linear elongation 中文意思是什麼
linear elongation
解釋
線性伸長- linear : adj. 1. 線的，直線的。2. 長度的。3. 【數學】一次的，線性的。4. 【動、植】線狀的；細長的。5. 由線條組成的，以線條為主的，強調線條的。
- elongation : n. 1. 延長，伸長；延長線；伸張度。2. 【天文學】距角。
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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。 -
Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great
採用雙向楔形壓制，大尺寸噴射沉積5a06鋁合金楔壓坯的組織和性能變化具有如下特點:當高向變形量為20 %時，大的孔洞變形破碎為小的孔洞，或呈線狀孔;隨著高向變形量的增加，顆粒進一步變形，孔洞進一步破碎，大孔「吞併」小孔，小孔塌陷並逐步消失;當高向變形量達到60 %時，孔洞量大為減少，材料基本緻密，組織趨于均勻，楔壓坯料的密度、硬度變化曲線接近水平線，坯料的相對密度達99 . 7 % ，抗拉強度_ b = 408mpa ，屈服強度_ （ 0 . 2 ） = 289mpa ，延伸率= 13 . 6 % ;對比其它的壓制溫度，在450楔形壓制的坯料組織均勻，孔洞及顆粒邊界基本消失，顆粒之間冶金結合良好。
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