| 采用数值仿真实验的“透光”镜制造原理 |
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| 引用本文： | 曹明睿,陈政强,李元跃,陈融斌,张婷婷.采用数值仿真实验的“透光”镜制造原理[J].华侨大学学报(自然科学版),2023,0(1):1-11. |
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| 作者姓名： | 曹明睿 陈政强 李元跃 陈融斌 张婷婷 |
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| 作者单位： | 1. 华侨大学 制造工程研究院, 福建 厦门 361021;2. 华侨大学 机电及自动化学院, 福建 厦门 361021;3. 南方科技大学 机械与能源工程系, 广东 深圳 518055 |
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| 基金项目： | 国家自然科学基金资助项目(51905182)； |
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| 摘 要： | 对“透光”镜造型进行检测分析，探明“透光”现象的关键原因为镜面整体上凸，镜面存在微观结构.对镜体材质、铸造残余应力、研磨量和研磨方式等关键因素进行分析，逐步探明制镜工艺特点.以ABAQUS软件为平台，通过数值仿真实验分析镜面研磨过程中残余应力引起的镜体变形效果.仿真结果表明：随着“透光”镜的镜面研磨去除量和去除曲率逐渐增大，镜面微观结构的高度差将逐渐增大，形貌特征将更加明显；在平面研磨过程中，随着镜体刚度逐渐下降，铸造残余应力克服镜体刚度使镜面产生拱起变形和应变差异；在曲面精磨过程中，随着镜面弯曲曲率的增大，镜体内部残余应力更易释放，镜面上的微观结构也更加明显，最终形成镜面“透光”现象.
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| 关 键 词： | “透光”镜 残余应力 微观结构 数值仿真 应变 |
Thermotolerance of the Selec ted Abalone Populations First Generation of Heterozygotes Cultured in the South of China |
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| CAO Mingrui,CHEN Zhengqiang,LI Yuanyue,CHEN Rongbin,ZHANG Tingting.Thermotolerance of the Selec ted Abalone Populations First Generation of Heterozygotes Cultured in the South of China[J].Journal of Huaqiao University(Natural Science),2023,0(1):1-11. |
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| Authors: | CAO Mingrui CHEN Zhengqiang LI Yuanyue CHEN Rongbin ZHANG Tingting |
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| Affiliation: | 1. Institute of Manufacturing Engineering, Huaqiao University, Xiamen 361021, China; 2. College of Mechanical Engineering and Automation, Xiamen 361021, China; 3. Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China |
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| Abstract: | Using the seedlings of Haliotis discus hannai as a control,the thermotolerance of the first generation of heterozy gous seedlings (male parents ( Haliotis sieboldii♀×Haliotis discus hannai♂) ×female parents ( Haliotis fulgens♀×Haliotis discus hannai♂) ) of the selected abalone population (SAPFGH) was studied by dynamic and static methods,and the activity expression of hepatopancreatic superoxide dismutase (SOD),catalase (CAT),acid phosphatase (ACP) and lysozyme (LZM) in response to thermal stress were investigated.The results showed that the upper initial lethal temperature 168 h UILT 50of the selected abalone population’s first generation of heterozygous seedlings cultured in the south of China was （33.36±0.03）℃,which was slightly higher than （33.13±0.02）℃ of the control experimental animals.When the i nitial water temperature was 21.0 ℃,24.0 ℃ and 27.0 ℃,the critical temperature maximum (CTM) of the seedlings reached (30.27±0.45)℃,(32.57±0.31)℃ and (33.07±0.25)℃ respectively.Under the same conditions,its value was significantly higher than that of the control experimental animals at （28.80±0.36）℃,（30.87±0.40）℃ and （31.67±0.32）℃.Under the condition of initial temperature rising slowly at 24.0 ℃,the upper thermal tolerance index (UTT) of the SAPFGH seedlings was as high as（1918.75±208.11）℃·h,which was much higher than （922.56±138.18）℃·h in the control animals.The activities of hepatopancreatic enzymes (SOD,CAT,ACP and LZM) of the SAPFGH seedlings after experiencin g high temperature stress of 26.0-32.0 ℃ for 2 hours and returning to the initial temperature environment of 24.0 ℃ can be increased from（9.02±0.45）U/mg to (21.96±2.02) U/mg,from (7.22±0.77) U/mg to (11.07±1.40) U/mg,from (63.38±5.48) U/mg to (175.12±18.30) U/mg,and from (42.45±4.87) U/mg to (112.71±7.47) U/mg,respectively,compared with the control experimental animals,the hepatopancreatic enzymes (SOD,CAT,ACP and LZM) have better response effect to thermal stress and high temperature adaptability |
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| Keywords: | abalone cultured in the south of China abalone selected population critical temperature maximum upper initial lethal temperature upper thermal tolerance index hepatopancreatic enzymes |
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