鐓粗比 的英文怎麼說

中文拼音 [dūn]
鐓粗比 英文
upset ratio
  • : 鐓同 「淳」
  • : Ⅰ形容詞1 (長條東西直徑大的) wide (in diameter); thick 2 (長條東西兩長邊的距離寬的) wide (i...
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  1. Abstract : based on the result of visioplasticity test, the law of tube central upsetting was created, and the calculated method of displacement field and strain field were obtained. in this study, the four deformation modes were showed when ratio of height to thickness of tubular billet is greater than 3. the four modes were related to the distribution of strainless - plane

    文摘:根據管坯視塑性實驗法的實驗結果,分析了無芯軸支撐條件下,管坯中部鍛的變形規律,闡述了變形區位移場、應變場的計算方法;通過對實驗結果的分析,得出了當鐓粗比3 ,管坯中部鍛時,內壁呈現四種典型的變形模式;論述了分流面的分佈與四種變形模式之間的轉化關系。
  2. Thermodynamic couple numerical simulation of ring compression of pure aluminum and tube extrusion of superalloy gh4169 is done by adopting the constant friction model and the present friction model in the paper. numerical results are compared with experimental investigations to validate the correction and nicety of the present friction model of bulk metal forming processes. the accuracy of the finite element simulation of bulk forming processes can be improved by adopting the present friction model

    採用二次開發msc . superform軟體,對純鋁圓環和高溫合金gh4169管材擠壓過程進行了熱力耦合數值模擬,較了採用本文提出的多因素摩擦模型和常摩擦模型對圓環和管材擠壓過程變形行為的影響,通過與實驗結果的較,驗證了本文的摩擦模型及其參數值的正確性,也說明了多因素摩擦模型提高了有限元模擬的精度。
  3. Abstract : in this paper, the stress field in a concave plank being upset is resolved by analytic mathematical method of plastic mechanics, the relation between the geometric parameter ( dimension ratio, concave shape ) and friction shearing stress is determined for upsetting a plank free of tension stress

    文摘:本文用塑性力學初等解析法求解了凹形板坯時的應力場,確定了無拉應力時坯料幾何參數(尺寸、凹形形狀)與坯料端面摩擦剪應力的關系。
  4. After description of slide line fields according to the different proportion of width / diameter, the stress function in flat plate upsetting has been determined, the changing rule of slide line fields been described, the process of column upsetting been simulated by using the software of abaqus and the theoretical value been proved through comparing the simulation value with the theoretical value

    摘要本文應用滑移線理論來求解平板模型,描述了在不同寬徑下的滑移線場,確立該模型單元的應力場表達式,描述其滑移線場的變化規律,最後運用abaqus軟體對圓柱體進行數值模擬,將模擬值與理論值進行對,對理論值進行驗證。
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