Measuring Material Properties in Manufacturing and Agricultural Processes

测量制造和农业过程中的材料特性

• 批准号: 9319128
• 负责人: Stephen Bechtel
• 金额: $ 17.81万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-05-15 至 1998-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9319128&HistoricalAwards=false
• 关键词: Measuring; Material; Properties; Manufacturing; Agricultural

9319128 Bechtel A combination of theoretical and experimental research is to be carried out to determine certain properties of liquids, such as surface tension and extensional viscosity, which are relevant to very rapid changes in manufacturing and materials processing. These dynamic, process-dependent properties will be extracted from an inverse method built on a theoretical model which predicts the shape of a free liquid jet as a function of liquid properties. This predictive direct model has been developed by the investigators and is to be extended into the non-Newtonian regime and inverted. Liquid properties are normally determined rheologically under equilibrium conditions, which often are not relevant to a rapidly changing process environment. The present method overcomes this limitation. ***

小行星9319128 将进行理论和实验研究相结合，以确定液体的某些性质，如表面张力和拉伸粘度，这些性质与制造和材料加工中的快速变化有关。 这些动态的，依赖于过程的属性将被提取从建立在理论模型上的逆方法，该理论模型预测作为液体属性的函数的自由液体射流的形状。这种预测的直接模型已经开发的研究人员，并被扩展到非牛顿政权和倒置。 液体性质通常在平衡条件下通过流变学确定，这通常与快速变化的工艺环境无关。本方法克服了这一限制。 ***