Propeller-type Wall-Climbing Robots: A Review

Mahmood, S K; Bakhy, Sadeq H.; Tawfik, Mouwafak A.

doi:10.1088/1757-899x/1094/1/012106

Cited by 8 publications

(2 citation statements)

References 36 publications

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“…Various robotic locomotion mechanisms, i.e., various ways of moving along a surface, have been described in the professional and scientific literature [22,23]:…”

Section: Challenges In the Development Of The Autonomous System Rokomentioning

confidence: 99%

Development of an autonomous structural integrity assessment and prediction system

2022

JCE

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Development of innovative solutions for the maintenance of transport infrastructure facilities is needed in order to ensure a more rational, planned and lower-cost maintenance of transport infrastructure, and to ultimately minimise the risk of catastrophic consequences. A system for an autonomous inspection of structures, based on advanced measuring methods integrated on a wall-climbing robot and an unmanned aerial vehicle, is currently developed in the scope of the ASAP project. The objective of this paper is to provide an overview and draw attention to disadvantages of conventional methods for testing materials and structures in order to assess their condition. This objective was the main motivation for forming a multidisciplinary team through the ASAP project. Possibilities and challenges in the development of an autonomous structural-assessment system are also presented in the paper, with the purpose of increasing the reliability and efficiency of systemic assessment of structures.

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“…Various robotic locomotion mechanisms, i.e., various ways of moving along a surface, have been described in the professional and scientific literature [22,23]:…”

Section: Challenges In the Development Of The Autonomous System Rokomentioning

confidence: 99%

Development of an autonomous structural integrity assessment and prediction system

2022

JCE

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“…Pivoting RTUs [151] (Figure 7)-Tracks enable uninterrupted contact and continuous one-way surface coverage but increase weight and power drain, limiting survey completeness; • Negative Pressure Wall-Climbers [152,153]-Faster than track-based RTUs but require large flat contact surfaces, hence curved tunnel geometry risks UAV slip and hazardous control loss; • Fully Actuated Configurations [154,155]-Provides best all-round solution, providing unrestricted multidirectional movement even on curved surfaces, but is liable to nearsurface turbulence.…”

Section: Unmanned Aerial Vehiclesmentioning

confidence: 99%

Developments in 3D Visualisation of the Rail Tunnel Subsurface for Inspection and Monitoring

2022

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Railway Tunnel SubSurface Inspection (RTSSI) is essential for targeted structural maintenance. ‘Effective’ detection, localisation and characterisation of fully concealed features (i.e., assets, defects) is the primary challenge faced by RTSSI engineers, particularly in historic masonry tunnels. Clear conveyance and communication of gathered information to end-users poses the less frequently considered secondary challenge. The purpose of this review is to establish the current state of the art in RTSSI data acquisition and information conveyance schemes, in turn formalising exactly what constitutes an ‘effective’ RTSSI visualisation framework. From this knowledge gaps, trends in leading RTSSI research and opportunities for future development are explored. Literary analysis of over 300 resources (identified using the 360-degree search method) informs data acquisition system operation principles, common strengths and limitations, alongside leading studies and commercial tools. Similar rigor is adopted to appraise leading information conveyance schemes. This provides a comprehensive whilst critical review of present research and future development opportunities within the field. This review highlights common shortcomings shared by multiple methods for RTSSI, which are used to formulate robust criteria for a contextually ‘effective’ visualisation framework. Although no current process is deemed fully effective; a feasible hybridised framework capable of meeting all stipulated criteria is proposed based on identified future research avenues. Scope for novel analysis of helical point cloud subsurface datasets obtained by a new rotating ground penetrating radar antenna is of notable interest.

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