欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对齿轮剩余使用寿命预测这一问题进行了研究,提出了一套基于二次指数平滑和改进增量支持向量回归（Support vector machine for regression,SVR）的齿轮剩余寿命预测新方案。该方案利用主成分分析法（Principal component analysis,PCA）筛选组成融合指标集,再进行二次指数平滑处理（Double exponential smoothing,DES）作为输入,构建基于增量拉丁超立方采样（Latin hyper-cube sampling,LHD）和Direct搜索算法的改进增量SVR预测模型。与基于原始特征值的标准SVR模型相比,新模型克服了信号随机性和突变性的干扰,并获取了最新状态信息的内在演变趋势,寻优效果和预测性能得到明显改善。用齿轮全寿命周期试验数据对新模型进行验证分析,结果表明,改进增量SVR预测模型获得了更可靠、更稳定的预测结果,具有一定工程实用价值。
英文摘要：
The remaining life prediction problem of gear is studied and a new set of gear life prediction program is put forward based on double exponential smoothing（ DES） and improved incremental support vector machine for regression（ SVR）. The new program utilizes principal component analysis（ PCA） to filtrate fusion index set,and then using DES to process fusion index set as the input of improved incremental SVR. Meanwhile,the improved incremental SVR prediction model is constructed based on incremental Latin hyper- cube sampling（ LHD） and Direct search algorithm. Compared with the standard SVR prediction model based on original characteristic values,the interference of signal randomness and mutation of the new model sre overcome,furthermore,the latest evolution trend information of the gear status is obtained,the optimization effect and prediction performance is obviously improved. The validation analysis of the new model is carried out by using the full life- cycle test data,the results show that the improved incremental SVR prediction model obtained a more reliable,more stable predictions,it has certain practical value in engineering.
同期刊论文项目
同项目期刊论文
Time-Varying Meshing Stiffness Calculation and Vibration Analysis for a 16DOF Dynamic Model With Lin
Application of an improved Levenberg-Marquardt back propagation neural network to gear fault level i
Multilevel decomposition of vibration signals from motorcycles using the wavelet-Hilbert transformat
An improved simplex-based adaptive evolutionary digital filter and its application for fault detecti
A new dynamic model for vibration analysis of a ball bearing due to a localized surface defect consi
Study on the chatter vibration of a steel plate mill based on second order cyclic autocorrelation de
Transient meshing performance of gears with different modification coefficients and helical angles u
Gearbox degradation analysis using narrowband interference cancellation under non-stationary conditi
A new method of accurate broken rotor bar diagnosis based on modulation signal bispectrum analysis o
Vibration characteristic analysis of twenty-high rolling mill with local defect on roll surface base
Transmission of vibration and energy through layered and jointed plates subjected to shock excitatio
Prophase failure prediction of the mechanical transmission systems based on the biological evolution
Interference cancellation in space-frequency group codes cooperative OFDM communication with multipl
Impulse vibration transmissibility characteristics in the presence of localized surface defects in d
Dynamic Features of a Planetary Gear System With Tooth Crack Under Different Sizes and Inclination A
Investigation into the energy dissipation of a lap joint using the one-dimensional microslip frictio
期刊信息
位置：