Vehicle Operating Fault Regularity and its Application in Inspection and Maintenance

2014 ◽  
Vol 1070-1072 ◽  
pp. 2079-2082
Author(s):  
Xu An ◽  
Xiang Ming Qiao ◽  
Chang Li Zhao ◽  
Sheng Tian Liu ◽  
Hen Hai Zhang ◽  
...  
Keyword(s):  
Optimization Theory ◽  
Optimal Solution ◽  
Maintenance Cycle ◽  
Rate Functions ◽  
Sample Testing ◽  
Actual Operation ◽  
Transport Vehicle ◽  
Inspection And Maintenance ◽  
Occurrence Regularity

To reveal the fault occurrence regularity during actual operation of transport vehicle, based on reliability, maintainability and optimization theory and method, and by the the technical means such as large sample testing, mathematical modeling and multivariate data analysis, after several years of follow-up research, we found that the occurrence of vehicle failts obey Weibull distribution, and given specific failt rate functions. Accordingly, we established a corresponding optimal mathematical model of vehicle maintenance cycle, and got the optimal solution of the model. The results of special organized verify test shows that the model solution is accurate and reliable. If transport vehicles perform the optimal vehicle maintenance cycle, the lowest unit mileage cost of vehicle detection, diagnosis and maintenance would be got.

scholarly journals Occurrence regularity of CPT discharge event in negative cloud-to-ground lightning

2014 ◽  
Vol 63 (1) ◽  
pp. 019202
Author(s):  
Zhou Wei ◽  
Zhang Yang ◽  
Zhang Yi-Jun ◽  
L Wei-Tao ◽  
Zheng Dong ◽  
...  
Keyword(s):  
Cloud To Ground Lightning ◽  
Occurrence Regularity

Technology Principle and Application of Microseismic Monitoring Rockburst

2014 ◽  
Vol 1010-1012 ◽  
pp. 1487-1493
Author(s):  
Xiao Jing Zhu ◽  
Yi Shan Pan ◽  
Zhi Tang
Keyword(s):  
Monitoring Network ◽  
Development Trend ◽  
Microseismic Monitoring ◽  
Vibration Energy ◽  
Actual Situation ◽  
Rock Stress ◽  
Focal Position ◽  
Frequency Maximum ◽  
Vibration Mechanism ◽  
Occurrence Regularity

In order to monitor and forecast rockburst, and analyze the source and magnitude,a set of microseismic monitoring rockburst technology was developed,combining with the actual situation in Dongtan coal mine.The technique used SOS microseismic monitoring system to determine failure points,record rockburst moments,the size of epicenter,the epicenter pressure drop and vibration mechanism,infer coal and rock stress state and destruction,and evaluate and monitor rockburst danger degree in accordance with changes of microseismic activities,focal position and activities tendency. The optimization microseismic monitoring network was layoutted in monitoring areas.The seismic geophone picked up microseismic signals and recorded in the rockburst figure,and the rockburst occurrence regularity and development trend were studied based on statistical analysis results of microseismic datas.Then by using VB6.0,the rockburst monitoring results were compounded in the mining drawing with concentration analysis.The rockburst events were statistical processed partitionedly to obtained vibration frequency,maximum vibration energy and total shock energy.The rockburst can be monitored and predicted through the rockburst events reflected by the datas.

The occurrence regularity of psyllid inHaloxylonspp and its influencing factors

2012 ◽  
Vol 32 (8) ◽  
pp. 2311-2319
Author(s):  
李粉莲 LI Fenlian ◽  
吴雪海 WU Xuehai ◽  
王佩玲 WANG Peiling ◽  
梁虎军 LIANG Hujun ◽  
王鑫 WANG Xin ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Occurrence Regularity

scholarly journals Study on the Occurrence Regularity of Invasive Whitefly Bemisia Tabaci Population

2013 ◽  
Vol 5 (11) ◽  
pp. 1514-1520 ◽  
Author(s):  
Xu Senfu ◽  
Wang Huifu ◽  
Chen Weiqiang ◽  
Wang Enguo ◽  
Hu Yang ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Invasive Whitefly ◽  
Occurrence Regularity

Study on Regularity of early-Age Plastic Shrinkage Cracking in Cement Concrete Pavement

2011 ◽  
Vol 233-235 ◽  
pp. 2281-2288
Author(s):  
Lei Yu ◽  
Jin Xi Zhang
Keyword(s):  
Engineering Application ◽  
Early Age ◽  
Shrinkage Cracking ◽  
Sense Data ◽  
Plastic Shrinkage ◽  
Cement Concrete Pavement ◽  
Discriminant Index ◽  
Occurrence Regularity ◽  
Indoor And Outdoor ◽  
Discrimination Method

In order to study the occurrence regularity of early-age plastic shrinkage cracking, a series of indoor and outdoor experiments have been done in this paper. The synthesized discriminant index which is used to discriminate the situation that whether the early-age plastic shrinkage cracking happens or not has been put forward in this paper. It includes the index of unit volume accumulated evaporation besides the index of evaporation rate. Meanwhile, using Bayes Discriminant Method, based on the former indexes, the critical figure which is in connection with given environment conditions has been obtained and it can be used to detect whether early-age plastic shrinkage cracking happens or not by plotting the sense data which comes from the check specimen. The precision of prediction results that whether early-age plastic shrinkage cracking happens or not has been raised substantially by using this kind of discrimination method. The theory and method are useful for engineering application.

Sign in / Sign up

Export Citation Format

Share Document