Experimental Study On Motion Characteristics Of The Capsule Based On High Speed Imaging Technology

Thesis is supported by the National Natural Science Fund Project 51109155 and 51179116, Taiyuan University of technology research and Shanxi Province Natural Science Fund Project 2015011067 students innovation project (S2014108). Through theoretical analysis and model test of in under the influence of many factors, the pipe vehicle acceleration phase and stable phase of the operation state of motion changes were studied. The research results are as follows:First, using high speed camera of tube vehicle acceleration stage of shooting, the pipeline to start the car after accelerated to stages were steady speed change, the pipeline from the test tube segment starting point of accelerated motion, after reaching a certain speed, the speed is no longer occur great changes into the stable operation stage. The acceleration is not constant during the whole process, and it decreases with the increase of the pipe vehicle speed.Secondly, of the piped carriage accelerated movement stage and stable operation stage by force condition is analyzed and established the stable operation of the pipeline car of mathematical model and combined with the mathematical model and the experimental data were analyzed.Then, on flow condition for Q=30,40,50,60m3/h; for a commander L=100150mm; car size is D=60,70,80mm, conveying load occurrence and 0.3KG tube vehicle to of test analysis, draw implications for flow, commander, vehicle size, conveying the load test parameters of tube vehicle speed, stable operation stage average speed, accelerating section length:(1) The same for transporting a load case, pipe vehicle velocity increases with the increase of flow rate, the acceleration increases with the increase of flow, with the pipeline steady stage average velocity with the pipeline flow changes is basically proportional.(2) Under the same flow rate and conveying load situation, pipe vehicle speed along with the car size increases and increases, increases with the increase of the conductor decreases. The tube car acceleration process acceleration vehicle size increases, and decreases with the increase of length. At the same time, affect the rate of tube vehicle diameter on the speed of the pipe vehicle is higher than pipeline car impact on the speed of the pipe vehicle.(3) With the same models and flow conditions, the speed of the pipe vehicle decreases with the increase of the load, and the average speed of the pipeline vehicle is also decreased with the increase of the load.(4) In the pipeline vehicle flow and transmission load are certain, the diameter ratio of 0.53 of the pipeline vehicle in the stable running stage of the fastest, the diameter ratio of 0.6 of the pipeline vehicle stable operation stage of the lowest speed. Diameter ratio of 0.467 of the pipeline car to accelerate the longest distance, long diameter ratio of 0.6 of the pipeline car to accelerate the shortest distance.(5) In the pipeline vehicle models and the transmission load, the speed of the pipeline is increased with the increase of the flow in the pipeline.The research results enrich the TRM transportation technology of tube vehicle acceleration phase velocity and acceleration change research, provides certain value for hydraulic transportation technology further promotion.