Design and evaluation of a Haptic simulator for vocational skill Training and Assessment

Akshay, Nagarajan; Deepu, Sasi; Rahul, E. S.; Ranjith, R.; Jose, James; Unnikrishnan, R.; Bhavani, Rao R.

doi:10.1109/iecon.2013.6700139

Cited by 25 publications

(7 citation statements)

References 9 publications

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“…After the fabrication of the steel base plate (1) and the rotary steel plate (2), the 40mm∅ steel bushing (3) that was welded on the rotary steel plate (2) was inserted into the 32mm∅ high carbon steel pin (4) with 100mm∅ x 6mm thick plain washer (15) place between the steel base plate (1) and the rotary steel plate (2), and then the G.I. pipe (7) was then attached at the end of the lever handle (6) was pinned with 6mm∅ bolt with nut and plain washer (13), the rebar adjustable guide (8) was bolted with 12mm∅ bolt with nut and washer (10) into the rebar guide plate (9) to pin the rotary steel plate (2), and the adjustable measuring guide ( 14) was put into the measuring hole (12).…”

Section: Design and Fabrication Of The Portable Manual Rebar Bendermentioning

confidence: 99%

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An Experimental Study of Improvised Portable Manual Rebar Bender

Confesor¹

2021

IJST

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Objective: To design, fabricate and evaluate the new features of a portable manual rebar bender, a Hand Tool that is used for bending rebar and other malleable materials. Methods: The researcher improves on the previously available portable manual rebar bender. Experts assessed the acceptability of this bender in terms of design and portability. Furthermore, as previously stated, the study significantly improves the usefulness of the inexpensively produced bending machine for reinforcing concrete with negligible human force. Findings: The device created has a valuable impact on the construction industry's human force due to its affordability and marketability. Also, the present tools guaranteed strength, durability, and lightness in weight. Furthermore, the portable manual rebar is made of different elements such as a center axle, stationary backup roller, and sleeve. The results after ten trials showed that the portable manual rebar bender could finish 9 mm, 20 mm, and 12 mm stirrup at an average of 24.3 seconds, 26.3 seconds, and 27.7 seconds, respectively. Additional results from seven to ten trials showed the bending time for 24 seconds stirrup for 9mm, 26 seconds stirrups for 10 mm, and 28 seconds stirrup for 12 mm. Furthermore, after a series of ten trials, the instrument achieved an accurate angle bent of 90 degrees. The M= 4.77 and 4.82 are very acceptable in terms of design and portability tools based on the evaluators' rating. Novelty: The design is novel in terms of cost, portability, and efficiency. The device can be a great help in the structures and buildings. Furthermore, the construction industry will use the portable manual rebar bender to build houses and other local infrastructure to test its effectiveness. Then, the researcher is encouraged to engage in another research to try the innovation.

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Section: Design and Fabrication Of The Portable Manual Rebar Bendermentioning

confidence: 99%

“…When exposed to salts, chemicals, or moisture, it can easily be destroyed (11) . Thus, training for a novice is essential to make them experts in the field (12) and save money, time, and materials (13) . Also, even automated bar bending that gives productivity can result in inaccuracies in quantity estimate (14) .…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Improvised Portable Manual Rebar Bender

Confesor¹

2021

IJST

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“…Having demonstrated that physical coupling between two subjects may be advantageous in joint tasks, the next step for better understanding how to improve the symbiosis of a human-robot dyad is to investigate how two partners mutually exchange information to exploit the coupling in order to facilitate the transfer of skilled know-how from an expert performer to a naïve user, as in vocational training (Akshay et al, 2013 ). For this purpose Avila Mireles et al ( 2017 ) adopted a reversed, novel perspective to the standard one that focused on the ability of physically coupled subjects to adapt to cooperative contexts that require negotiating a common plan.…”

Section: Physical Interaction Paradigms For Skill Transfermentioning

confidence: 99%

Social Cognition for Human-Robot Symbiosis—Challenges and Building Blocks

et al. 2018

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The next generation of robot companions or robot working partners will need to satisfy social requirements somehow similar to the famous laws of robotics envisaged by Isaac Asimov time ago (Asimov, 1942). The necessary technology has almost reached the required level, including sensors and actuators, but the cognitive organization is still in its infancy and is only partially supported by the current understanding of brain cognitive processes. The brain of symbiotic robots will certainly not be a “positronic” replica of the human brain: probably, the greatest part of it will be a set of interacting computational processes running in the cloud. In this article, we review the challenges that must be met in the design of a set of interacting computational processes as building blocks of a cognitive architecture that may give symbiotic capabilities to collaborative robots of the next decades: (1) an animated body-schema; (2) an imitation machinery; (3) a motor intentions machinery; (4) a set of physical interaction mechanisms; and (5) a shared memory system for incremental symbiotic development. We would like to stress that our approach is totally un-hierarchical: the five building blocks of the shared cognitive architecture are fully bi-directionally connected. For example, imitation and intentional processes require the “services” of the animated body schema which, on the other hand, can run its simulations if appropriately prompted by imitation and/or intention, with or without physical interaction. Successful experiences can leave a trace in the shared memory system and chunks of memory fragment may compete to participate to novel cooperative actions. And so on and so forth. At the heart of the system is lifelong training and learning but, different from the conventional learning paradigms in neural networks, where learning is somehow passively imposed by an external agent, in symbiotic robots there is an element of free choice of what is worth learning, driven by the interaction between the robot and the human partner. The proposed set of building blocks is certainly a rough approximation of what is needed by symbiotic robots but we believe it is a useful starting point for building a computational framework.

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“…As the approaches to solve the problem, there are various researches. For example, a teaching material that captures the sawing movement of beginner and expert in 3D virtual space 'Second Life' [4], a movement analyze system of two students for objective comparison using KINECT sensor [5], research about movement analyze method of finger motion for skill improvement [6], and a force analyze system in pipe-cutting simulation for comparison and evaluation of user's force [7]. However, such researches do not focus on workpieces.…”

Section: Related Research and Technical Problemmentioning

confidence: 99%

Development and Evaluation of a Workpiece Evaluation Support Mechanism for Students

Fukutani

Itagaki

Takahashi

et al. 2018

Information Engineering Express

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Japanese junior high schools teach technology education by manufacturing activities performed by the students. For instance, an activity could require the application of a specific skill like sawing. It is difficult for the students to evaluate skills objectively by themselves in the manufacturing activities. This paper proposes a mechanism for the students to facilitate the evaluation of their skills within the limited classroom hours. The mechanism evaluates angle and surface roughness of a workpiece by using the sensors of a mobile device. We implemented this mechanism and titled it 'Workpiece Evaluation Support Mechanism for Students'. Additionally, the students confirmed that the mechanism supported the realization of their task in the actual class.

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Design and evaluation of a Haptic simulator for vocational skill Training and Assessment

Cited by 25 publications

References 9 publications

An Experimental Study of Improvised Portable Manual Rebar Bender

An Experimental Study of Improvised Portable Manual Rebar Bender

Social Cognition for Human-Robot Symbiosis—Challenges and Building Blocks

Development and Evaluation of a Workpiece Evaluation Support Mechanism for Students

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