Analysis of the Impact of Drum Installation Methods in Helical Propulsion Mechanisms on Travel Performance
[Purposes]Due to the relatively small ground pressure of conventional locomotion mecha-nisms,situations such as sinking are prone to occur on beaches,resulting in partial or complete loss of mobility.Therefore,the selection of a helical propulsion mechanism for beach locomotion is imperative.To enhance its efficiency in beach locomotion,it is essential to investigate the installation methods of the lower roller.[Methods]The locomotion scenarios of the helical propulsion mechanism on the beach were simulated and analyzed using software to obtain parameters such as actual traveling speed and traction force.The effectiveness of locomotion was evaluated through calculations.[Findings]The research indi-cates that the installation method with the left-handed roller placed on the left and the right-handed roller placed on the right yields better locomotion performance.Furthermore,it was observed that the di-rection of sand displacement along the roller rotation determines the direction of accumulation of sand when the blades rotate,which is related to the roller's steering rather than the rotation direction of the blades.[Conclusions]The findings of this study can serve as a reference for the installation of rollers in helical propulsion mechanisms.
helical propulsionhelical drum installationdiscrete element simulationmulti-body dynam-ics simulationtravel performance
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