Keresés
Keresési eredmények
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Study on Nonlinear Behavior of Variable Thickness Plates
72-80Megtekintések száma:66The analysis of variable-thickness plates is much more complicated than that of uniform-thickness plates because variable coefficients occur in the equations. In reality, this analysis is of great interest in various engineering disciplines, such as civil engineering, aerospace engineering, machine design, and so on. Although there is extensive literature on analyses of plates with constant thickness, a rather limited amount of technical literature is available on the solutions to problems dealing with plates with nonuniform thickness. The reason is that the analytical solutions meet insurmountable difficulties. Besides, the nonlinear analysis process also faces more difficulties than the linear analysis of structures. For these reasons, the nonlinear behavior of variable-thickness plates based on a finite element procedure is presented in this study. Although the topic is not special, it will help the engineer have a specific view of the nonlinear bending of the plate with variable thickness. This survey will be based on the change in geometrical parameters. Numerical solutions are then presented to verify the simplicity of this proposed procedure.
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Use of ANSYS Software for the Acetabular Cup Structure Analysis out of the Hip Implant
1-6.Megtekintések száma:358Modelling the hip implant has been one of the most important researches over the past few decades. In addition, using the ANSYS software for this purpose is well-known procedure to understand the real reaction of the hip implant parts during the daily life of the installed part. This study is to focus on the practical part of the use of ANSYS software to analyse the performance of the hip implant through the feature of structure analysis available in the ANSYS. The research applies the static loads behaviour only with the help of the static structural analysis to view the advantages and the disadvantages of every design, which helps us estimate the implant’s behaviour. The study investigates the optimization of the acetabular cup using the lattice optimization along with the infill option available in the ANSYS software in order to optimize the stress and the fixture of the cup inside the pelvis.
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Parameter Estimation of Drag Coefficient and Rolling Resistance of Vehicles Based on GPS Speed Data
109-115Megtekintések száma:169In this paper, a parameter estimation method of the model-based design approach is applied to estimate the drag coefficient and the rolling resistance coefficient of a vehicle. In fact, a constant-force parameter (c_const) and a velocity-square-force parameter (c_square) are in the vehicle model, and these result in the sum force applied along the translational DOF that models the vehicle. It is only an assumption that the constant force is the rolling resistance and the force proportional to the square of the velocity is the drag force of the air. Only GPS speed data is used for the estimation process. The conclusion is that parameter estimation is a good alternative when expensive measurement devices are not available to measure the force losses separately and directly.
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Saját fejlesztésű vezérlőrendszer Open-Source alapokon
97-105Megtekintések száma:106A Debreceni Egyetem Épületmechatronikai kutatóközpontjában, a központban a legújabb épületautomatizálási eszközök kaptak helyett az oktatás színvonalának növelése érdekében. Az általunk kifejlesztett rendszer egy egyedülálló beágyazott rendszer, amely újrakonfigurálható és szabályozható az adott feladatok ellátása végett. A vezérlő rendszer bizonyítottan alkalmas lehet ipari gyártósori rendszerekbe való integrálásra.
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Six Sigma az előregyártásban: esettanulmány a betonacél megmunkálásnak fejlesztéséről
49-60Megtekintések száma:129A lean folyamatfejlesztések kulcsfontosságúak a termelési hatékonyság javítása érdekében. Kutatásunkban a DMAIC módszertan alkalmazásával vizsgálom az MEP üzem fejlesztését a lean six sigma jegyében. Kiemelve az előregyártott vasbeton gyártás kihívásait, a tanulmányom részletezi, hogyan segít a lean menedzsment a folyamatok hatékony tervezésében és méréseiben. A lean six sigma módszertan bevezetése folyamatok standardizálásával és hatékony fejlesztésével járul hozzá az üzem hatékonyságához.
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Kinematics and Control of a Planar Cable Robot
88-95Megtekintések száma:137This paper deals with the kinematics and control of a planar cable robot [1], which is driven by four DC motors with gear. Cable robots are frequently used e.g., for the motion of cameras in sport halls and stadiums and also in high storage logistical systems [2]. Main goal of this research work is to design and build a test bench with low budget, which can model the motion of real life cable robots.