長徑圓規 的英文怎麼說
中文拼音 [zhǎngjìngyuánguī]
長徑圓規
英文
beam compasses-
Based on the close analysis of the influence factors of the vertical bearing capacity, circular aperture extension theory is employed to establish the computing formulas for the pile vertical stress and the foundation vertical bearing capacity, respectively. moreover, with analyzing the features of the calculation parameters such as materials of gunite mortar, jet pressure, diameter of the jet pipe, pile length, pile layout, a design theory for chemical churning pile composite foundation is proposed. then, the variation of the pipe deformation with loads, the deformation coordination of pile and soil are studied
在此基礎上深入探討了旋噴樁的樁土受力特性及其復合地基的加固機理,從影響旋噴樁復合地基豎向承載力的因素入手,基於圓孔擴張理論給出了樁體豎向應力及旋噴樁復合地基的豎向承載力計算公式;通過對噴射漿液、噴射壓力選取、噴射直徑估算、樁長及樁位設計等各種計算參數的深入分析和研究,提出了一套相應的旋噴樁復合地基設計計算方法;通過計算分析,深入探討了旋噴樁復合地基變形隨荷載變化規律、樁和樁間土變形協調關系、樁土應力比及復合地基壓縮模量的確定,並提出相應的設計方法和修正參數;此外,結合工程應用,對旋噴樁復合地基的施工技術及其現場質量檢測方法進行了較全面的探討。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。Characteristic circle is adopted for characteristic mark ; a new concept, “ characteristic diameter ”, is put forward ; the length and the position of the characteristic diameter ’ s image is adopted for the basic “ characteristic parameters ” ; and a new “ resolving model ” is established based on perspective projection principle and the speciality of “ characteristic diameter ” in this article, so that the normal direction of target plane can be got without calibrating camera parameters in real time. it only need basic mathematic tools
本文採用特徵圓作為靶面上的「特徵標志」 ;提出了「特徵直徑」的概念,採用特徵直徑及其在像面上的透視投影的位置和長度作為基本的「特徵參數」 ;根據透視投影的規律,應用特徵直徑的特性,建立了新的「解算模型」 ,無須在現場標定攝像機的參數,只需採用基本的數學工具即可實時解算出靶面法線的方向。For cylinder diameters, besides two point size, actual size and local actual size, the national standard of china also specified computing sizes, which included area diameter, perimeter diameter and volume diameter, and global sizes, which included least square diameter, maximum inscribed diameter and minimum circumscribed diameter
摘要對于圓柱體的直徑尺寸,除了兩點尺寸、實際尺寸以及局部實際尺寸外,國家標準還將規定計算尺寸(包括面積直徑、周長直徑和體積直徑)與全局尺寸(包括最小二乘直徑、最大內接直徑和最小外接直徑) 。The threshold speed and the typical characteristics of the oil whip of the system are simulated under the nonlinear model of oil film force, and the state of motion and type of the bifurcation are analyzed by floquet multiplicators which is computed by the shooting method. secondly, the the nonlinear dynamical model of the low - pressure rotor - bearing system by column bearing with reduced dimensions is presented. the numerical results show the rule of the amplitude with the eccentricity of rotor, the length - to - diameter ratio, oil viscosity and the clearance - to - radius ratio of the bearing under the definite speed
其次,對降維后的低壓轉子?軸承系統的非線性動力學方程,計算了圓柱瓦軸承支撐的轉子系統的振動穩定性在固定轉速下隨偏心距、軸承長徑比、潤滑油動力粘度和軸承間隙比的變化規律,並分析了轉子前軸承軸頸的失穩轉速與轉子偏心距、軸承長徑比、潤滑油動力粘度和軸承間隙比之間的關系,同時利用floquet理論分析其運動狀態和分岔類型。分享友人