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The problems formation and localization of Off-nominal Situations (OnS) on an Hardware/Software Complex of Crew's Service of the Regeneration Life Support System Operation (HSCCSO) are considered in this paper both at functions separate system and at deviations of crew's inhabitancy controllable parameter values. The HSCCSO is developed for the first ground long-term experiment under ‘Mars - 500’ project. The purpose of this paper is to examine HSCCSO taking into consideration the key of the future mission to Mars (extremely long duration, autonomy, complicated communication peculiarities with the ground Mission Control Center (MCC) because of signal delay, and limited stock of expendables). It is planned to simulate off-nominal and emergency situations caused by failures of on-board LSS and/or the human factor: insufficient crew efficiency, degraded professional reliability and soon.

The paper is dedicated to adequacy analysis of Simulation Model of Human Body Thermoregulation System (HTSSM), intended for design of air/space Autonomous Life Support System (ALSS) The formal description of the HTSSM consists 51 equations to describe different body compartments, which consider different properties and individualities of human body as well as complexity dynamic characteristics of the studied functional system, and also includes the equation, which describes heat exchange processes in the heart and lung area. Active heat exchange mechanisms of thermoregulation system are described on the basis of fuzzy set theory. This paper discusses the HTMSS and its applications for: The analysis of a human heat state under heat stress conditions for a helmet area ventilation system design. The analysis of the temperature/moisture fields in the extra-vehicular suit for design of thermal control system. The results of computed experiments obtained using the HTMSS are also reviewed.

The paper reviews one of the possible approaches to developing an analysis technique of Oxygen Generation System (OGS) thermal conditions. As an object of simulation a 30% KOH water electrolysis system with forced electrolyte circulation through the both electrolyzer chamber followed by separation of a gas/liqiud mixture using hydrophobic porous membranes. A formalized description of the key system components (an electrolyzer, set of coolers, separator, canister) is presented. A mathematical model simulating stationary and non-stationary thermal conditions of the system is constructed and its programming is reviewed. Some results of computational and operational experiments obtained for checking the model adecuacy are presented.

This paper deals with the Complex Simulation Model of Human Organism (HOCSM) intended for various problems' solutions of the Manned Space Objects Ecological and Technical System (ETS) development. Among the fundamental problems of the ETS development requiring the HOCSM adaptation are: (a) forming the mass and energetic loads of spacecraft crew for the simulation of the ETS functions; (b) the investigation of environment effects on a human organism and its responses; (c) the analysis of interactions between the crew and the individual life support system or its functional blocks; (d) the decisions of design problems for development of the anti exposure and space suits. The HOCSM, under consideration, is based on the general theory of functional systems and includes formalistic descriptions of following human organism functional systems: a cardiovascular systems, an external respiration system, a thermoregulation system and a water-salt balance system.

This paper deals with a Functions Analysis of the Integrated Regenerative Life Support System (IRLSS) that is of primary importance in forming the functional description and in predetermining the information description when in use the systems approach for the IRLSS Design. In order to attack the function temporary laws of the IRLSS subsystems and functional blocks the following the principal questions are going to consider: (a) formulating the mains' problems that may be settled when use of the function's analysis and choosing of the methods making available their solutions; (b) forming the mathematical descriptions of the technological processes and working on this basis the simulation models for the subsystem apparatuses; (c) creating the methodological and information support and associated software. The employment of given software for the solution of the design's individual problems and the some results obtained in computed experiments will discuss also.

This paper deals with a Systems Approach for the Design of an Integrated Regenerative Life Support system (he IRLSS) based on physico-chemical methods of transforming of the crew metabolic-waste products to the controlled human environment components. To solve the initial problem of the technology's synthesis the following principal questions are going to be considered: (a) the formation of alternatives discrete set; (b) the elaboration of the integral and hypothesis structure fr IRLSS and its formal description; (c) the creation of the methodology and information support and the associated software. The IRLSS database and the application of the given software for the solution of the design's individual problems will also be discussed.

This paper deals with the Functions Simulation Model (FSM) of the Manned Space Orbital Station Integrated Life Support System (IRLSS) intended to research its functions temporary responses by the design and complex tests. The FSM in use repeats the Manned Space Orbital Station Ecologica-Technical System (ETS) structure and includes the formalistic functional description of the IRLSS subsystem and the environment links: the Manned Space Orbital Station design, the Spaceship Crew (CREW), the Space Cabin Atmosphere (SCA) the Thermal Control System (TCS), the Energy-Support System (ESS) and the auxiliary systems. The formalistic functional descriptions of the IRLSS subsystems are based on its presentation in the form terminal automata with the functional target of the internal states space. The given simulation model is correlated to data from the IRLSS ground complex tests of the orbital space station “Mir” habitable module.