Published

2017-01-01

Development of a system dynamics model based on Six Sigma methodology

Desarrollo de un modelo de dinámica de sistemas basado en la metodología Seis Sigma

Keywords:

Six Sigma, DMAIC, system dynamics, knitting (en)
Seis Sigma, DMAIC, Dinámica de Sistemas, Tejido de Punto (es)

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Authors

  • José Jovani Cardiel Ortega Universidad de Guanajuato, División de Ingenierías, Campus Irapuato-Salamanca, Departamento de Estudios Multidisciplinarios, Sede Yuriria.
  • Roberto Baeza Serrato Universidad de Guanajuato, División de Ingenierías, Campus Irapuato-Salamanca, Departamento de Estudios Multidisciplinarios, Sede Yuriria.
  • Rocío Alfonsina Lizárraga Morales Universidad de Guanajuato, División de Ingenierías, Campus Irapuato-Salamanca, Departamento de Estudios Multidisciplinarios, Sede Yuriria.
A dynamic model to analyze the complexity associated with the manufacturing systems and to improve the performance of the process through the Six Sigma philosophy is proposed. The research focuses on the implementation of the system dynamics tool to comply with each of the phases of the DMAIC methodology. In the first phase, define, the problem is articulated, collecting data, selecting the variables, and representing them in a mental map that helps build the dynamic hypothesis. In the second phase, measure, model is formulated, equations are developed, and Forrester diagram is developed to carry out the simulation. In the third phase, analyze, the simulation results are studied. For the fourth phase, improving, the model is validated through a sensitivity analysis. Finally, in control phase, operation policies are proposed. This paper presents the development of a dynamic model of the system of knitted textile production knitted developed; the implementation was done in a textile company in southern Guanajuato. The results show an improvement in the process performance by increasing the level of sigma allowing the validation of the proposed approach.
Se propone un modelo dinámico para analizar la complejidad asociada a los sistemas de producción y mejorar el desempeño de los procesos a través de la filosofía Seis Sigma. La investigación se enfoca en la implementación de la herramienta de dinámica de sistemas para dar cumplimiento a cada una de las fases de la metodología DMAIC. En la primera fase, definir, se articula el problema, recolectando los datos, seleccionando las variables y representándolas en un mapa mental que ayuda a construir la hipótesis dinámica. En la segunda fase, medir, se formula el modelo, se desarrollan las ecuaciones y se elabora el diagrama de Forrester para llevar a cabo la simulación. En la tercer fase, analizar, se estudian los resultados obtenidos de la simulación. Para la cuarta fase, mejorar, se valida el modelo a través de un análisis de sensibilidad. Finalmente en la fase de control, se proponen políticas de operación. En este trabajo se desarrolló un modelo dinámico del sistema de producción textil de tejido de punto; la implementación se realizó en una empresa textil del sur de Guanajuato. Los resultados muestran un aumento en el desempeño del proceso incrementando el nivel de sigma, lo que valida el enfoque propuesto.

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