critical plane 中文意思是什麼
critical plane
解釋
臨界面-
And rock triaxial serve testing system is used, through model test involving bedded planes and a set of joint normal to the bedded planes in rock mass, multiple sliding failure affected by properties of joints and confining pressure is analysed, the condition triggering multiple sliding failure and characteristics of failure plane are given, under the co - action of inclination of connective joints ( bedded planes ), interlocking conditions of critical joints and confining pressure
並在室內利用巖石三軸剛性伺服機，通過模型試驗對巖體的層面和一組與層面正交的節理的情況進行模擬研究，分析了結構面性狀和圍壓對復合式滑移破壞的影響，給出了在貫通性結構面（層面）傾角、非貫通性結構面以及圍壓等因素共同作用下，節理化巖體發生復合式滑移破壞的條件以及破壞面特徵。 -
Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model
第二，討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表達式和對稱不穩定的判據，發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大，這有利於對稱不穩定的發生。第三，採用f平面、非靜力平衡、濾聲波模式，討論了中尺度垂直環流非線性攝動分析及演變方程。 -
Thirdly, from the idea of locally linear approximate, another tangent - plane algorithm is presented for the distance between the convex nurbs surfaces. the critical step is the construction of the support mapping by gjk and lc to search for nearest points, and emphases are laid on dealing with isotropic cases and choosing initial iterated points. it is also proved that no isotropism during iteration would take place if initial iterated points are positive points
切平面法是運用gjk和lc構造支撐映射的原理而設計的一個搜索近點對的迭代法，著重給出了迷向情況的處理和初始迭代點的選取方法，並證明了只要將初始迭代點取為陽點，就不會出現迷向情況。 -
The method for measuring the plane strain fracture toughness klc has been introduce to high polymer bonded explosives ( pbx ) by systematically studying technologies concerning the shape of specimen, the depth and its machining of crack, the loading rate, the measurement of critical fracture load, and the computation of klc, etc. the method has been used to test and study klc of three typical high polymer bonded explosives which are j2, jl, j3 respectively both at normal temperature and unmoral temperature
本文以高聚物粘結炸藥為研究對象，對測試高聚物粘結炸藥的平面應變斷裂韌度所涉及的樣品形狀、裂紋深度及裂紋制備、加載速度、臨界斷裂載荷p _ q的確定及平面應變斷裂韌度k _ （ ic ）的計算等方面進行深入研究，建立了較為完善的炸藥平面應變斷裂韌度測試方法。 -
In addition, in the paper we also studied the annihilation of ordinary hard bubbles ( ohb ) by screening in order to measure accurately the critical in - plane field range
另外，為了更加準確地測定ohb疇壁中的vbl軟化的臨界面內場范圍，本文對經過篩選的ohb在h _ （ ip ）作用下其疇壁中vbl的消失規律給予了研究。 -
By structure the bounded cubic systems in the plane, we prove that : 1 ) the system ( 1 ) have distribution of critical point with 5 - 4 ( 5 critical points with index + 1 and 4 critical points with index - 1 ), 3 - 2, 2 - 1, + 1 ; 2 ) the bounded cubic systems in the plane which has only one critical point with index + 1 have at least 11 structures ; 3 ) the distribution of finity critical points of bounded cubic systems with same topological structure near the equator have different struction
摘要通過構造有界的平面三次系統，證實了（ 1 ）其有限奇點的5 4 （ 5個奇點指標為+ 1 ，另4個奇點指標為1 ） 、 3 2 、 2 1 、 + 1四種分佈均可實現； （ 2 ）僅有一個指標為+ 1的有限奇點的有界三次系統至少有11種類型； （ 3 ）赤道附近軌線拓撲結構相同的有界三次系統它們有限奇點的分佈可以有不同類型。 -
If the planar failure arises without fixed plane in rock slope, the critical inclination of failure face is not only the function of slope angle and friction angle of failure face, but also the function of the height of failure part, the cohesion of failure face, and unit weight of failure body
