Ingeniare最新文献_第10页

Gestión del conocimiento y cultura organizacional en instituciones de educación superior chilenas 智利高等教育机构的知识管理与组织文化

Ingeniare Pub Date : 2022-06-01 DOI: 10.4067/s0718-33052022000200266

Emilio Rodríguez-Ponce, Liliana Pedraja-Rejas, Camila Muñoz-Fritis, Carmen A. Araneda-Guirriman

引用次数: 1

Modelo para simulación de la potencia de flujo en tuberías conductoras de petróleo pesado con comportamiento seudoplástico 具有伪塑性行为的稠油管道流量功率模拟模型

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100171

Héctor Luis Laurencio Alfonso, Yoalbys Retirado Mediaceja, José Francisco Falcón Hernández, Enrique Torres Tamayo, Marcelo Fabián Salazar Corrales

{"title":"Modelo para simulación de la potencia de flujo en tuberías conductoras de petróleo pesado con comportamiento seudoplástico","authors":"Héctor Luis Laurencio Alfonso, Yoalbys Retirado Mediaceja, José Francisco Falcón Hernández, Enrique Torres Tamayo, Marcelo Fabián Salazar Corrales","doi":"10.4067/s0718-33052022000100171","DOIUrl":"https://doi.org/10.4067/s0718-33052022000100171","url":null,"abstract":"In the transport systems of heavy oils through conductive pipes, the need was found to model the flow power, considering the effects of mixing in laminar regime and the non-stationary nature of the fluid. In the present investigation four components were taken into account to model the flow power, the flow power due to the viscous stress of the fluid, the additional flow power due to mixing effects in the pipe, the non-stationary flow power and the flow power necessary to overcome potential energy changes. For the identification of the coefficients of the theoretical empirical model, it was experimented with temperature variations from 40 to 65 oC, for diameters 0,2 and 0,3 m; where it was simulated taking the flow rate with the average value of 0,925, being considered a pseudoplastic fluid. The theoretical empirical model obtained simulates the flow power with an average error of 4,5%; which is recommended for the implementation in the design and energetic evaluation of crude oil pumping systems with pseudoplastic behavior and non-stationary character.","PeriodicalId":40015,"journal":{"name":"Ingeniare","volume":"24 10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85215173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estudio de caso y modelado matemático en la formación de ingenieros. Caracterización de habilidades STEM 工程师培训中的案例研究和数学建模。STEM技能特征

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100037

María D. Aravena Díaz, Danilo Díaz Levicoy, Francisco Rodriguez Alveal, Noemí Cárcamo Mansilla

引用次数: 1

Dynamic structural analysis in a 2U CubeSat considering quasi-static loads 考虑准静载荷的2U立方体卫星动力结构分析

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100094

Vitor Hugo Lopes Costa Lima, Rômulo do Nascimento Rodrigues, Pierre Maurice Christophe Lamary, Roberto de Araújo Bezerra

{"title":"Dynamic structural analysis in a 2U CubeSat considering quasi-static loads","authors":"Vitor Hugo Lopes Costa Lima, Rômulo do Nascimento Rodrigues, Pierre Maurice Christophe Lamary, Roberto de Araújo Bezerra","doi":"10.4067/s0718-33052022000100094","DOIUrl":"https://doi.org/10.4067/s0718-33052022000100094","url":null,"abstract":"Nowadays, the use of the CubeSat standard for satellites design has become a strong appliance in space industries and universities because of its low cost. In its simpler model a CubeSat , consists of a cubic nanosatellite with less than 1,33 kg and 10 cm of edge. The present work was done computational simulations using the finite element method since computational simulations are cheaper to do vibration tests. It was carried out modal analyses comparing five CubeSat structures, where it was evaluated the presence of electronic board (without electronic elements), static loads, two different aluminum alloys, and the influence of additional mass in the PCB (Printed Circuit Board). CAD software was used for the structures’ design following the CubeSat specifications, and all the simulations were carried out in a finite element software, in a range of 0 to 1000 Hz. It was designed one structure to do initial simulations, followed by the design of 4 structures more adjusted to the CubeSat requirements. In the end, results showed the influences of each present condition on the satellite. It was noticed that influences of the load in the vibration shape and less than 2% in other results. The material available to build a CubeSat for tests was validated concerning the recommended aluminum alloy.","PeriodicalId":40015,"journal":{"name":"Ingeniare","volume":"234 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76911274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Poliuretano urea termoplástico modificado con ricinoleato de etilenglicol 乙二醇蓖麻油酸改性聚氨酯热塑性尿素

