| At present based on a large amount of sediment rivers, reservoirs dredging urgent need to improve the premise of currently, this paper focuses on the hit characteristics and aspirated characteristics of self-excited pulsed jet suction device under different conditions and submerged conditions. Based on the combination of a large number of reference literature, we carried out orthogonal test of self-excitation pulse jet suction device performance parameters under submerged conditions. Impact on device hit characteristics and aspirated characteristics analysis of different parameters, obtain the optimal parameters matching program.Chapter I outlines an overview of the domestic and foreign water jet technology, summarizes the research current situation of self-excited pulse jet, narrative self-excited pulsed jet applications. Chapter II first details the characteristics of water jet and working mechanism of self-excited pulsed jet under submerged conditions. Secondly, it introduces the orthogonal experiment, what can study the influence of different factors and the common role among different factors of the self-excitation pulse jet device performance. Chapter III developing orthogonal pilot programs, according to program to develop the test, analyze the test data, draw the influence of different factors and the common role among different factors of the self-excitation pulse jet device performance, and analysis the impact primary and secondary order of the different structures and operating parameters of the device hit characteristics and aspirated characteristics. Obtaine test parameters which make hit characteristics and aspirated characteristics to be optimal through orthogonal test, and verify the results what the orthogonal test achieved.Results of this study providing a reliable basis for the self-excited breathing pulse jet test pilot programs to develop, and what factors priority when self-excited breathing pulse jet test. |
PDF Full Text Request