geometric vertical 中文意思是什麼
geometric vertical
解釋
地向徑向-
Abstract : based on the principle of mininmum potential and using rayleigh - ritz method, the geometric non - linear analysis of higher bridge piers was solved in this paper. the new concept of equivalent horizontal force proposed by the author may be casily to calculate the second effect, which was produced due to the vertical forces and resisted by the piers and rubber pad bearings incorporately. the simple formula in this paper are applicable to calculate by hand, understood clearly without computation of successive iteration, higher precision and graspable easily for the disigmer therefore it has the practical significance
文摘:根據最小勢能原理，用瑞雷-里茲法解決了高橋墩的幾何非線性分析問題；其次，提出了等效水平力的新概念，可以方便地解決橋墩和板式橡膠支座聯合抵抗垂直力所產生的二次效應問題.筆者提出適合於手算的簡便計算公式，概念明確，勿須迭代運算，精度較高，易為設計人員掌握，因此具有實用價值 -
Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。 -
Z test conditions for machining centres - geometric tests for machines with integral indexable or continuous universal heads vertical z - axis
加工中心檢驗條件.第3部分:分度或連續的萬能主軸頭機床的幾何精度檢驗 -
Machine tools - test conditions of machining centres - part 3 : geometric tests for machines with integral indexable or continuous universal heads vertical z - axis iso 10791 - 3 : 1998
機床.加工中心的試驗條件.第3部分:分度或連續的萬能 -
Z test conditions for machining centres. part 3 : geometric tests for machines with integral indexable or continuous universal heads vertical z - axis
多工序數控加工中心的試驗條件.第3部分:帶整體可調節定位的或連續萬能工作臺的機床幾何尺寸試驗 -
Test conditions for machining centers - part 3 : geometric tests for machines with integral indexable or continuous universal heads vertical z - axis
多工序自動數字控制機床加工中心的試驗條件.第3部分:帶總組合工位轉臺或連續通用頭的機床的幾何試驗 -
Abstract : the effects of airfoil geometric parameters on wing " s spacial and polarized scattering characteristics have been systematically revealed. the results of the study indicated that the calculating value of diffraction from trailing edge by using the formula of the straight wedge is very far from experimental results for vertical polarization, and the contribution of thickness of the trailing edge to scattering must be considered in the calculation. the scattering peak of leading edge depends only on radius of airfoil for horizontal polarization. but for vertical polarization, it depends on maximum thickness and the location of maximum thickness. engineering formulas for evaluating all scattering peaks were given in the paper. it is important for the design of low - rcs wing
文摘:系統地揭示了翼形幾何參數對機翼的空間散射特性、極化散射特性的影響規律.研究發現，在垂直極化狀態下用理論尖劈公式計算機翼后緣繞射的計算結果與實驗結果相差甚遠.提出在垂直極化狀態下機翼后緣繞射的計算必須將后緣厚度考慮在內的見解.對於水平極化，前緣散射波峰只與前緣半徑有關；而對於垂直極化，前緣散射波峰與翼形最大厚度以及最大厚度位置有關.給出前後緣散射波峰的工程估算公式，為低雷達散射截面（ rcs ）機翼設計提供依據 -
Test conditions of machining centres. part 2 : geometric tests for machines with vertical spindle
加工中心.檢驗條件.第2部分:立式加工中心幾何精度檢驗 -
Test conditions of precision machining centres. part 2 : geometric tests of vertical machining centres
精密加工中心.檢驗條件.第2部分:立式加工中心幾何精度檢驗 -
Z test conditions for machining centres - part 2 : geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis vertical z - axis
多工序自動數控機床加工中心的試驗條件.第2部分:有豎軸或帶垂直主旋轉軸 -
A method for extracting vertical lines of buildings based on geometric information of object space
基於物方幾何約束提取建築物垂直邊緣 -
Secondly, according to convex geometric characteristics, a common - perpendicular - line algorithm is developed for the distance between the convex nurbs surfaces by making surfaces discrete, approximating the distance by one between convex hulls of discrete surfaces and solving a linear programming problem to get their vertical projective length on common perpendicular direction, that is, the original distance
然後，針對凸曲面的幾何特徵，給出了nurbs凸曲面間距離求解的公垂線法和切平面法。公垂線法是把曲面間的距離求解問題轉化成曲面的離散點生成的凸殼間的距離，再歸之為兩凸殼在其公垂線上投影集合間的距離，由此抽象成一個線性規劃問題，估算出近點對。
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