板料成形 的英文怎麼說
中文拼音 [bǎnliàochéngxíng]
板料成形
英文
sheet forming-
The simulations of the blank forming process is always a very pop question in the domain of plasticity forming. it has very important significance as to making certain the figure of the blank roughcast calculating strain and stress, establishing reasonable forming craft and designing mold
板料成形過程模擬一直是塑性成形領域研究的熱點問題，對于確定板料毛坯形狀、計算應力、應變分佈、制訂合理的成形工藝和模具設計有重要的意義。This thesis briefly analyzes some yield criteria and instability criteria to the sheet metal forming first. then according to the transformation rule from ultimate strain to ultimate stress, it establishes the mathematical calculation models of the forming limit stress diagram for the software development according to hill48 、 hill79 and hosford yield criterion irrespectively
本文首先分析了板料成形的屈服準則和失穩準則，然後根據極限應變到極限應力的轉換關系，分別採用hill48屈服準則、 hill79屈服準則和hosford屈服準則，建立了用於軟體開發的成形極限應力圖的數學計算模型。The predominant failure mode in stamping of sheet metal parts are wrinkling and fracture, in general, these defects may be eliminated by appropriate manipulated the blank holder forces
摘要起皺和斷裂是板料成形過程的主要失效模式，合理控製成形過程中壓邊力，可以消除這些缺陷，提高成形性能。Taking typical drawing workpiece circular cup as the research object, a stamping technological parameters artificial neural network ( ann ) model for bhf forecast has been built up
摘要壓邊力是板料成形中的一個重要的工藝參數，也是板料拉深成形中的重要控制手段。In order to solve the problem in traditional method of blank development, deformation theory and the assumption of ideal forming are adopted, and one step approach to design sheet metal forming is derived
摘要針對傳統的毛坯展開方法所存在的總量，本文採用形變理論並利用理想形變的假設，導出用於板料成形設計的逆演算法。To predict the forming limit in sheet metal forming, a ductile fracture criterion is introduced into the finite element simulation
摘要為了準確地預測板料成形極限，將韌性斷裂準則引入到有限元模擬中。Ideal forming and design of sheet metal forming
理想形變與板料成形設計One step finite element simulation of sheet metal forming
金屬板料成形的一步有限元模擬方法Abstract : in this paper, first fe simulation algorithms for contact search, contact constraint, and the calculation of contact and friction loads were established based on the analysis for contact friction problem in sheet metal forming. then the fe simulation model for contact friction problem in sheet metal forming was set up. at last, the efficiency & amp; stability of this model was proved to be satisfactory by the comparing numerical example and experiment results of skin stretch forming
文摘:本文在分析了板料成形過程接觸摩擦問題特點的基礎上，提出了接觸搜索、界面滑動約束、法向接觸力以及摩擦力計算等問題的有限元模擬演算法，建立了板料成形過程接觸摩擦問題的有限元模擬模型，最後通過數值算例與飛機蒙皮拉形模擬試驗結果的比較，驗證了此模型計算精度及數值穩定性良好。The improved one step fem and its application in sheet metal forming analysis
改進的一步模擬法及其在板料成形分析中的應用In this thesis, the ideal forming theory and its corresponding application aspects are primarily investigated
本文主要研究了理想成形理論及其在板料成形過程中的應用。Sheet forming is an appropriate method to produce lighter and thinner magnesium alloy parts
摘要用板料成形的方法對變形鎂合金進行加工可以製造更薄更輕的零件，符合輕質化的發展趨勢。Drawing process is the most typical and complicated in sheet metal forming. also is the widest applying pressing technology
拉深是沖壓板料成形工藝中最典型、最復雜的一種成形工藝，也是應用最廣的一種沖壓工藝。Abstract : the method of fast finite element analysis of sheet metal forming based on deformation theory was explored, and the computer program was implemented
文摘:研究了基於形變理論的金屬板料成形快速有限元分析的方法? ?反向方法，並實現了計算程序。Then this paper pointed out that dfc could predict the forming limit of metal sheet with low plasticity well and meantime take the change of forming path into account
指出利用韌性斷裂準則，不但能夠較好地預測塑性差的板料成形極限，而且還能考慮應變路徑的變化。Punch forming of sheet is used widely in the industries of auto, electric appliance and aviation, etc. the numerical simulation technology of sheet forming has been developed rapidly since 1970s. especially with the rapid development of computer, the numerical simulation technology of sheet forming has tended towards the practical stage and changed the traditional design of sheet punch forming
板料沖壓成形廣泛應用在汽車、電器、航空航天等工業部門， 20世紀70年代以來，板料成形數值模擬技術得到了迅速發展，特別是隨著計算機技術的飛速發展，板料成形數值模擬逐漸走向實用化階段，改變了傳統的板料沖壓成形的設計過程。This paper overviewed the prediction methods of forming limit in sheet metal forming, which included forming limit stress diagram, the maximum forming thinning ratio, forming limit diagram and ductile fracture criteria ( dfc )
摘要對板料成形中的成形極限應力圖、最大變薄率、成形極限圖以及韌性斷裂準則等預測成形極限的方法，進行了綜述和分析。In view of the above reason, this thesis adopts the forming limit stress diagram as the instability criterion due to its independence of strain paths, which is acknowledged at home and abroad in the field of sheet metal forming, and develops the applied software for the special purpose finite element analysis code dynaform in order to provide it with a new instability criterion
本文基於板成形專用有限元分析軟體dynaform ，以國內外板料成形領域認同的具有應變路徑獨立性優點的成形極限應力圖為判據進行了應用軟體的二次開發，以期為板成形有限元分析軟體提供一個新的失穩判據。The discrete optimization of boundary curve and the optimization of polygon clipping are discussed on the basis of the above research, this surface automatic mesh generation have applied to cae software successfully which can create high quality element. the method is steady and reliable. the speeding of the meshing is good
在上述技術研究的基礎上，將曲面自動網格劃分演算法成功應用於板料成形模擬的cae軟體中，該演算法具有自適應能力強，網格生成速度快，穩定可靠等優點。The finite element numerical simulation analysis is an important method to predict sheet metal instability in the sheet metal forming process. and the current general - purpose finite element codes all choose the strain - based forming limit diagram as the instability criterion, which has the limitation of correlative to the strain path. thus it is very inconvenient to study sheet metal forming under complex strain paths
有限元模擬是板料成形過程中預測板料失穩的重要手段，考慮到當前通用的有限元軟體都是以存在應變路徑相關性缺陷的基於應變的成形極限圖為失穩判據，以致在研究復雜應變路徑板成形時極為不便。分享友人