Model of the assessment of quality of manufacturing techniques of high-pressure tanks at design of the reusable head fairing

Results of expert evaluation of indicators of quality of manufacturing techniques of high-pressure tanks at design of the reusable head fairing of carrier rockets of space appointment are given in article. The research problem which is characterized by discrepancy of the quality level of manufacturing techniques of high-pressure tanks to requirements to the reusable head fairing of carrier rockets of space appointment is formulated. The task in determination of signs of manufacturing techniques of the high-pressure tanks which are subject to improvement in ensuring design of the reusable head fairing is set. The solution of the objective represents the analysis and generalization of results of expert evaluation of manufacturing techniques of high-pressure tanks. Quality evaluation of manufacturing techniques of high-pressure tanks is carried out with use of the modified quality expansion function method (quality function deployment - QFD). In research with involvement of leading experts in area of creation of the head fairing of carrier rockets of space appointment expert evaluation is performed: scales of the importance of indicators of quality, levels of influence of signs of technical solutions on development of indicators of quality, interrelation of signs, ranks of quality of technical solutions, ranks of quality of signs of technical solutions. The result of research is characterized by the fact that for development of the reusable head fairing of carrier rockets of space appointment it is necessary to increase durability of high-pressure tanks, and also to increase corrosion resistance of high-pressure tanks. Relevance of research consists in improvement of design of new equipment at possible planning of modernization of perspective carrier rockets. Novelty of research consists in modification of the method of function of expansion of quality of QFD regarding determination of scales of the importance of indicators of quality, and also ranks of quality of signs of technical solutions.