Analytical and Experimental Investigation of Debris Denting,Spall Formation and Propagation

碎片凹陷、剥落形成和传播的分析和实验研究

• 批准号: 9522010
• 负责人: Farshid Sadeghi
• 金额: $ 12.36万
• 依托单位: Purdue Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9522010&HistoricalAwards=false
• 关键词: Analytical; Experimental; Investigation; Debris; Denting

9522010 Sadeghi Failure of lubricated tribological contacts is in most cases caused by debris in the lubricant. This study will develop analytical and experimental techniques to calculate and measure the effects of debris on performance parameters such as pressure, temperature, film thickness, and stress distribution in the solid surfaces. The stress calculations will be used to model crack propagation in fatigue spall development leading to mechanical failure. A multi-purpose tribotester will be used to obtain experimental data to validate the model from tests with lubricants that contain various concentrations and sizes of debris. ***

9522010润滑性摩擦学接触的萨迪吉失败是在大多数情况下是由润滑剂中的碎片引起的。 这项研究将开发分析和实验技术，以计算和测量碎屑对固体表面中压力，温度，膜厚度和应力分布等性能参数的影响。 应力计算将用于模拟疲劳spall发育中的裂纹传播，从而导致机械故障。 多功能trimoterter将用于获取实验数据，以通过润滑剂的测试来验证模型，这些润滑剂含有各种浓度和碎片尺寸。 ***