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100082

Alneira Cuellar Burgos, Fabio Augusto Mesa Rueda, Carlos David Valencia Eraso

{"title":"Poliuretano urea termoplástico modificado con ricinoleato de etilenglicol","authors":"Alneira Cuellar Burgos, Fabio Augusto Mesa Rueda, Carlos David Valencia Eraso","doi":"10.4067/s0718-33052022000100082","DOIUrl":"https://doi.org/10.4067/s0718-33052022000100082","url":null,"abstract":"This work synthesized a polyurethane urea copolymer (PUU) and polyurethane urea modified with 5% molar of ethylene glycol ricinoleate (PUU5R). Ethylene glycol ricinoleate (REG) was synthesized, characterized, and introduced in the first stage of the PUU reaction. The characterization of the modified PUU5R product was carried out employing Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), nuclear magnetic resonance (NMR), and mechanical tests in traction mode. Through FTIR, it was possible to identify characteristic modes for the PUU and PUU5R. The most relevant modifications of the modification on the -CO vibrational mode located at 1630 and 3440 cm –1 corresponding to the vibrational mode of the -NH group free of bonding hydrogen that indicates an increase in the hydrogen bonds of the urea group and a reduction in the urethane group of the modified product, and by NMR the -CH proton of the ricinoleate unsaturation in 5.4 ppm of the PUU5R was detected verifying its incorporation in the PUU. Through DSC thermal tests, a reduction in cold crystallization and an increase in the Tg of the product were established due to the structural change caused by the pendant group of ricinoleate. However, TGA thermograms do not show relevant changes in its thermal stability. Finally, the mechanical tensile tests for the modified PUU5R product show an increase in modulus and a reduction in elongation.","PeriodicalId":40015,"journal":{"name":"Ingeniare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82144197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

La fuerza del sol: Arica y Parinacota como polo de desarrollo de aplicaciones solares para zonas áridas y semiáridas 太阳的力量:阿里卡和帕里纳科塔作为干旱和半干旱地区太阳能应用开发的极点

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100002

Lorena Cornejo Ponce

引用次数: 0

Análisis de los algoritmos de planificación de trayectorias RRT, PRM y Voronoi en la solución de un laberinto modular controlado por una plataforma de dos GDL 分析RRT、PRM和Voronoi路径规划算法，求解由两个GDL平台控制的模块化迷宫

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100157

Iván Santiago Palacios Serrano, Christyan Cruz Ulloa, Manuel Barraza Rodríguez

引用次数: 0

Optimal design of leaf springs for vehicle suspensions under cyclic conditions 循环工况下车辆悬架钢板弹簧的优化设计

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100023

D. Mantilla, N. Arzola, Oscar Araque

{"title":"Optimal design of leaf springs for vehicle suspensions under cyclic conditions","authors":"D. Mantilla, N. Arzola, Oscar Araque","doi":"10.4067/s0718-33052022000100023","DOIUrl":"https://doi.org/10.4067/s0718-33052022000100023","url":null,"abstract":"The suspension systems are designed to provide good performance in terms of comfort and maneuverability and to satisfy other requirements such as fatigue strength. This study focuses on the leaf springs, a classic mechanism; leaf springs are still being extensively used in several types of vehicles because of their high load capacity and low manufacturing and maintenance costs. Its dynamic behavior assesses stationary nonlinear preload state components to provide considerable added value to this suspension type. This assessment considers the contact condition of the suspension’s components and the large deflections and tightening torques observed in the whole assembly. Furthermore, the components of the non-suspended mass subsystems, such as tires, shock absorbers, and stabilizer bars, are characterized according to the simplified models for reducing their computational cost. In addition, a commercial test vehicle is used for simulating the complete system using three-dimensional modeling for describing its most relevant components in terms of their mass and rigid connection. The vehicle is additionally analyzed using multibody system simulations (MBS) coupled with the finite element method (FEM) in an implicit nonlinear transient environment using the ANSYS APDL solver. This dynamic simulation is parameter-driven for obtaining the experimental design and determining the optimal suspension stiffness and damping features required for transporting suitable load sizes.","PeriodicalId":40015,"journal":{"name":"Ingeniare","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90761936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Prediction of limit drawing ratio in deep drawing process of Mg alloy AZ31 using Fuzzy Logic 用模糊逻辑预测AZ31镁合金拉深极限拉深比

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100008

Marina Maia Araripe, Francisco Elicivaldo Lima, Rômulo do Nascimento Rodrigues

{"title":"Prediction of limit drawing ratio in deep drawing process of Mg alloy AZ31 using Fuzzy Logic","authors":"Marina Maia Araripe, Francisco Elicivaldo Lima, Rômulo do Nascimento Rodrigues","doi":"10.4067/s0718-33052022000100008","DOIUrl":"https://doi.org/10.4067/s0718-33052022000100008","url":null,"abstract":",2020 ABSTRACT The interest in magnesium alloys has progressively increased in several industrial fields in recent years, and AZ31 has become an object of the study of lightweight development. Due to its low density and high specific strength, magnesium alloys represent a promising alternative to aluminum alloys and high strength steels, especially for applications in the automobile industry, being used in structural components to reduce weight and, consequently, improve performance fuel efficiency. In recent decades, several tests were conducted to evaluate the formability of AZ31 and showed its high dependency on the temperature range. The main objective of the present study is to propose a fuzzy model to predict the limit drawing ratio (LDR) of an AZ31 sheet by varying its thickness, temperature, and speed in wide ranges. In order to validate the proposed model, comparisons were made with 6 studies performed by other authors –an amount of 46 experimental tests–, showing a very good agreement between experimental results and fuzzy results. The model predicts the limit drawing ratio with an accuracy of 92.1%.","PeriodicalId":40015,"journal":{"name":"Ingeniare","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85551687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sistemas fotovoltaicos conectados a red: Una propuesta para evaluar y cuantificar fallos en el generador fotovoltaico 并网光伏系统:评估和量化光伏发电机故障的建议

Ingeniare Pub Date : 2022-03-01 DOI: 10.4067/s0718-33052022000100197

Roger Anner Proenza Yero, José Emilio Camejo Cuán, Rubén Ramos Heredia, Juan Raúl Massipe Hernández, Luis Vázquez Seidedos

引用次数: 1