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TC11钛合金焊接疲劳损伤分行演化方程建立
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作者 邬华芝 郭海丁 +1 位作者 高德平 许开旺 《焊接学报》 EI CAS CSCD 北大核心 2005年第12期93-95,107,共4页
用航空发动机压气机叶盘常用材料TC11钛合金焊接试件,做了控制应变的疲劳寿命试验,获得了最大加载应变与疲劳寿命的关系曲线。应用数据处理技术研究了疲劳断口分维数测量中电镜放大倍数及测量码尺的选择问题,改进了二次电子线扫描分维... 用航空发动机压气机叶盘常用材料TC11钛合金焊接试件,做了控制应变的疲劳寿命试验,获得了最大加载应变与疲劳寿命的关系曲线。应用数据处理技术研究了疲劳断口分维数测量中电镜放大倍数及测量码尺的选择问题,改进了二次电子线扫描分维数处理方法,并成功地应用于钛合金焊接接头断口分维数的测量,获得断口分维数与疲劳寿命关系近似正比例关系。由已建立的焊接结构疲劳损伤分形演化理论模型,建立了一定载荷下TC11钛合金焊接接头疲劳损伤分形演化方程。对航空发动机整体焊接叶盘疲劳寿命预测有重要意义。 展开更多
关键词 焊接连接 疲劳损伤试验 分形演化方程 分维数测量
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Food Additives-Ascorbic Acid Quality Assay Test Intelligent Management 被引量:1
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作者 Hairui Zhang Li Zhang +1 位作者 Helin Ye Guofu Zhang 《Journal of Chemistry and Chemical Engineering》 2018年第1期20-25,共6页
In this paper, based on the analysis and test methods of national standards (GB 14754-2010) and chemical analysis and test items carried out by chemical enterprises, a set of automatic processing of quality analysis... In this paper, based on the analysis and test methods of national standards (GB 14754-2010) and chemical analysis and test items carried out by chemical enterprises, a set of automatic processing of quality analysis test data of ascorbic acid products was developed by using access database technology and Visual Basic programming language system, and its stability was investigated. The results show that the software can manage intelligently all aspects of the quality analysis and test of ascorbic acid products, uploading timely the data and results of the analysis and inspection to the network and saving it for users, enterprises and quality management, which set up a network of information sharing platform to ensure the authenticity and reliability of measurement results, improving greatly the speed of data processing, saving valuable time, reducing production costs with good economic efficiency and social benefit. It has practical value for ascorbic acid quality analysis test data processing automatically the results of the implementation of intelligent management. 展开更多
关键词 Food additive ascorbic acid quality analysis test intelligent management software development.
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