摘要在巖石邊坡中，當出現平面滑坡時，如果邊坡內沒有確定的滑面，滑面的臨界傾角不僅僅是邊坡傾角和破壞面摩擦角的函數，而且還應該是滑體高度、破壞面的黏聚力和巖體重度的函數。 -
In the higher velocity, especially in the critical velocity, the continuous model is invalidity. 2, in this paper, assume that the track and wheels are ideally smooth and no carriage or wheel - axle bending vibrations occur. invoke the basic hypothesis of the bernoulli - euler theory of beams : namely, that plane cross - sections initially perpendicular to the axis during bending
2 、在對連續性模型的分析基礎上，假設軌道與車輪為理想光滑的、沒有車輛和輪軸激起的振動，引用bernoulli - euler梁理論的假設：即垂直於梁軸線的橫截面在彎曲過程中仍然垂直於梁的中性軸。 -
This paper introduce the research significance and critical technology about the laser communication between plane and satellite, summarizes the development on such technology domestic and aboard, studies on the theory which exterior environment and atmosphere have an effect on laser according to research needs, meanwhile, according to various parameters of laser communicate process, simulated researches the integral process
本文介紹了飛機與衛星之間激光通信的研究意義和關鍵技術，總結了國內外在該項技術上的進展情況，對通信過程中激光所受到的大氣以及其它外界環境的影響進行理論上的探討並建立數學模型，根據通信系統的需要建立局部計算機模擬模型，深入分析各種外在因素對激光通信系統的影響。並根據激光通信系統的相應參數，對整體的通信過程進行模擬研究。 -
Based on research of theory and methods, this thesis presents design scheme of the dynamic fault tree analysis platform dfta and implement the platform ; practices a dynamic fault tree analysis example of boeing 707 plane engine oil indication system and alarm system on the platform and gets top event occurrence rate 、 minimal cut sequence 、 probability importance sequence 、 structure importance sequence and critical importance sequence and presents system improvement suggestion based on the analysis results
在理論方法研究的基礎上，本文提出了動態故障樹分析平臺dfta的設計方案，並進行了實現;利用該軟體對波音707飛機發動機滑油壓力指示和警告系統進行了動態故障樹實例分析，得到了頂事件發生概率、最小順序割集、概率重要度排序、結構重要度排序、關鍵重要度排序等分析結果，並根據上述分析結果提出了系統設計改進建議。 -
To be convenient, we only study the motion of a helicopter in the critical plane, and a simplified point - mass model is used
然後，為了便於最優控制問題的分析和計算，本文只考慮直升機的二維運動，從而得出一個簡化的點質量模型。 -
In this dissertation, we study the global topological classification and coefficient conditions of the plane homogeneous fifth polynomial differential system the main techniques used in this thesis includes the methods of the global structure and coefficient conditions of the plane homogeneous quadratic and cubic system mentioned in the paper [ 1 ] of professor ye yanqian, and the paper [ 2 ] of professor li xue min, also includes the idea to high - order critical point of professor zhang zhifen, lu yulin and han yuliang etc. due to the degree of polynomial in the right of equal - sign crease, when we discuss the global structure, the more special directions, the more difficulty in drawing phase portraits of this system
本文主要討論一類平面齊五次多項式微分系統的全局拓撲結構及系數條件。借鑒了文獻[ 1 ]葉彥謙教授對平面齊二次系統的全局結構及系數條件和文獻[ 2 ]李學敏教授對平面齊三次系統的全局結構及系數條件的研究方法，同時綜合了張芷芬教授、陸毓麟教授、韓玉良教授等人對高次奇點的研究思想進行討論。這樣，由於等號右邊多項式次數的增加，討論系統的全局結構時，可能出現的特殊方向就會增加，在作全局相圖時，難度增大了。 -
