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Service life prediction of fly ash concrete using an artificial neural network
《结构与土木工程前沿（英文）》 2021年 第15卷 第3期 页码 793-805 doi: 10.1007/s11709-021-0717-9
关键词： concrete fly ash carbonation neural networks experimental validation service life
Zhihua ZHANG,Huichen YU,Chengli DONG
《机械工程前沿（英文）》 2015年 第10卷 第4期 页码 418-423 doi: 10.1007/s11465-015-0362-x
Low cycle fatigue tests were conducted on the single crystal nickel-based superalloy, DD6, with different crystallographic orientations (i.e., [001], [011], and [111]) and strain dwell types (i.e., tensile, compressive, and balanced types) at a certain high temperature. Given the material anisotropy and mean stress, both orientation factor and stress range were introduced to the Smith, Watson, and Topper (SWT) stress model to predict the fatigue life. Experimental results indicated that the fatigue properties of DD6 depend on both crystallographic orientation and loading types. The fatigue life of the tensile, compressive, and balanced strain dwell tests are shorter than those of continuous cycling tests without strain dwell because of the important creep effect. The predicted results of the proposed modified SWT stress method agree well with the experimental data.
关键词： life prediction single crystal superalloy low cycle fatigue (LCF) crystallographic orientation strain dwell
WANG Hongyan, RUI Qiang, HE Xiaojun
《机械工程前沿（英文）》 2007年 第2卷 第1期 页码 68-71 doi: 10.1007/s11465-007-0011-0
关键词： dynamic simulation simulation software allusion influential material
An adaptive data-driven method for accurate prediction of remaining useful life of rolling bearings
Yanfeng PENG, Junsheng CHENG, Yanfei LIU, Xuejun LI, Zhihua PENG
《机械工程前沿（英文）》 2018年 第13卷 第2期 页码 301-310 doi: 10.1007/s11465-017-0449-7
A novel data-driven method based on Gaussian mixture model (GMM) and distance evaluation technique (DET) is proposed to predict the remaining useful life (RUL) of rolling bearings. The data sets are clustered by GMM to divide all data sets into several health states adaptively and reasonably. The number of clusters is determined by the minimum description length principle. Thus, either the health state of the data sets or the number of the states is obtained automatically. Meanwhile, the abnormal data sets can be recognized during the clustering process and removed from the training data sets. After obtaining the health states, appropriate features are selected by DET for increasing the classification and prediction accuracy. In the prediction process, each vibration signal is decomposed into several components by empirical mode decomposition. Some common statistical parameters of the components are calculated first and then the features are clustered using GMM to divide the data sets into several health states and remove the abnormal data sets. Thereafter, appropriate statistical parameters of the generated components are selected using DET. Finally, least squares support vector machine is utilized to predict the RUL of rolling bearings. Experimental results indicate that the proposed method reliably predicts the RUL of rolling bearings.
