Real-time finite element structural analysis in augmented reality. (September 2015)

• Record Type: Journal Article
• Authors: Huang, J.M.; Ong, S.K.; Nee, A.Y.C.
• Is Part Of: Advances in engineering software. Volume 87(2015)
• Page Start: 43
• Page End: 56
• Publication Date: 2015-09
• Subjects: Real-time finite element analysis -- Augmented reality -- Scientific visualization -- Wireless sensor network -- Enhanced data exploration -- Structural analysis; Computer-aided engineering -- Periodicals; Engineering -- Computer programs -- Periodicals; Engineering -- Software -- Periodicals; Periodicals; 620.0028553
• DOI: 10.1016/j.advengsoft.2015.04.014
• Languages: English
• ISSNs: 0965-9978

Abstract

Highlights: An integrated platform for performing real-time FEA simulations in AR. AR visualization of FEA solutions and a tangible interface for enhanced data exploration. AR-assisted configuration of wireless sensor network to acquire loads onsite for FEA. Abstract: Conventional finite element analysis (FEA) is usually carried out in offsite and virtual environments, i.e., computer-generated graphics, which does not promote a user's perception and interaction, and limits its applications. With the purpose of enhancing structural analysis with augmented reality (AR) technologies, the paper presents a system which integrates sensor measurement and real-time FEA simulation into an AR-based environment. By incorporating scientific visualization technologies, this system superimposes FEA results directly on real-world objects, and provides intuitive interfaces for enhanced data exploration. A wireless sensor network has been integrated into the system to acquire spatially distributed loads, and a method to register the sensors onsite has been developed. Real-time FEA methods are employed to generate fast solutions in response to load variations. As a case study, this system is applied to monitor the stresses of a step ladder under actual loading conditions. The relationships among accuracy, mesh resolution and frame rate are investigated.