Low Speed Hunting of Pneumatically Governed Compression-ignition Engine : 3rd Report, Computer Simulation of the Low Speed Hunting
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Most of the past research works on engine speed hunting have been devoted to discriminating the divergence of a small disturbance given at an equilibrium state, resulting in a hunting frequency estimation different from that of the actual system. In the present report, a numerical simulation is given on the basis of equations of elements of the engine-governor system. As a results of simulation, a self-sustained oscillation develops in the case of speed control with subventuri pressure which has a retarded hunting frequency component compared with the speed fluctuation, while hunting disappears under suction pressure control without phase lag, as predicted in the author's previous work. Calculations show good agreement with the experimental data regarding the frequency, amplitude, and hunting speed range.
- 一般社団法人日本機械学会の論文
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