Modeling and Experimental Analysis of Suction Pressure Generated by Active Suction Chamber Based Wall Climbing Robot with a Novel Bottom Restrictor

Abstract

The large numbers of research are carried out in the field of wall climbing robots. These wall-climbing robots are utilized for variety of applications including hazardous operations. The wall-climbing robots must be capable of manoeuvring in different wall surfaces without sacrificing its mobility. For such capabilities, wall-climbing robots should be enabled with proper adhesion mechanism such as suction based absorption technology. In this paper, the modeling and experimental analysis of suction pressure generated inside the suction chamber with different suction chamber contours is analyzed. In this study, a novel bottom restrictor is included at the bottom of the designed suction chamber. The suction motor, suction chamber with different contours and bottom restrictor is modelled using 3D Solidworks software and performance analysis were done using FLU-EFD computational fluid dynamics (CFD) package. The impact on the adhesion efficiency of the climbing robot with the designed bottom restrictor is experimentally evaluated and tested on non-plastered brick walls.