关键词： Gaussian mixture model distance evaluation technique health state remaining useful life rolling bearing
《能源前沿（英文）》 doi: 10.1007/s11708-023-0906-4
关键词： lithium-ion batteries RUL prediction double exponential model neural network Gaussian process regression (GPR)
魏保立,郭成超,崔璨
《中国工程科学》 2017年 第19卷 第6期 页码 80-85 doi: 10.15302/J-SSCAE-2017.06.012
笔者分别从沥青路面和水泥混凝土路面两个方面分析了路面疲劳寿命预测的相关方法。重点对疲劳寿命预测的频域分析方法进行了较为详细的分析，结合车辆–道路耦合振动系统模型，对路面不平整引起的车辆与道路之间的随机振动进行了分析，指出车辆–道路耦合振动的随机功率谱密度是进行路面疲劳寿命预测的一种手段和方法，并提出了相应的预测步骤，旨在为长寿命路面的设计和性能评价提供参考。
Contact fatigue life prediction of a bevel gear under spectrum loading
Pan JIA, Huaiju LIU, Caichao ZHU, Wei WU, Guocheng LU
《机械工程前沿（英文）》 2020年 第15卷 第1期 页码 123-132 doi: 10.1007/s11465-019-0556-8
关键词： bevel gear rolling contact fatigue (RCF) multiaxial fatigue criterion load spectrum damage accumulation rule
Tahir MAHMOOD, Sangarapillai KANAPATHIPILLAI, Mahiuddin CHOWDHURY
《机械工程前沿（英文）》 2013年 第8卷 第2期 页码 181-186 doi: 10.1007/s11465-013-0257-7
This paper demonstrates the application of a new multiaxial creep damage model developed by authors using stress traixiality to predict the failure time of a component made of 0.5%Cr-0.5%Mo-0.25%V low alloy steel. The model employs strain energy density and assumes that the uniaxial strain energy density of a component can be easily calculated and can be converted to multi-axial strain energy density by multiplying it to a function of stress trixiality which is a ratio of mean stress to equivalent stress. For comparison, an elastic-creep and elastic-plastic-creep finite element analysis (FEA) is performed to get multi-axial strain energy density of the component which is compared with the calculated strain energy density for both cases. The verification and application of the model are demonstrated by applying it to thin tube for which the experimental data are available. The predicted failure times by the model are compared with the experimental results. The results show that the proposed model is capable of predicting failure times of the component made of the above-mentioned material with an accuracy of 4.0%.
关键词： elastic-creep elastic-plastic-creep stress triaxiality life prediction pressure vessels finite element analysis (FEA)
Evaluation method of multiaxial low cycle fatigue life for cubic single crystal material
CHEN Jiping, DING Zhiping
《机械工程前沿（英文）》 2007年 第2卷 第3期 页码 278-282 doi: 10.1007/s11465-007-0048-0
关键词： orthotropic regression analysis crystal material multiaxial prediction
戴树和
《中国工程科学》 1999年 第1卷 第3期 页码 63-68
文章综述了笔者及所在科研组近年来在化工静设备，如热交换器、塔器、反应器、工业炉、储槽、储罐（球罐）、压力容器和管道等的材料损伤和寿命预测技术领域的研究进展。由于各种设备结构不同，工况条件各异，导致材料损伤的机理也不相同。文章从它们的共性问题和方法论高度进行了研究。内容包括：①按照方法论要求，提出了处理工程参数不确定性问题的途径；②用定量金相分析方法揭示金属材料服役后微观组织变化、确定其损伤程度并预测寿命。理论成果的应用取得了工程实际的成效，并获重要社会效益和经济效益。
Yueping BAO, Qiuying HUANG, Wenlong WANG, Jiangjie XU, Fan JIANG, Chenghong FENG
《环境科学与工程前沿（英文）》 2011年 第5卷 第4期 页码 505-511 doi: 10.1007/s11783-011-0318-2
关键词： photolysis polychlorinated biphenyls (PCBs) quantitative structure-property relationships (QSPRs) quantum chemical descriptors
时彧,肖友刚,雷先明
《中国工程科学》 2006年 第8卷 第7期 页码 54-57
建立了非连续接触下筒体-滚圈接触压力的计算模型，得出了滚圈弯矩及弯曲应力计算公式。应用名义应力法和局部应力应变法，建立了滚圈疲劳寿命预测模型。通过实例分析，得出了如下结论：通过调窑，将滚圈的最大支承载荷控制在2500kN以内，能显著提高滚圈的疲劳寿命；在传统设计中，将滚圈支承角定为30°不合理；存在一个最佳滚圈支承角，此时滚圈疲劳寿命最大。
Jorge Alberto Rodriguez DURAN,Ronney Mancebo BOLOY,Rafael Raider LEONI
《机械工程前沿（英文）》 2015年 第10卷 第3期 页码 255-262 doi: 10.1007/s11465-015-0342-1
The well-known fatigue crack growth (FCG) curves are two-parameter dependents. The range of the stress intensity factor ?K and the load ratio R are the parameters normally used for describing these curves. For engineering purposes, the mathematical representation of these curves should be integrated between the initial and final crack sizes in order to obtain the safety factors for stresses and life. First of all, it is necessary to reduce the dependence of the FCG curves to only one parameter. ?K is almost always selected and, in these conditions, considered as the crack driving force. Using experimental data from literature, the present paper shows how to perform multiple regression analyses using the traditional Walker approach and the more recent unified approach. The correlations so obtained are graphically analyzed in three dimensions. Numerical examples of crack growth analysis for cracks growing under nominal stresses of constant amplitude in smooth and notched geometries are performed, assuming an identical material component as that of the available experimental data. The resulting curves of crack size versus number of cycles (a vs. N) are then compared. The two models give approximately the same (a vs. N) curves in both geometries. Differences between the behaviors of the (avs. N) curves in smooth and notched geometries are highlighted, and the reasons for these particular behaviors are discussed.
