Parcourir Letecký ústav par date de publication
Voici les éléments 1-18 de 18
-
Shear strength of thin web – influence of lighting openings and diagonal tension
(Taylor & Francis, 2016-04-11)This article provides information about stress analysis of thin beam webs with and without lighting openings. The study described in this paper was carried out in order to investigate the influence of circular lighting ... -
Modifications of a simple I-beam and its effects on the stress state
(Taylor & Francis, 2016-12-20)The motivation for this work is a desire for a deeper understanding of the structural failures in a composite glider wing, which has been tested in the laboratories of the Institute of Aerospace Engineering, Faculty of ... -
Thermo-vacuum test chamber development for heat switch testing in simulated Martian conditions
(Brno University of Technology, 2017-05-15)In the fall of 2014 the Institute of Aerospace Engineering had been awarded by contract to perform Miniaturized Heat Switch testing. The Miniaturized Heat Switch was the unique technology developed by Italian company Aero ... -
Failure Index Based Topology Optimization for Multiple Properties
(Brno University of Technology, 2017-05-15)Aim of the presented work is to introduce a method which is being coded. It works in conjunction with an open-source finite element solver CalculiX. One of the topology optimization methods - The Bi-directional Evolutionary ... -
Timing Is Important: Unmanned Aircraft vs. Satellite Imagery in Plant Invasion Monitoring
(Frontiers Media SA, 2017-05-31)The rapid spread of invasive plants makes their management increasingly difficult. Remote sensing offers a means of fast and efficient monitoring, but still the optimal methodologies remain to be defined. The seasonal ... -
Aerodynamic Load Of An Aircraft With A Highly Elastic Wing
(Czech Technical University in Prague, 2017-09-05)In this article, a method for calculation of air loads of an aircraft with an elastic wing is presented. The method can predict a redistribution of air loads when the elastic wing deforms. Unlike the traditional Euler or ... -
Flight Test of Pilot-Aircraft Haptic Feedback System
(MATEC Web of Conferences, 2019-12-17)This research is focused on an innovative improvement of pilot-aircraft interaction and is targeted on small aircraft. Haptic feedback is performed by actuators mounted on an aircraft's controls. The purpose of the actuators ... -
Dimensionally Stable Laminates Under Thermal Loading and Their Applications
(EDP Sciences, 2019-12-17)There exist many types of structures, which are required to have stable dimensions within a wide range of temperatures. The specific nature of composites allows finding special conditions when a laminate stacking sequence ... -
Research of Effects of Defects on Stability Failures of Semi-monocoque Stiffeners
(Vilnius Gediminas Technical University (VGTU) Press, 2020-01-22)This article presents further results of the research of effects of model defects on the local buckling of compressed stiffeners in nonlinear finite element (FE) analyses. The main outcomes are confirmation of trends for ... -
Application of enhanced methods for safety assessment of FADEC
(Polish Maintenance Society, 2021-01-05)The paper deals with safety and reliability assessment as an integral part of the development process for modern aviation products with potentially critical functions. Focus is on digital engine control units, their ... -
Simulation of a maneuvering aircraft using a panel method
(Czech Technical University in Prague, 2021-04-30)We present a method for numerical simulations of a maneuvering aircraft, which uses a first-order unsteady panel method as the only source of aerodynamic forces and moments. By using the proposed method, it is possible to ... -
Influence of the Type of Adhesive on the Properties of the GFRP Composite Adhesive Joint, Determined on the Basis of the Static T-Peel Test
(Sciendo, 2021-09-01)The article presents the results of experimental studies determining the influence of the type of adhesive on the static strength properties of the Glass Fiber Reinforced Polymer (GFRP) composite joint determined on the ... -
Discrete material optimization with sandwich failure constraints
(Springer, 2021-10-01)Discrete material optimization (DMO) is a method, which was originally developed for designing composite structures via multi-material topology optimization principles. Current study applies DMO to sandwich structures with ... -
Bird strike as a threat to aviation safety
(Elsevier, 2021-12-08)This article discusses air safety and the importance of safety studies as an effective tool for detecting safety risks. It has to provide a brief overview of Aviation Safety Hazards with a detailed look at the danger of ... -
Analytical and Numerical Analysis of Thermal Structure
(Institute of Thermomechanics AS CR, 2022-05-12)Heat conductive structures were designed for the Miniaturized Heat Switch to improve its parameters which are not satisfying in the prior solution. The thermal conductivity is lower than 1.5 W·K-1 and weight is higher than ... -
Additive manufacturing capabilities for heat switch technology: Key challenges & knowledge gaps
(EUCASS association, 2022-09-28)The paper is to provide an overview of the key challenges and knowledge gaps in additive manufacturing of metals applied to two parts of a novel heat switch technology – a Baseplate and a Flexible thermal structure. Additive ... -
Experimental Research on the Influence of Structural Modifications of Adherends on the Load - Bearing Capacity of Lap Joints of S235JR Steel Sheets
(Sciendo, 2023-01-12)The paper presents the results of the research determining the impact of structural modifications of adherends on the load capacity of the joints determined in the static shear test. Tests of adhesive lap joints of S235JR ... -
Determination of the Parachute Harness Critical Load Based on Load Distribution into Individual Straps with Respect of the Skydiver’s Body Position
(MDPI, 2023-01-14)This article evaluates the redistribution of forces to the parachute harness during an opening shock load and also defines the ultimate limit load of the personal parachute harness by specifying the weakest construction ...