The effect of different sizes of sections, modes and values of residual stresses are studied. through the analysis, the conclusion is arrived at that the universal slenderness ratio should be used to better correlate the stability of box section beams with the member length instead of the out - of - plane slenderness, and the stability coefficient is taken to be 1. 0 for practical used box girder. then, the elastic critical loads of box section beam - columns are obtained based on the gjelsvik theory, and the relationship between axis force p and moment m is given
最後，運用ansys通用有限元程序的beam189單元，引入初彎曲和殘余應力的影響，用考慮幾何和材料雙重非線性的有限元求解格式求得箱形柱在不同軸力和彎矩比例作用下的彈塑性極限承載力，通過對十幾個不同截面尺寸構件在不同長細比下的承載力計算，發現在軸力p遠大於彎矩m時，構件將是平面外失穩控制，而當軸力p遠小於彎矩m時，構件則以平面內失穩為主。 -
An experimental investigation on the transition in the boundary layer of horizontal plane with and without single two - dimensional roughness elements has been carried out in the wind tunnel. the distribution in normal and stream - wise directions of intensity of t - s wave excited by vibrating beam was measured in every condition. neutral curves were obtained by measuring the growth of the t - s wave at the normal critical location along the stream - wise direction
在風洞中對水平光滑平板以及加有粗糙元平板的邊界層轉捩進行了測量與研究，比較了不同情況下平板邊界層內由振動梁激勵生成的t - s波沿流向和法向強度的分佈規律，得到了相應的振型增長曲線以及中性曲線。 -
Based on the theory of fracture mechanics, the relation between the critical stress intensity factors for v - notch kc and the plane strain crack toughness k10c and the brittle fracture criterion of the maximum circumferential stress for single and double stress singularity with the v - notch problems are proposed. experiments were carried out using two kinds of v - notched specimens made out of plexiglas to verify this brittle fracture criterion
本文基於斷裂力學原理，推導出了型切口的臨界應力強度因子k _ c與材料的平面應變斷裂韌度k _ （ 10c ）之間的關系，給出了平面單奇異性和雙奇異性型切口問題的最大周向應力脆性斷裂準則，並用有機玻璃板材加工了兩種型切口試樣，進行了實驗驗證。 -
The out - of - plane stability of bending beam, which is made up with 2 beams and loaded by non - directional force, is studied. the bending and torsional deflection differential equation of each beam is established in critical condition. according to compatibility conditions of deformation, the characteristic equation is obtained to calculate out - of - plane stability of the cantilever bending beam
對兩節梁組成的彎曲梁在非保向力作用下的平面外失穩問題進行了研究，通過建立每節梁臨界狀態下彎曲和扭轉變形微分方程，根據桿件變形的邊界條件以及桿件之間的變形協調關系，得出了一端固定一端懸臂的彎曲梁在非保向力作用下平面外失穩的特徵方程。 -
New low cycle fatigue life criterion under nonproportional loading based on critical plane methods
新的非比例加載低周疲勞壽命估算方法 -
A multiaxial fatigue damage parameter for fibre - reinforced composite was presented based on critical plane approach and the multiaxial fatigue damage characteristics of composite were investigated
摘要基於臨界平面方法，提出一種用於纖維增強復合材料的多軸疲勞損傷參量，研究了復合材料多軸疲勞損傷特徵。 -
For multiaxial life prediction, the critical plane approach is better than that of others, however, the accuracy of life prediction is deeply influenced by the results of stress - strain analysis
在多軸疲勞壽命預測的問題上臨界平面法是一種比較好的方法，而影響臨界平面法預測結果精確度的主要因素是所進行的應力應變分析。 -
In the improved experiment the softening percentage of ohb was large at the critical in - plane field thus the critical in - plane field range related to the parameters of the samples was measured accurately in the paper. meanwhile facts have proved that ohb including less vbl is ohb which will lose vbl at the critical in - plane field
所以在本文中用比較準確的實驗方法測得了ohb疇壁中的vbl在面內場的作用下，存在一個與材料參量相關的臨界面內范圍h羅， h永] ，並且也證明了在臨界面內場h羅』時丟失vbl的ohb對應的是那些含vbl較少的ohbo
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