The paper presents recommended criteria of operational survivability of structures at the aircraft design stage. The criteria are based on a generalization of results of computational and experimental studies conducted in the TsAGI with companies O.K. Antonov, S.V. Il’yushin, A.N. Tupolev, and A.S. Yakovlev, taking into account foreign experience. Requirements for determining intervals between inspections to detect corrosion and fatigue damage are considered.
The development of methods and principles of foreign and domestic regulatory requirements that ensure the safe operation of civilian aircraft is considered.
The fulfillment of the standard requirements for fatigue and damage tolerance of aircraft structures is the basis for ensuring their safe operation. The paper analyzes the rules formulated in the U.S. FAA Standards and Recommendation Circulars, Soviet Airworthiness Standards, and Russian Aviation...
This article focus on the introduction of composite structure characteristics and background of usage in civil aviation, also on airworthiness requirements in FAR 25 which include raw materials, manufacturing processes, structure static strength, fatigue property and damage tolerance. The buildin...
This paper discusses some trends and recent advances in model-based Fault Detection, Isolation and Recovery (FDIR) for aerospace systems. The FDIR challenges range from pre-design and design stages for upcoming and new programs, to improvement of the performance of in-service flying systems. For...
One of the major challenges in advancing polymer electrolyte membrane fuel cell technology lies currently in the development of new durable polymeric membranes that will allow fuel cell operation at high temperatures without extensive humidification requirements. Access to these membranes promise...
Meat produced in vitro has been proposed as a humane, safe and environmentally beneficial alternative to slaughtered animal flesh as a source of nutritional muscle tissue. The basic methodology of an in vitro meat production system (IMPS) involves culturing muscle tissue in a liquid medium on a l...
A typical perfluorosulfonic acid (PFSA) polymer electrolyte membrane is composed of a single type of polymer in order to meet the strict requirements for a fuel cell membrane. The Arkema Inc. membrane technology provides a simple and lower cost route to the design of durable membrane materials. T...
Safe operation of the Balakovo nuclear power station's Unit 2 built around a VVER-1000 reactor at a thermal power output of 3120 MW with meeting of the safety criteria and compliance with the requirements of existing regulatory documents is substantiated. Results from measurements of process para...
One of the main structural requirements of a leading edge of a tailplane is to ensure that any significant damage caused by foreign object (i.e. birdstrike, etc.) would still allow the aircraft to land safely. In particular, leading edge must be certified for a proven level of bird impact resista...
The necessity of health-monitoring and supervising structures will be justified under aspects of reliability and safety as well as with regard to economical reasons. Considering the achievements in measurement techniques combined with computer techniques, the requirements on the evolution of effi...
