COMPUTATIONAL MODEL OF THE PNEUMATIC FORMING OF AXISYMMETRIC POLYMERIC ARTICLES FROM PLANE PRELIMINARILY DRAWN BLANKS

Kh. Khoseini; B. V. Berdyshev

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COMPUTATIONAL MODEL OF THE PNEUMATIC FORMING OF AXISYMMETRIC POLYMERIC ARTICLES FROM PLANE PRELIMINARILY DRAWN BLANKS

机译：平面初拉毛坯轴对称聚合物的气态形成计算模型

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摘要

A method is presented for evaluation of variations in the thickness of articles produced by the combined method of mechanical and pneumatic shaping. The adequacy of the method is assessed by comparing theoretical results with practical data on the distribution of wall thickness in a specific article. Theoretical and practical distributions of the relative wall thickness of an article are indicated.

机译：提出了一种评估通过机械和气动成形的组合方法生产的制品的厚度变化的方法。通过将理论结果与有关特定文章中壁厚分布的实际数据进行比较，评估了该方法的适当性。指出了制品的相对壁厚的理论和实际分布。

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《Chemical and Petroleum Engineering》 |2005年第12期|p.573-578|共6页
作者
Kh. Khoseini; B. V. Berdyshev;
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作者单位

Moscow State University of Engineering Ecology (MGUIE);

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正文语种 eng
中图分类石油、天然气加工工业;
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1. FRACTURE DEFECTS IN POLYMERIC BLANKS DURING MECHANO-PNEUMATIC SHAPING OF AXISYMMETRIC ARTICLES [J] . Kh. Khoseini, B. V. Berdyshev Chemical and Petroleum Engineering . 2005,第7a8期

机译：对称轴机械力-气动成形过程中聚合物毛坯的断裂缺陷
2. DETERMINATION OF BLANK SIZE FOR NON AXISYMMETRIC AND NON STANDARD DEEP DRAWN CUPS [J] . B. V. S. Rao, Chandra Mohan Reddy, G. Krishna Mohan Rao, MTT: Manufacturing Technology Today . 2015,第7期

机译：非轴对称和非标准深抽口的空白尺寸的确定
3. Mathematical modelling of the process of mechano-thermomoulding of hollow articles out of flat polymer blank [J] . Ermakov D. B., Berdyshev B. V., Skuratov V. K. Химическое и нефтегазовое машиностроение . 1998,第5期

机译：空心物品中的机械 - 恒温过程的数学建模，扁平聚合物空白
4. COMPUTATIONAL EVALUATION OF MULTIPLE BLANK HOLDERTO CONTROLWELD LINE MOVEMENT AND FORMABILITY IN TAILOR WELDED DEEP DRAWN PARTS [C] . Patra Debashis, T Jagadeesha, S Pradeep, FISITA World Automotive Congress . 2018

机译：多重空隙控制砌线路运动和裁缝焊接深拉部件的计算评估
5. Analysis of hydro-pneumatic interconnected suspension struts in the roll plane vehicle model. [D] . Wu, Liwen. 2003

机译：侧倾飞行器模型中的油气连接悬架支撑杆分析。
6. Closed-Form Solution and Experimental Verification for the Axisymmetric Deformation Problem of Blistering Circular Thin Polymer Films under Uniformly Distributed Gas Pressure [O] . Zhi-Xin Yang, Xiao-Ting He, Si-Rui Wen 2020

机译：均匀分布气体压力下起泡的圆形聚合物薄膜轴对称变形问题的闭式解和实验验证
7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。
8. Multiprocessing Performance Models for Parallel Computation: Part III. Common Memory Systems: Preliminaries and a Basic Performance Model [R] . Aldabass, D. 1980

机译：并行计算的多处理性能模型：第三部分。通用存储系统：预备和基本性能模型

COMPUTATIONAL MODEL OF THE PNEUMATIC FORMING OF AXISYMMETRIC POLYMERIC ARTICLES FROM PLANE PRELIMINARILY DRAWN BLANKS

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