关键词： fatigue crack propagation modeling life prediction mean stress effects
遗传算法与分组数据处理神经网络相结合的人工智能预测盾构掘进过程中滚刀的寿命 Article
Khalid Elbaz, 沈水龙, 周安楠, 尹振宇, 吕海敏
《工程（英文）》 2021年 第7卷 第2期 页码 238-251 doi: 10.1016/j.eng.2020.02.016
滚刀的磨损是一个影响盾构隧道掘进效率和滚刀更换决策的关键问题。本研究提出了一种估算滚刀寿命（Hf）的新模型，模型将分组数据处理（GMDH）型神经网络（NN）与遗传算法（GA）整合在一起。遗传算法优化了GMDH网络结构的效率和有效性，使得每个神经元都能从上一层网络搜索最佳连接集。使用所提出的模型，可以分析盾构机性能数据库、滚刀的消耗、地质条件和操作参数等监测数据。为了验证所提出模型的性状，进行了案例研究，用数据说明了混合模型的优越性。 结果表明，使用该混合模型预测的滚刀使用寿命的准确率高。灵敏度分析表明，盾构切入速率（PR）对滚刀的使用寿命有重要影响。研究结果对盾构隧道的设计和施工都很有意义。
关键词： 滚刀寿命 盾构隧道 施工参数 分组数据处理与遗传算法
标题 作者 时间 类型 操作
LCF behavior and life prediction method of a single crystal nickel-based superalloy at high temperature
Zhihua ZHANG,Huichen YU,Chengli DONG
期刊论文
The prediction technology study of fatigue life for key parts of a tracked vehicle’s suspension system
WANG Hongyan, RUI Qiang, HE Xiaojun
期刊论文
An adaptive data-driven method for accurate prediction of remaining useful life of rolling bearings
Yanfeng PENG, Junsheng CHENG, Yanfei LIU, Xuejun LI, Zhihua PENG
期刊论文
Two-phase early prediction method for remaining useful life of lithium-ion batteries based on a neural
期刊论文
Contact fatigue life prediction of a bevel gear under spectrum loading
Pan JIA, Huaiju LIU, Caichao ZHU, Wei WU, Guocheng LU
期刊论文
A model for creep life prediction of thin tube using strain energy density as a function of stress triaxiality
Tahir MAHMOOD, Sangarapillai KANAPATHIPILLAI, Mahiuddin CHOWDHURY
期刊论文
Evaluation method of multiaxial low cycle fatigue life for cubic single crystal material
CHEN Jiping, DING Zhiping
期刊论文
Application of quantum chemical descriptors into quantitative structure-property relationship models for predictionof the photolysis half-life of PCBs in water
Yueping BAO, Qiuying HUANG, Wenlong WANG, Jiangjie XU, Fan JIANG, Chenghong FENG
期刊论文
Some remarks on the engineering application of the fatigue crack growth approach under nonzero mean loads
Jorge Alberto Rodriguez DURAN,Ronney Mancebo BOLOY,Rafael Raider LEONI
期刊论文
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