FEM analysis and experiment study of non-mandrel double-pass roll extrusion process of shaped tube;
异型管辊挤成型过程的数值模拟与实验研究
The non-mandrel double-pass roll extrusion process of square shaped tube was simulated using nonlinear FEM software.
利用大型非线性有限元分析软件对异型管双道次无芯棒辊挤成型过程进行了数值模拟,得到了成型过程中应力与变形的分布和变化情况以及变形后的异型管的断面形状,并通过实验验证了有限元分析的正确性。
Firstly, the radiator heat transfer mechanism was analyzed and studied in this article, in order to develop new types of section tube steel radiator in accordance with the heat efficiency improving, then the structure was determined, in addition the radiating condition of section tube steel radiator and tubular radiator was simulated by FLUENT software.
本文首先进行散热器的传热机理分析和研究,从提高散热效果出发,研制新型异型管钢制散热器,确定其结构形式,并利用FLUENT软件模拟所研制异型管散热器与圆管散热器的散热情况,通过比较两种散热器单管温度分布、湍流分布以及二者在设定的房间内温度场、速度场,从而证明所研制的异型管钢制散热器在散热效果方面具有明显的优势。
Tooling design method is very important to form the shaped tube.
异型钢管成型的轧辊设计是生产中的关键技术,采用计算机辅助设计技术,实现了高精度、复杂轮廓轧辊的优化设计,缩短了轧辊设计周期,降低了制造调试成本,使得异型管的成型设计不再是主要依赖设计者的经验以及依靠调试修正的试错法。
A new type of construction mold in taking shape of unusual tube;
新型结构异型管材成形模具
Design and Performance Test of Steel Shape Tube Radiator
钢质异型管散热器的设计与性能测试
PRODUCTION OF SHAPED－TUBES BY CHELYABINSK STEEL TUBE WORKS，RUSSIA WITH CONTINUOUS ELECTRIC WELD PIPE MILL PLANT
俄罗斯车里雅宾斯克钢管厂在连续式电焊管机组上生产异型管
The Flow and Heat Transfer Characteristics of Profiled-tube Used in Direct Air-cooled Power Plant;
电站直接空冷系统异型管的流动与换热特性
heterojunction bipolar transistor
异质结双极型晶体管
The Knowledge Worker s Different Compensation Management Based on Heterogeneity;
基于异质性的知识型员工差异化薪酬管理
Cold drawn seamless special-shape steel pipe
GB/T3094-1982冷拔无缝异型钢管
A Research on the Gender Differences of Psychological Types Between Chinese and Australian Managers
中澳管理者人格类型的性别差异研究
Research on Traffic Management in Heterogeneous Wireless Networks
异构无线网络中流量管理模型的研究
The Influence of Tracheal Epithelial Cell Effects to OB in Tracheal Heterotopic Transplantation Model
气管异位移植模型中气管上皮细胞对OB的影响
Histological Types and Significance of Bronchial and Bronchiolo-alveolar Epithelial Dysplasia;
支气管肺泡上皮异型增生组织学类型及其意义
Malleable cast iron pipe fittings--Type size--Reducing elbows
GB/T3289.4-1982可锻铸铁管路连接件型式尺寸异径弯头
Malleable cast iron pipe fittings--Type size--Reducing crosses
GB/T3289.21-1982可锻铸铁管路连接件型式尺寸异径四通
In this book we also discuss nonlasing heterojunction diodes.
本书也讨论了非激光型的异质结发光二极管。
The Effect of Homeobox Gene on Pathogenesis of Hemangioma in Vitro;
同源异型盒基因与血管瘤发病机制的实验研究
Semantic-Based P2P Model for Heterogeneous Data Management;
对等网络环境下基于语义的异构数据管理模型
The Research and Development of the New Heat Exchanger with Different Diameter Tubes and Holding Structure;
新型异径布管夹持结构换热器的研究与开发
Preliminary Research in Establishment of Esophageal Carcinoma Heterotopic Transplantation Model in SCID Mice;
食管癌小鼠异位移植模型建立的初步探讨
Theoretical and Experimental Research of Circular Tubular Joints;
空间异型钢管相贯节点的理论与试验研究