| 差压检漏系统压力与温度响应的计算分析 |
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| 引用本文： | 喻新发,闫荣鑫,孟冬辉.差压检漏系统压力与温度响应的计算分析[J].航天器环境工程,2006,23(3):175-180. |
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| 作者姓名： | 喻新发 闫荣鑫 孟冬辉 |
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| 作者单位： | 北京卫星环境工程研究所,北京,100094;北京卫星环境工程研究所,北京,100094;北京卫星环境工程研究所,北京,100094 |
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| 摘 要： | 文章建立了差压检漏系统物理和数学模型;利用Matlab数值模拟求解非对称的基准物和被测物在不同的充气时间、有效传热面积、对流换热系数和不同的表面辐射率情况下的压力和温度随时间的响应;通过试验舱的计算结果表明:平衡时间越长,基准物和被测物的温度差越小,压差越小;当基准物容积比被测物容积小时,可以通过增大被测物的有效传热面积、表面的对流换热系数和辐射率来缩短温度平衡时间,减小二者压差.
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| 关 键 词： | Matlab 数值模拟 差压检漏系统 温度和压力响应 |
| 文章编号： | 1673-1379(2006)03-0175-06 |
| 收稿时间： | 2006/3/21 0:00:00 |
| 修稿时间： | 2006年3月21日 |
Analysis of Pressure and Temperature Responses on Differential Pressure Leak Detection |
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| YU Xinf,YAN Rongxin and MENG Donghui.Analysis of Pressure and Temperature Responses on Differential Pressure Leak Detection[J].Spacecraft Environment Engineering,2006,23(3):175-180. |
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| Authors: | YU Xinf YAN Rongxin and MENG Donghui |
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| Institution: | 1.Beijing Institute of Spacecraft environment Engineering, Beijing 100094, China |
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| Abstract: | A physical and mathematical model for the differential pressure leak detection is established in the paper. The pressure and temperature responses are calculated and analyzed based on Matlab numerical simulation software for different parameters, such as charging time, heat transfer coefficient, effective heat transfer area and irradiation coefficient. The results show that the longer the balance time, the smaller the differential pressure and temperature. When the master volume is smaller than the tested volume, the differential pressure and temperature can be reduced by increasing the tested tank parameters, such as effective heat transfer area, heat transfer coefficient and irradiation coefficient. |
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| Keywords: | Matlab |
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