寿命预测
2015-07-26 11:48:42 41 举报
AI智能生成
寿命预测,即通过科学方法对个体或物种的寿命进行预测和评估。这种预测通常基于大量的生物学数据,包括但不限于基因信息、生活习惯、环境因素等。通过对这些数据的分析和建模,可以预测出个体或物种可能的生存期限。然而,需要注意的是,寿命预测并非绝对准确,它只能提供一个大致的预期范围。此外,寿命预测的结果可能会受到许多不可预见因素的影响,如疾病、意外等。因此,虽然寿命预测可以为我们的生活提供一些参考,但我们仍然需要珍惜每一天,积极健康地生活。
作者其他创作
大纲/内容
发展历史
技术开创期1847
发展期189x-190x
技术完善期
发展趋势,热点,难点
现在都是单一寿命预测,距离整体寿命预测较远
研究意义
重大装备发生事故造成危害大
事故例子
维修难,过早更换零件容易造成浪费
维修难,零配件大多需要特制,准备时间长,价格贵
零件例子,火箭外壳,空间站
可靠性估计难,样本少,环境复杂且恶劣,载荷多变
研究对象
飞行器,舰船,火箭,大型工程机械,发电机组
领域
发电设备,航空航天,石油化工,汽车,铁路运输,数控加工,冶金,武器装备
汽车领域内容
汽车零部件,运货车箱的端梁,运货车厢,汽车车轮,汽车发动机,汽车齿轮
方法:时域波再现技术
张帆,靳晓雄.时域波形再现技术在汽车零部件疲劳
寿命预测中的应用[J】.汽车科技,2007(1):21-23. ZHANG Fan。fiN Xiaoxiong.The application of time waveform replication technology in automobile compocation technology in automobile component fatigue life prediction[J].A
神经网络
】苏春华,罗雷,海军,等.基于BP神经网络的汽车发动机寿命预测【J丁.军事交通学院学报,2009,II(4):
49-51,70.SU Chunhua,LU0 Lei,HAI Jtm,et a1.The predictionof vehicle’S service life with BP neural network[J]. Joumal ofAcademy ofMilitary Transportation,2009,
11(4):49·51,70.
灰度系统
】于雷.灰色系统理论在汽车齿轮寿命预测中的应用[J】. 汽车技术,2006(9):24-26.
YU Lci.Application of gray system theory in predicting li岛of automobile gear[J].Automobile Technology, 2006(9):24-26.
现有研究方法
力学方法
应力法
应变法
累积疲劳损伤理论
线性累积损伤理论
palmgren-miner
双线性累积损伤理论
grover-manson
非线性疲劳累积损伤理论
corten-dolan
marco-starky
henry
参考文献两篇
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基于断裂力学的疲劳扩展理论
损伤力学
能量法
概率统计方法
信息技术
人工智能
神经网络
相关文献
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VAssl0POuLOS A P, GEORGoPOU】LoS E F。
DIONYSOPOULOS V Artificial neural networks in
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29(1):20—29.
分类
back propagation multi-layer network
radial basis functions network RBF
对比文献
Review and application of Artificial Neural Networks models in reliability analysis of steel structures
专家系统
相关文献
ESPASA M L,GAUDES J,PRUENCA N,et a1.Expert
system to life prediction of petroleum refinery piping. High temperature[J].Afinidad,1997,54(468):98·102.
模糊系统
相关文献
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进化算法
相关文献
】BUKKAPATNAM ST S,SADANANDA IC A genetic algorithm for unified approach-based predictive
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状态监测
基于振动信号的滚动轴承监测
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signals: A neural network approach[J].IEEE ,Transactions on Indnstrial Electronics,2004,51(3):
694.700.
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