對稱波動方程的通解,按混合邊值問題建立飽和地基與彈性圓板非軸對稱動力相互作用的積分方程,求解積分方程后得到橫觀各向同性飽和地基上圓板非軸對稱動力響應的一般解,並分析了飽和地基上圓薄板和中厚板振動的若干特徵。Finite element eigenvalue analysis for dynamic buckling of cylindrical shells under axial elastic compression wave
軸向應力波作用下圓柱殼彈性軸對稱動力失穩有限元特徵值分析Lithologically different rock sheets intertexturally superimposed with faults and folds of various styles. while, the southern belt is chiefly of devonian tuff, tuffaceous schist, marble relatively stable in strata and manifested by regional asymmetric fold easi - westward in axis, with well developed superimposed overthrust south - northward which controlled the whole structural framework in this area
南帶以泥盆系凝灰巖、凝灰質片巖、大理巖為主,地層相對穩定,表現為軸向東西的區域性不對稱褶皺,廣泛分佈控制全區構造格局的南北向逆沖推覆的疊瓦式斷裂。The axisymmetric mixed boundary - value problem of the vertical vibration of a rigid foundation on saturated layered soil subgrade
上覆單相彈性層的飽和地基上剛性基礎豎向振動的軸對稱混合邊值問題According to the elastic bucking theory this paper reviews and compares the calculations that such member bend around the reat axis and the hollow axis as well as bend with torsion around the hollow axis. here this paper presents a formula of calculating b used in with the h - shaped anglicizing element. meanwhile, this paper deduces out a formula of calculating b. by, which the member could be controlled to only buckle around the real axis
本文根據彈性屈曲理論對雙肢格構式單軸對稱綴板柱繞實軸、虛軸以及彎扭屈曲進行了計算分析和比較,提出了繞虛軸側向屈曲的換算長細比_ ( oy ) = ( y ~ 2 + l ~ 2 ) ~ ( 1 / 2 )中的值用h計算單元指出的計算公式,同時推導出了單軸對稱綴板柱只出現繞實軸彎曲屈曲的最小肢間間距b 。The analytic solutions of isotropic elastic layered soil under axisymmetrical, rectangular and strip loads were derived from the basic equations of isotropic elastic mechanics by means of transfer - matrix method. by the result, can easily calculate the additional stress and settlement in layered soil. but these solutions could not properly assess the errors from the elastomer of the bottom layer in foundation soil
從各向同性彈性力學基本方程出發,利用傳遞矩陣法推導出的多層彈性地基問題在軸對稱荷載、矩形荷載和條形荷載作用下附加應力與沉降的解析解,可以方便地求出層狀地基中的附加應力和沉降,而他們均沒有考慮最下層彈性體計算深度引起的誤差影響。Based on the singular stress field with multiple singularities, numerical methods to determine the orders of the multiple stress singularities are proposed from the numerical solutions obtained by common numerical procedures
其次,基於橫觀各向同性壓電材料空間軸對稱變形問題的通解,利用特徵展開法,給出了奇異點附近的位移場和奇異應力場。Abstract : based on the c. carathe " odory theorem, several conclusions related to near - axis image formation in an axial symmetric optical system have been verified by means of the projection transformation
文摘:以卡拉西奧多里定理為基礎,用投影變換驗證了在均勻的各向同性介質中具有軸對稱性的光學系統近軸成象的結論。分享友人