Gearboxes and bearings play an important role in industries for motion torque transmission machines. Therefore, early diagnoses are sought to avoid unplanned shutdowns, catastrophic damage the machine or human losses; additionally, appropriate diagnosis contributes increase productivi ty reduce maintenance costs. This paper addresses a methodological framework of multi-faults rotating machinery through use features rankings. The classification uses K nearest neighbors random forest, based on...

The United Nations established 17 Sustainable Development Goals (SDGs), and the fulfillment of 7th, defined as “Ensure access to affordable, reliable, sustainable, modern energy for all”, requires industry transitions digital transformations, which implies that diverse stakeholders need move fast allow growth more flexible power systems. This paper contains case report addresses commercial transformation process developed at AES Colombia, through implementation a platform based on...

This paper addresses the path followed by two private higher education institutions (HEI) in Colombia towards achieving carbon neutrality. The methodology these universities to achieve a carbon-neutral certification, based on Greenhouse Gas (GHG) Protocol, is first described. process of developing GHG inventory, projected neutrality organisations while using standard ISO 14064:2006, involved series steps that were consolidated three phases: (i) definition scope, collection data and emissions...

This paper addresses a pragmatic and well-articulated qualitative methodology for the identification, prioritization, consultation of stakeholder groups higher education institution as key element organization in context digital transformation Industry 5.0. First, identification phase required technological surveillance competitive intelligence, which allowed defining organization’s stakeholders their characteristics. Then, prioritization was performed to determine that potentially will have...

This work addresses a new set of tuning rules for Sliding Mode Control (SMC) applied to second-order inverse-response plus variable dead time processes. Descriptions the dynamics inverse response systems and sliding-mode controllers are first provided. Then, we present design process SMC rules, using dimensional analysis, experimental design, optimization, model reduction techniques set-point tracking. The obtained expressions simple, which eases application proposed step-by-step systematic...

Reciprocating compressors and centrifugal pumps are rotating machines used in industry, where fault detection is crucial for avoiding unnecessary costly downtime. A novel method classification reciprocating multi-stage proposed. In the feature extraction stage, raw vibration signals processed using multi-fractal detrended fluctuation analysis (MFDFA) to extract features indicative of different types faults. Such MFDFA enable training machine learning models classifying Several classical a...

Classification of fault severity in gearboxes using Acoustic Emission (AE) signals is challenging because such represent a highly non-linear and possibly chaotic system. Due to the common assumption linearity, statistical features extracted from these systems are suboptimal for classification severity. Hence, this paper uses Poincaré plot (PP) extract useful classify type gearboxes. For development, four types were applied over different gears then tested on an experimental condition...

Energy accessibility in Non-Interconnected Zones (NIZ), together with the energy transition context, converges on exploring non-conventional renewable sources and technology to harness them. Hydrokinetics is an interesting abundant resource Colombia, present many cases near NIZ communities but unavailable information about (flow velocity) its actual power generation potential. This work presents a method assess hydrokinetic based estimation of river flow velocity from discharge, level,...

This paper addresses the development of simulation low-level control system for underwater remotely operated vehicle Visor3. The 6-DOF mathematical model Visor3 is presented using two coordinated systems: Earth-fixed and body-fixed frames. navigation, guidance, (NGC) structure divided into three layers: high level or mission planner; mid-level path low formed by navigation systems. nonlinear model-based observer developed extended Kalman filter (EKF) which uses linearization to estimate...

The Caribbean is one of the world’s most vulnerable regions to projected impacts climate change, and changes in coral reef ecosystems have been studied over last two decades. Lately, new technology-based methods using satellites unmanned vehicles, among others emerged as tools aid governance these by providing managers with high-quality data for decision-making processes. This paper addresses development a Google Earth Engine (GEE)-based application use management processes shallow...

This paper addresses the hydrodynamic modelling of an inspection-class remotely operated vehicle using a viscous-flow solver for accurate prediction manoeuvring coefficients needed control purposes. The 6-DOF differential nonlinear equation motion ROV visor3 is first described with emphasis on terms. Then, model assembled from data obtained Virtual Captive Test (VCT) approach, where experiments such as Planar Motion Mechanism (PMM) are simulated CFD. In this work, Maritime Research Institute...

this paper addresses the comparison of features, extracted in time domain, from vibration, acoustic emission, and current signals, for identification eight levels severity pitting a gearbox. The signals were first acquired using gearbox lab experimental test bed. Then, twenty features domain each signal; these are ranked by Chi squared entered into KNN classifier, which allows evaluation classification accuracy signal performing an analysis features. results indicate that vibration AE...

This paper reports on the design of an open source-based control platform for underwater remotely operated vehicle (ROV) Visor3. The vehicle’s original closed is first described. Due to limitations previous infrastructure, modularity and flexibility are identified as main guidelines proposed design. new includes hardware, firmware, software, architectures. Open-source hardware software platforms used development system’s architecture, with support from literature extensive experience...

The overarching vision of Society 5.0 seeks to integrate technology enhance the quality life and address social issues, with primary goal creating human-centered communities, which nowadays represent inhabitants Smart Cities. In this context, work addresses design a modular strategic platform for smart supervision public expenditure, be used by Directorate Information, Analysis, Immediate Reaction (DIARI) General Comptroller Republic (CGR) Colombia as significant contribution towards...

Tensegrity systems have been used in several disciplines such as architecture, biology, aerospace, mechanics, and robotics during the last 50 years. However, just a few references literature stated possibility of using ocean or energy-related applications. This work addresses kinematic dynamic analyses planar tensegrity mechanism for wave energy harvesting. Ocean mechanics most important concepts related to fluid–structure interaction are presented. Then, 3 degrees freedom (3-dof) mechanism,...

Rotating machinery plays an important role in industries for motion transmission machines; the breakdowns of gearboxes are mostly produced by gear and bearings failures. Thus, some strategies sought to avoid unscheduled stops, or catastrophic damages, order reduce maintenance costs increase reliability. This paper describes a methodological framework detect eleven rotating faults using feature ranking methods support vector machine, based on information that comes from measured vibration...