Centro Universitario FEI: Recent submissions
Now showing items 1041-1060 of 2182
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Effects of weld strength mismatch on J and CTOD estimation procedure for SE(B) specimens
(2009)This work examines the effect of weld strength mismatch on fracture toughness measurements defined by J and CTOD fracture parameters using single edge notch bend (SE(B)) specimens. A central objective of the present study ... -
Multivarible robust control with time-domain specifications: Servo and regulator problems
(2007)The robust design of compensators and the input scaling aiming setpoint tracking and disturbance rejection with time-domain specifications are presented from a perspective of loop-shaping. Since there is not an explicit ... -
Minimum-time anti-swing motion planning of cranes using linear programming
(2013)A novel method to solve the minimum-time anti-swing motion planning problem for cranes based on the use of linear programming is proposed. It is shown that its solution can be obtained by solving a sequence of fixed-time ... -
Design of robust controllers with time domain specifications Projeto de controladores robustos com especificações temporais
(2005)The robust design of compensators with time domain specifications aiming setpoint tracking and disturbance rejection is discussed in this paper from a perspective of loop shaping. The constraints to provide robust disturbance ... -
A CFD analysis of the flow dynamics of a directly-operated safety relief valve
(2018)© 2018 Elsevier B.V.A three-dimensional numerical study on steady state was designed for a safety relief valve using several openings and inlet pressures. The ANSYS-CFX® commercial code was used as a CFD tool to obtain ... -
The sheet metal formability of AA-5083-O sheets processed by friction stir processing
(2015)© 2015 G. F. Miori et al.The aim of this study is to determine the sheet metal formability of AA-5083-O sheets processed by the Friction Stir Processing (FSP). The FSP process was studied and a FSP tool was built. Processing ... -
Surface integrity analysis in the super duplex stainless steel ASTM-A890 after machining
(2008)The purpose of this paper was to study the main effects of the turning in the superficial integrity of the duplex stainless steel ASTM A890-6A. The tests were conducted on a turning centre with carbide tools and the main ... -
Numerical and experimental modeling of thermal errors in a five-axis CNC machining center
(2018)© 2018, Springer-Verlag London Ltd., part of Springer Nature.This work aims at the establishment of methodology to model and analyze the thermal errors of a five-axis CNC machining center, from an estimated temperature ... -
Clinical application of thermography for energy balance in athletes – State of the art and new paradigms Aplicação clínica da termografia para equilíbrio energético em atletas – Estado da arte e novos paradigmas Aplicación clínica de la termografía para equilibrio energético en atletas – Estado del arte y nuevos paradigmas
(2018)© 2018, Redprint Editora Ltda. All rights reserved.This article aims to describe the evolution of techniques that have enabled the proper application of the Laws of Thermodynamics for physical activity and athletes. The ...