contact geometry 中文意思是什麼
contact geometry
解釋
切觸幾何-
Aim of this study was to meet the need for development of tribological parts in pumps. at room temperature tribological properties of different sliding pairs of silicon carbide and alumina - based ceramics were tested using a laboratory tribometer in the ring - on - plate geometry under reciprocating sliding linear contact in different media, such as distilled water, aggressive media and air
本文針對目前泵用摩擦零部件材料發展的需要，在實驗室摩擦磨損試驗機上研究了按環/塊線接觸方式作往復運動條件下的碳化硅和氧化鋁基陶瓷材料摩擦副在水、化學腐蝕性介質作潤滑劑和無潤滑時室溫下的摩擦磨損特性。 -
The main popular theoretical method adopted to study end - plate connection is finite element technique under monotonic loading at present. this paper applies nonlinear ( material, geometry and contact ) finite element method to analyze the behaviors of connections under cyclic load at fist time. contact elements are set between end plate and column flange, screw cap and neighborhood plane, bolt bar and hole
對于端板連接的理論分析，目前國內外的研究主要局限在單向加載有限元分析范疇，本文首次採用三維非線性（包括材料、幾何與狀態非線性）有限元對端板連接進行了循環加載分析，端板與柱翼緣間、螺栓頭（帽）與相鄰板件間、螺栓桿與孔壁間都設置了反映邊界狀態的接觸單元。 -
According to different research objectives, four kinds of vehicle dynamic models ( named from model a to model d ) and two types of train dynamic models ( model e and model f ) are established in this thesis. during the modeling process of the vehicle and train systems, nonlinearities arising from wheel / rail contact geometry, wheel / rail interactive forces and suspension characteristics are fully considered. the modeling methods about vestibule diaphragm, coupler and draft gear are introduced, too
本文按照研究目的的不同，建立了4種車輛動力學模型（模型a模型d ）和2種列車動力學模型（模型e和模型f ） ，建模過程中盡可能多地考慮了列車（車輛）系統中的各種非線性因素，詳細給出了風擋裝置、車鉤及緩沖器的具體建模方法。 -
Established the system of coordinates of roll testing, getting the parameters of equation of tooth face by solving the non - linear equations set ; according to the differential geometry and meshing principle, deduce the curvature parameters of tooth face and tooth profile, and get the parameters of instantaneous contact ellipse. emulate the contact trace and contact area of the working tooth face, and drawing the instantaneous drive ratio error curve
建立了克林貝格擺線齒錐齒輪嚙合分析的對滾模型，通過對非線性方程組的迭代求解，得到齒面方程的各個參數;由微分幾何和切齒嚙合原理推導了齒面上齒廓和齒線方向的曲率參數，得到了瞬時接觸橢圓的參數。根據設計參數和機床調整參數繪制了工作齒面的接觸軌跡和接觸區圖形，並求得了瞬時傳動比的誤差曲線。 -
This paper first conducts the research to the steel wire roller conveyer ball bearing rolling body and the steel wire roller conveyer spot contact question, gives the main geometry parameter of the zone of contact by the hertz contact theory, stress extreme value as well as contact body elasticity approach quantity formula, and acts according to the practical application to carry on the simplification, calculates the main parameter of the bearing zone
本論文首先對鋼絲滾道球軸承滾動體與鋼絲滾道的點接觸問題進行研究，由hertz接觸理論給出接觸區的主要幾何參數，應力極值以及接觸體彈性趨近量的計算公式，並根據實際應用進行簡化，計算出課題所研究軸承接觸區的主要參數。 -
Abstract : three - dimension wheel - rail contact geometry is taken into account in studying the vibration between bridge and vehicle. the iteration method of wheel - rail creep force is proposed to improve the existed calculating method
文摘:對車橋耦合振動研究中輪軌關系的線性方法進行了改進，提出考慮三維非線性輪軌接觸幾何，採用迭代法求解法向力和蠕滑系數。 -
According to the differential geometry theory, the principle curvatures and principle relative curvature of the spur gear and the fg in line contact and point contact, the tooth surface relative speed and the tooth contact interface are analyzed, whose distributing on the tooth surface are visualized by computer
在齒面的幾何特性研究中，利用微分幾何的原理分析了圓柱齒輪和面齒輪的齒面曲率、線接觸和點接觸面齒輪傳動的主誘導法曲率以及嚙合過程中齒面的相對速度和接觸區域計算問題，並獲得有益的結論。 -
3 ) a 3 - d geometry and finite element model of the assembly of the obturator of the breech mechanism is established. quasi - static and dynamic finite element analysis of stiffness, strength and obturating performance of the obturator of the breech mechanism is carried out, based on elastoplastic theory and multi - body contact algorithm, and the simulation results coincide with experimental results, further, th e effect of friction factor on its obturating performance is investigated
