A three levels orthogonal table-L9（34） was used,namely,impact angle,rotating speed,erodent size,and surface configuration were considered.The three bionic surface configurations are pit,groove,and ring.The experimen...A three levels orthogonal table-L9（34） was used,namely,impact angle,rotating speed,erodent size,and surface configuration were considered.The three bionic surface configurations are pit,groove,and ring.The experimental results indicate the experiment factors affecting erosive rate are,in their sequence of contribution,erodent size,impact angle,configuration,and rotating speed;the erosive rate increased with increase in rotating speed,erodent size;the erosion resistance of the sample with ring structure is higher than that of the other two samples.Based on this result,regression orthogonal experiment was carried out to select the optimal erosion resistance condition with respect to the ring bionic surface configuration.Regression equations between erosive rate and experimental factors of ring surface configurations were obtained.展开更多
基金Funded by the National Natural Science Foundation of China (No. 50635030)the Scientific and Technological Development Project of Jilin Province(No. 20090340)+2 种基金the Doctoral Program Foundation of Institutions of Higher Education of China(No.20100061110023)the Projects of Cooperation and Innovation to National Potential Oil and Gas for Production and Research,the Public Benefit Research Sector to Ministry and Resources(No. Sinoprobe09-01-07)the Graduate Innovation Fund of Jilin University(No.20091015)
文摘A three levels orthogonal table-L9（34） was used,namely,impact angle,rotating speed,erodent size,and surface configuration were considered.The three bionic surface configurations are pit,groove,and ring.The experimental results indicate the experiment factors affecting erosive rate are,in their sequence of contribution,erodent size,impact angle,configuration,and rotating speed;the erosive rate increased with increase in rotating speed,erodent size;the erosion resistance of the sample with ring structure is higher than that of the other two samples.Based on this result,regression orthogonal experiment was carried out to select the optimal erosion resistance condition with respect to the ring bionic surface configuration.Regression equations between erosive rate and experimental factors of ring surface configurations were obtained.
