柱體發射器 的英文怎麼說
中文拼音 [zhùtǐfāshèqì]
柱體發射器
英文
cylinder emitter-
In this paper, micro - cavity semiconductor laser ( mcsl ) with pillar vertical - cavity surface - emitting structure ( vcsel ) which has potential applications in optical communication and optical interconnect is theoretically analyzed, the calculation model that used to discuss the modal performance of rectangular columnar and cylinder vcsel with oxidized aperture is established by using vector field model. the numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain against inside and outside radius of laser, the layer refractive index and pair number of bragg mirror, thickness, position and oxidized material ' s refractive index of oxidized aperture, in detail. more practically, considering dos shell of laser as non - perfect one, or supposing that dos shell is separated from the laser, we can obtain more significative results
本工作以矢量場模型出發，對具有誘人應用前景的柱形垂直腔面發射結構（ vcsel ）的微腔半導體激光器（ mcsl ）進行了理論分析，建立了用於分析方柱形和圓柱形結構具有氧化孔徑層的激光器的模式特性的理論模型；對圓柱形結構情況進行了數值模擬，得到了振蕩波長、閾值增益隨激光器內外半徑、 bragg反射鏡層折射率、周期數以及氧化孔徑層厚度、位置和氧化物折射率的詳細變化規律；為使理論計算更接近實際，將外加金屬包殼視為非理想導體，或將金屬包殼與激光器結構隔開，分別對這兩種情況下的結果進行了討論。Based on apdl, the design language of finite element analysis software ansys, and visual c + +, the software on acoustics design of underwater cylindrical shell structure is developed. when input parameter of the cylindrical shell in the interface redeveloped in this paper, the software execute the batch file of apdl in the vc process to establish the finite element modal and carry out the analysis, the analysis result and the vibration mode can also be displayed. furthermore, the software has been developed to process the acoustics optimization design of the finite cylindrical shell with stiffener in appointed frequency range
本論文從便於工程實際應用出發，對使用有限元分析軟體進行二次開發以方便結構振動分析及改進結構設計的方法和過程進行了研究，在此基礎上對水下航行器圓柱殼體的結構聲學特性進行了分析，在指定頻率區間，對結構以振動輻射聲功率級為目標函數進行了部分參數的結構優化設計，與此同時，為了方便有限元分析軟體的使用和簡化設計過程中大量重復的工作，利用ansys提供的參數化設計語言apdl （ ansysparametricdesignlanguage ）結合vc對有限元軟體ansys進行了二次開發，形成了一體化的水下圓柱殼體結構聲學設計軟體。The explosive mixture of the petrol engine is provided by a carburettor, but in the case of the diesel engine the supply is effected by an injection or jerk pump which forces a shot of fuel into each cylinder in turn according to the correct firing sequence
翻譯：汽油發動機由一個化油器輸送可燃混合氣體，而柴油發動機，由一個噴射泵或柱塞式燃油泵實現燃油供應，此泵根據正確的點火順序把少量燃油依次壓入每個汽缸。On the premise of summarizing former contributions in the field, and considering the universality of the cylindrical space with circular cross - section in industry, the author develop a novel ofpt structure, on which the design theories, numerical simulation, design of experimental system for plane structure, preliminary experiment and design of applied space structure are presented. the main contents of the thesis are that : put forward the novel ofpt pixel distribution and plane - light - path design theories and their empirical formulae. the numbers of the ofs units and their emitting rays can be decided by the requirements of image - reconstructed resolution and the size of the center unmeasured region
本論文在總結前人工作的前提下，充分兼顧了工業中具有圓形截面的圓柱形容器或管道普遍存在的事實，提出了一種新型的光纖過程層析成像結構，並從理論設計方法，具體結構模擬，平面結構實驗系統設計，初步實驗以及空間結構實用化設計、理論分析等方面進行了研究，主要的創新點在於：提出了一種用於工業過程監測與控制的新型光纖過程層析成像結構設計方法，並推導了該方法的經驗公式，該方法主要包括像素分配和平面光路結構設計，可以根據工程應用中圖像重建的解析度和圓形截面非測量區域所佔比例的要求，設計所需傳感單元的數目和傳感單元發射光線的數目；設計了一種新型的光纖過程層析成像結構，並對該結構進行了可行性分析和數值模擬。分享友人