This paper tries to find the answers to the following questions: What does Situational Airworthiness (SA) truly mean from the viewpoint of the pilot ability to keep acceptable safety level on each phase of the aircraft mission execution? Which element of the aviation model has the highest influence on that pilot ability? Which sub-factors have the highest influence on the probability of achieving and maintaining an acceptable level of sub-areas of SA by the pilot during the preparation and execution of air missions? Moreover, the paper discusses sub-subjects as the definition of SA, relations between processes and the status of SA. The conclusions of the paper are partially based on the Authors’ research of the years 2012-2013.
The competition of international manufacturing networks creates pressure to increase the efficiency of manufacturing systems. In addition to this, indicative for the present period is the fact that the number of technical components in many products is increasing, and at the same time the requirements are growing for corresponding assembly, transport and logistical processes. These requirements can be administered and recognized in the scope of their complexity only through the use of an array of rapid and efficient methods in the form of a digital factory. This contribution points to the practical application of the Plant Simulation software module from the portfolio of the digital factory of Siemens PLM. This complex instrument with an environment for controlling the life cycle of a product enables repeated utilization of data, supports effective cooperation between individual units, and provides relevant data for each user who needs it, mainly from the viewpoint of strategic decision-making. The simulation of the entire flow of material, including all relevant divisions of manufacturing, storing and transport activities, is considered as the key component of the digital factory in industry and from this day forward is the most often used.
Summary. Aircraft wing design processes should comprise specific analyses oriented towards aeroelasticity, which is one of the essential factors determining flight envelope boundaries. For such cases, static or dynamic aeroelastic phenomena can be simulated using CFD simulation software. ANSYS software offers the fluid structure interaction (FSI) method for solving this multiphysics problem.
The aim of this article is to point out some peculiarities of airframe corrosion, the impact of external forces on aircraft skin elements and their impact on structural integrity. The corrosion process is generally associated with fatigue of aircraft structural elements due to the effect of many factors such as the type of loading, the properties of the materials, the corro-sive environment, etc. The article is not focused on corrosion processes, but on load factors that are specific to aircraft wing design elements and their influence on corrosion of critical struc-tural elements. Corrosion of the wing is perceived as a consequence of environmental impact on damaged surface protection of the skin and connecting parts (rivets, screws, and welded joints) caused by static and dynamic stress of the wing and also by the interaction of the indi-vidual structural elements as a whole. The dynamics of operation of individual structural ele-ments is further enhanced by the fatigue of the material. Early detection of corrosion processes has generally been and is crucial to overall safety of the aircraft. The proposals presented in the article are formulated in order to improve the system of work to ensure the safety of aircraft operation in terms of resistance to corrosion damage.
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