Topon Visarrea, Blanca
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Preferred name
Topon Visarrea, Blanca
Main Affiliation
Quito
Email
blancatopon@uti.edu.ec
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Scopus Author ID
57212061389

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Design of an Automatic System for the Heat Shrink Blow Molding Process as a Measure to Reduce Ergonomic Risks

2023 , Topon Visarrea, Blanca , Shuguli R. , Ron Valenzuela, Pablo , Castillo J.

In many countries, manual lifting of loads, forced postures and repetitive movements are a source of musculoskeletal injuries in the operators of various machines. On a regular basis, repetitive manual operations, when performed continuously, for a long time and without due precaution, cause physical problems in the operators, affecting the production process. In this work, we present the ergonomic intervention in the manual workstation called heat shrink blowing. For this purpose, we included the analysis of the risk level of the workstation, dimensioning of the vertical linear system, the requirements and a comparison of the times and units produced with the manual method. The workstation was analyzed with the JSI method, and the sizing of the linear system based on the weight of the 3 kg heat gun. The result of this design allows to decrease the risk level of the workstation from JSI=13.5 to 1, due to the replacement of the operator by the system, thus protecting his safety, as well as the operation time varies from 2.8 to 3.1 seconds and the quantity of units produced varies between 9412 to 9600 units. These results are possible because this proposal has been received as an investment to optimize production, as well as a strategy to improve the working conditions and health of its employees. © 2023 IEEE.

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Design of a Portable Interface for Vibrotactile Feedback Applications

2022 , Topon Visarrea, Blanca , Iza C. , Arteaga G. , Remache B.

In this project we developed a portable haptic interface for vibro-tactile feedback applications. Currently, commercial systems similar to the proposed interface have high costs with applications in specific areas, and there is no variety of these devices in Ecuador. For this reason, we propose to develop a portable vibrotactile feedback system that will allow the user to perceive movement. The illusions that were used to validate the interface are read through a micro_SD card connected to a controller, and the algorithm used transmits information through a pair of coil type actuators, generating the tactile illusion. Finally, an experiment was conducted to demonstrate its functionality, which resulted in the Funneling illusion being the one that is best perceived in the device, in addition to the fact that the participants reported perceiving a directionality in each illusion. It is expected that this system will be a support tool in urban mobility applications, due to its advantages in terms of portability, reduced weight, low cost compared to other commercial options, reproducible using the drawings and specifications of the system. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Automotive Crankcase Design Using Biodegradable Materials

2022 , Cruz J. , Topon Visarrea, Blanca , Caceres L.

The automotive industry is innovating new materials to replace environmentally harmful products with new technologies. An alternative is the use of polymeric compounds derived from biological sources from natural fibers, which generate a low carbon footprint, limiting environmental pollution and waste management problems. The components forming part of a vehicle must meet strict requirements, and the appropriate selection of materials that withstand extreme conditions is therefore necessary. An important element within a vehicle is the crankcase of a motor, which is located at the bottom and aims to provide protection and rigidity to the engine, in addition to housing the oil and the mechanical components thereof. That is why this research proposes the design of an automotive crankcase based on biodegradable materials made of polyester and cabuya fiber. In order to verify the functionalities, a simulation was carried out in SolidWorks, identifying that it complies with similar characteristics to those of a commercial crankcase in terms of efforts and workloads. The engineered crankcase weighs 3.26 kg, is low-corrosion, has 45.42 psi of maximum effort and a strain of 2,024 e-3 in., plus 44% less cost than a commercial crankcase. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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