| 高温环境对振动测试信号传输参数的影响 |
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| 引用本文： | 门秀花,李舜酩,胡瑞,鲍庆勇.高温环境对振动测试信号传输参数的影响[J].航空动力学报,2009,24(8):1731-1735. |
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| 作者姓名： | 门秀花 李舜酩 胡瑞 鲍庆勇 |
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| 作者单位： | 南京航空航天大学能源与动力学院;电子工程学院; |
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| 基金项目： | 国家自然科学基金(50675099);;江苏省自然科学基金(BK2007197) |
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| 摘 要： | 为了研究发动机试车运行时高温环境对振动特性测试信号传输参数的影响,利用电磁场-热耦合理论,探讨了温度场对电磁场各场量的影响.结合实际测试传输网络,提出了一种能有效提取多导体传输参数的传输电路法.该方法用经典的能量法进行了验证,取得了很好的一致性.电阻和电感参数均随环境温度的升高而增加,且电阻受温度影响的变化幅度尤为明显.多输出响应时多导体的邻近耦合响应随温度升高而加剧,互电参数受温度和导体间距的影响明显.
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| 关 键 词： | 发动机 振动特性测试 电参数 高温 多导体传输 传输电路 |
| 收稿时间： | 7/20/2008 5:33:24 PM |
| 修稿时间： | 5/7/2009 8:59:16 AM |
Effects on transmission parameters of vibration measurement for high temperature environment |
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| MEN Xiu-hu,LI Shun-ming,HU Rui and BAO Qing-yong.Effects on transmission parameters of vibration measurement for high temperature environment[J].Journal of Aerospace Power,2009,24(8):1731-1735. |
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| Authors: | MEN Xiu-hu LI Shun-ming HU Rui and BAO Qing-yong |
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| Institution: | 1.College of Energy and Power Engineering;Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China;2.Electronic Engineering Institute;Hefei 230037;China |
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| Abstract: | Temperature rise leads to signal transmission change of vibration measurement during test run of engines.Based on electromagnetic-thermal theory,the effects of thermal field on electromagnetic field variables were studied.A new approach was proposed to extract multi-conductor transmission parameters by combining test transmission network.The parameters values obtained by proposed approach were in good agreement with classical energy method.The results show that resistance and inductance of transmission cond... |
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| Keywords: | engine vibration measurement electrical parameters high temperature multi-conductor transmission transmission circuit |
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