Examinando por Materia "Environmental uncertainty"

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    Detection of structural damage and estimation of reliability using a multidimensional monitoring approach
    (SAGE PUBLICATIONS LTD, 2018-04-01) Ortiz J.O.; Betancur G.R.; Gómez J.; Castañeda L.F.; Zajsc G.; Gutiérrez-Carvajal R.E.; Universidad EAFIT. Departamento de Ingeniería Mecánica; Estudios en Mantenimiento (GEMI)
    Many structural elements are exposed to load conditions that are difficult to model during the design phase, such as environmental uncertainties, random impacts, and overloading, amongst others, thus increasing unprogrammed maintenance and reducing confidence in the reliability of the structure in question. One way to deal with this problem is to monitor the structural condition of the element. This approach requires supervising several signals coming from critical locations and then performing an accurate condition estimation of the element in question based on the data collected. This study implements a method to diagnose and evaluate the reliability of the bolster beam structure of the railway vehicle during a fatigue test. The results show that multidimensional monitoring not only diagnoses the element accurately but also results in correct estimation of reliability. © 2017, © IMechE 2017.
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    Patrones de sostenibilidad : gestión de capacidades para apalancar el crecimiento de pymes en entornos VUCA
    (Universidad EAFIT, 2024) López Arias, Christian; Guarín Grisales, Álvaro de Jesús
    This research explores factors that generate unsustainability in Colombian small and medium-sized enterprises (SMEs) in VUCA (Volatility, Uncertainty, Complexity and Ambiguity) environments, through a mixed approach that combines quantitative and qualitative analyzes from surveys of entrepreneurs and corporate leaders with experience in innovation, business, strategy and organizational competitiveness. The results reveal that factors such as lack of access to financing, intensified competition, changes in the market, macroeconomic fluctuations and technological obsolescence significantly affect and put business sustainability at risk, limiting the ability to adapt to changes in the business environment. Research suggests that companies must constantly monitor their environment and business model to ensure desirability, feasibility and viability, which are critical to long-term sustainability. Strategic ambidexterity becomes a fundamental activity to generate continuity opportunities for businesses, highlighting the importance of using mechanisms that diagnose and enable the efficient exploitation of existing business models from the understanding of sustainable patterns such as desirability, feasibility and viability and the exploration of new models to face the challenges generated by highly uncertain environments that constantly threaten processes, products and businesses. Patterns such as continuous innovation and adaptability stand out, essential to maintain competitiveness in volatile, ambiguous, complex and highly uncertain environments.