伸展軸 的英文怎麼說
中文拼音 [shēnzhǎnzhóu]
伸展軸
英文
dilatation axis-
In this dissertation, the development survey, research actualities and application prospect of vamt are introduced at first, and the models of kinematics, dynamics and linear motor servo are analyzed then. currently the dynamics model is complex or established mechanically, which restricts the study of control theories. thus this dissertation present a simple and easy - realized control idea, namely, the fore and torque of every leg determined by the inverse - solution of mechanics are regarded as changeable load force ( disturbance ) applied in motor, the elongation of the leg or displacement of sliding is regarded as the output of linear servo system
本文首先介紹了虛擬軸機床的發展概況、研究現狀和應用前景，然後對其運動學、動力學、直線伺服系統模型進行分析，針對目前動力學模型過于復雜或完全從機構學角度建立不便於控制的問題，提出了簡單、易於實現的控制思想，即將虛擬軸機床的動力學方程反解所確定的各桿受力（矩）視為電機的可變負載力，以桿長伸縮量或滑塊位移為伺服系統輸出，從此構成位置閉壞，實現軌跡跟蹤控制。Fatigue experiments were performed to obtain the fatigue lifetime under the different loading. the parameters for law of the fatigue crack growth were obtained by crack growth experiments. in order to study the fatigue characteristics at high temperature, creep tests were also done
本文對多種典型焊接試件開展了諸多的試驗研究工作：進行單軸靜載拉伸試驗以確定構件的強度；進行疲勞壽命試驗以測得疲勞壽命曲線；進行疲勞裂紋擴展試驗以獲得試件的疲勞裂紋擴展規律paris公式；進行蠕變試驗以考察焊接試件疲勞持久特性；進行剩餘壽命試驗以獲得試件的剩餘壽命。This article is totally divided into six chapters. it takes urbanization as background, and takes mountain cities as research objects, and takes spatial form as clues. lt analysis by synthesis the natural factor and humanistic factor and builds up the motive mechanism of spacial expansion and research the four appropriate pattern of spacial expansion : the layer expansion mode, the axis expansion mode, the centralized mode, the jumping expansion mode
本文共分六章，以城市化快速發展為背景，以山地城市為研究對象，以山地城市空間形態演變為線索，對山地城市的自然和人文影響因子及其形態進行了分析，建構了山地城市空間擴展的動力機制，並通過與平原城市的比較對照及實踐例證，闡述了山地城市空間擴展的四種典型模式：緊湊圈層式、軸向伸展式、集約內涵式和多核跳躍式。The proposed model - beam - particle model is validated to simulate some routine tests of concrete which including uniaxial compressive test and uniaxial tensile test to prove that the numerical model can effectively to describe the complete failure process caused by the initiation, propagation and coalescence of cracks. the influence of the meso - mechanical properties to the macroscopic failure behavior is discussed in this paper. the proposed model is employed to simulate the dynamic failure process of concrete under impact loading, and analyse the failure behavior of concrete with different impacting velocity
本文建立了混凝土的梁-顆粒數值模型，並利用該模型進行了混凝土在單軸壓縮和拉伸載荷作用下，混凝土從微裂紋的萌生、擴展、貫通直到宏觀裂紋產生導致破壞的全過程的數值模擬，探討了混凝土材料細觀結構對其宏觀力學行為的影響；利用該數值模型，模擬了鋼彈以一定的初始速率垂直侵徹混凝土圓板的動態過程，對計算結果進行了動畫顯示，並分析了不同鋼彈初始速率對混凝土圓板破壞形式的影響。3 development axes ( eastern, central and western ) will branch out from this linear cluster group to form a w or m shaped network of cluster development to cater for the future growth of the city
由這個按直線排列的中心會有3條向東、中、西方伸展的發展軸，形成一個呈「 w 」或「 m 」字型的發展區域網路，以滿足深圳市日後的發展需要（Early age cracking of concrete has re - emerged as an important issue all over the world in recent years. the stress, due to restrained volume change related to thermal deformation and shrinkage in the early age concrete, is the main driving force for the deleterious cracking in the construction stage. during the development of the stress, creep, a very important property of concrete, is always developing. creep contributes to 40 ? - 50 ? reduction of the elastically induced stress in the restrained specimen. ring test, a qualitative test, can provide information to assess the potential for cracking of different concrete. an overview of ring test developed in recent years and mechanism of uniaxial tensile creep test is described in this paper at first. then, an innovative test equipment based on ring test is outlined
近年來混凝土早期裂縫問題再次引起全球工程界的廣泛關注.早期混凝土由於體積變形受到約束而產生的應力是導致混凝土開裂的主要因素.在混凝土應力發展的同時，混凝土徐變也在同時發生著變化.有研究表明，徐變能減少40 ? - 50 ?的早期應力.圓環試驗是用於定性評價混凝土材料抗裂性能的試驗方法之一.本文首先分析了圓環試驗和單軸拉伸徐變試驗的原理，創造性地將圓環試驗用於測量早期混凝土的干縮徐變，並設計了試驗方案The degree of funds ’ herding show certain regularity in terms of the scale of circulating stock, the former yield of stock and different industry sort. the test classified by funds ’ investment style shows all sort of funds have nearly the same herding degree
隨后探求我國基金羊群行為的具體成因並判斷基金羊群行為現象的發展趨勢，得出在雙重因素影響下，整條趨勢線表現為先升后降，最終趨近於x軸並無限延伸。The contents of this study are as follows : 1. the techniques of mechanical property test that have been used for mems are summarized. the method and process of the uniaxial tension test methods are described in details
論文主要包括以下幾個方面的內容： 1 ）綜述了國內外mems材料力學性能的測試方法及進展，特別是對單軸拉伸作了詳細的概括與分析，為本文的研究工作提供參考。分享友人