Design of a Wrist Rehabilitation System with a Novel Mixed Structural Optimization Applying Improved Harmony Search
| Autor: | Edgar Alfredo Portilla-Flores, Eduardo Vega-Alvarado, Valentín Vázquez-Castillo, Gabriel Sepulveda-Cervantes, Maria Barbara Calva-Yanez |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
engineering hard problems
Mathematical optimization Optimization problem Computer science media_common.quotation_subject Population 020101 civil engineering 02 engineering and technology lcsh:Technology 0201 civil engineering lcsh:Chemistry Material selection 0202 electrical engineering electronic engineering information engineering General Materials Science Quality (business) education lcsh:QH301-705.5 Instrumentation Metaheuristic media_common Fluid Flow and Transfer Processes education.field_of_study lcsh:T Process Chemistry and Technology General Engineering lcsh:QC1-999 wrist rehabilitation Computer Science Applications Variable (computer science) lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 harmony search Harmony search 020201 artificial intelligence & image processing lcsh:Engineering (General). Civil engineering (General) optimization lcsh:Physics Integer (computer science) |
| Zdroj: | Applied Sciences, Vol 11, Iss 1766, p 1766 (2021) Applied Sciences Volume 11 Issue 4 |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11041766 |
| Popis: | This paper presents the development of a wrist rehabilitation system with a novel approach for structural design, based on the modeling of an optimization problem solved by a metaheuristic algorithm, Improved Harmony Search (ImHS). It is part of a project for developing low-cost rehabilitation systems expressly designed for the population of Latin American countries. A mixed optimization problem is modeled for the design, where the material type is associated with an integer variable and the dimensions of the components are continuous parameters. The novelty is that each element is calculated individually, but considering the combined effect over the structure. The optimization works simultaneously on both the material selection and the meeting of the associated constraints, to guarantee that the system will not fail because of any load, neither it will be unsafe for the patients, since the operation will always be within the limits considered in the modeling. ImHS is a variant of the Harmony Search algorithm, modified to enhance the exploration and exploitation processes. It is a simple yet powerful metaheuristic, implemented in this development with additional modifications to handle constraints and mixed variables. The proposed approach produced quality results, indicating that ImHS can be applied to solve complex engineering problems, facilitating the manufacture and control processes. |
| Databáze: | OpenAIRE |
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