建立了炮閂閉氣結構的三維裝配體幾何實體模型和有限元模型，對炮閂閉氣結構剛強度和閉氣性能進行了準靜態及動態多體接觸彈塑性有限元分析，分析結果與試驗結果相吻合，進一步研究了摩擦系數對其閉氣性能的影響。 -
In the rotor design, it makes a detailed calculation for all the geometry feature parameters including geometry dimensions, contact line length, blowhole area and flow cross - section area and the thermodynamic feature parameters such as cooling capacity, shaft power and so on
在轉子設計方面，對全部幾何特性參數，包括幾何尺寸、接觸線長度、泄漏三角形面積和面積利用系數等以及包括製冷量、軸功率等冷水機組熱力特性參數進行了詳細計算。 -
Using the general finite element programming package of ansys10. 0, the study of gabled frames beam - column end - plate connections is made, considering synthetically nonlinear ( material, geometry and contact ), bolt pretension forces and ratio of axial compression stress to strength. elastic - plastic finite element analyses are carried out among 28 species of 3 series under monotonic loads, in order to discuss the influence of parameters including stiffness of end - plate, bolt diameter, friction coefficients and so on
本文使用通用有限元軟體ansys10 . 0綜合考慮了三重非線性（材料非線性、幾何非線性以及狀態非線性）的影響，同時考慮了螺栓預拉力的影響，對考慮端板厚度、端板加勁肋的設置、螺栓直徑、摩擦系數等參數不同的3個系列（端板系列，螺栓直徑系列，摩擦系數系列） 28個試件進行了有限元數值模擬，對連接節點的性能進行了分析研究。 -
The contact deformation at transient engaging point is derived from deeply analyzing geometric property and kinematics relationship between the two action flanks by use of engagement principle, differential geometry, elastic and plastic mechanics, etc
運用嚙合原理、微分幾何和彈塑性力學等基礎知識，對齒面間的幾何性質和運動關系進行深入細致的分析研究，計算各瞬態嚙合點的接觸變形。 -
As a result, shifting of the fundamental frequencies and redistribution of stress in the blade base possibly cause failure of the blade. a three - dimensional finite element model of a blade and its fir - tree attachments have been constructed and analyzed with taking into account of contact nonlinearity in the attachments and large deformation effect of the blade. the geometry mismatch was introduced into the finite element model by defining gaps between two contact surfaces in the attachments
分析結果表明葉根誤差發生的位置對葉片彎曲振型的固有頻率影響較大，對扭轉振型影響較小;誤差的大小對葉片各階固有頻率影響均較小，但對葉根應力分佈有影響;比較發現，在計算固有頻率時，將葉片在葉根處簡單地處理成固支位移邊界是不合理的。 -
Manifold, as the main theme of differential geometry and analysissitus, has a basic structure composed of finite cover system and contact functions between covers, which could be overlapped or even folded
與通常的網格不同，覆蓋可重疊或折疊產生一個組合空間，因此流形方法是追求一切空間上的所有解法。 -
With such a geometry, the final approach for physical contact occurs under much higher rates of angular change, making terminal guidance much more difficult
幾何規律使這種攻擊最後的角度變大，從而更不容易導引。 -
Different vibration characteristics between the two models are discussed. geometry mismatch in a turbine blade root, which arose in manufacturing process or caused by wearing out during service, leads to contact conditions changed in fir - tree attachments
汽輪機葉根製造尺寸誤差或運行磨損造成的尺寸改變會導致葉根與輪盤接觸狀態變化，進而引起葉片固有頻率發生漂移，並有可能接近共振頻率而導致葉片事故。 -
In practical level, the paper puts forward some proposes, such as " using dynamic geometry software ", " extending curriculum ' s extent ", " integrating visual geometry ", " using pattern in algebraic teaching ", " popularizing shape calculator ", " turning teacher ' s teaching concept ", and so on. in theoretical level, the paper puts forward " one base, two bases, four emphases " for our country ' s mathematics curriculum reform. namely, the reform should be based on dialectical materialism, carrying forward the fine traditions of " two bases " and " basic ability ", paying attention to students " emotion and discovering process, integration of technology, the contact between mathematics study and life a, pluralistic evaluate
在操作層面，關于「空間與圖形」內容標準提出「動態幾何軟體的應用」 、 「擴大課程的廣度」和「直觀幾何的整合」的建議，關于「數與代數」標準提出「模式的引入」和「圖形計算器的推廣」的建議，關于「統計與概率」標準提出「數學分支的整合」 、 「轉變教師的教學觀念」和「計算工具的使用」的建議；在理論探索層面，提出「一個基礎，兩個基本點，四個注重」的改革思路，即：以辯證唯物主義為哲學基礎，發揚「雙基」和「基本能力」培養的傳統優勢，注重學生的情感體驗和發現過程，注重技術與數學教學的整合，注重數學學習與學生生活空間的聯系，注重評價方式的多元化。
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