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Griazev Mikhail Vasilievich began his career in 1978 while studying at the university as a laboratory assistant of Industry Research Laboratory-8 of the Tula Polytechnic Institute.

After graduating from graduate school and defending his thesis he worked as a junior researcher at the research unit of TPI.

From 1988, he worked at the Department of Computational Mathematics, later renamed the Department of Mathematical Modeling, first as an assistant, then as an assistant professor. In 2002 he defended his doctoral thesis. From September 2004, he worked as a professor at the Department of Physical Education and Sport at Tula State University and served as the head of the department.

As part of the academic work, he organized the formation of a whole range of new academic disciplines, trained graduate students and applicants for academic degrees, annually fulfills the volume of the established academic load.

In terms of the educational work of Professor Gryazev M.V. coordinated the work of the department staff to provide new courses with a full range of methodological support; work was organized on the pre-university training of future applicants.

In the field of scientific research Gryazev M.V., a great deal of work is underway to implement a number of federal and industry research programs headed by him. Scientific activities of M.V. Gryazev is devoted to modeling complex systems. Three main periods can be distinguished in it: work at the ACS faculty under the direction of B.М. Podchufarova, preparation and defense of a doctoral dissertation at the department of computational mathematics (mathematical modeling) and work at the Department of Physics and Mathematics.

The first period is entirely devoted to the development of a controlled system of a gas-dynamic experiment on the simulation of supersonic flow around bodies with a targeted change in the properties of the latter. With the direct participation of M.V. Gryazev developed the theoretical foundations of such an experiment. The results of theoretical studies formed the basis for a number of inventions. The main achievement of this period was the creation of an original percussion-type wind tunnel that runs on compressed air and allows experiments on the flow around small-sized objects — small arms bullets and small-caliber automatic cannons. Based on these studies, M.V. Gryazev defended his thesis for the degree of candidate of technical sciences.

During the second period, M.V. Gryazev was used to study the interaction of a deformable drummer with an obstacle of complex structure. This direction is directly related to the increase in the effectiveness of ammunition, aimed at damaging the body, protected by special means – body armor, helmets, etc. Thereby M.V. Gryazev realized the transition from the study of purely technical systems to biotechnical ones.

The methodological foundations of the research outlined in his works made it possible to link into a single whole the characteristics of the movement of the munition at the target, the mechanical properties of its elements, protective equipment and the properties of the biomaterials of the protected organism. The application of the achieved results in the practice of KBP (the city of Tula) led to the creation of a new, highly effective penetrating bullet for a Makarov pistol adopted by the Russian army. At the same time, it was found that to study the stopping effect of the munition, it is necessary to develop a model of the organism as a complex biological system, controlled by signals from the central nervous system, and also to study the properties of the biomaterials of a living organism.

At the third stage, M.V. Gryazev headed a group of employees of the departments of mathematical modeling and FViS, engaged in modeling the controlled and passive movements of the human body. The basis of the model itself has adopted a system of curved rods and three-dimensional bodies, representing the bones of the skeleton. Bone joints are modeled with imperfect hinges, and skeletal muscles are adopted by “drives” that provide controlled movement. His works present the mathematical foundations of modeling a deformable skeleton and reflect aspects of the use of a mathematical model both in the analysis of emergency situations (in the passive mode) and in sport (in the active mode). A method of determining the characteristics of skeletal muscles in vivo by analyzing the results of exercises on special simulators is proposed.

The immediate efforts of M.V. Gryazev allowed to expand the scientific relations of the department with leading universities and research centers of the country, as well as to establish cooperation with leading scientists in the field of ammunition and biomechanics. In total, M.V. Gryazev has 7 copyright certificates in the field of defense technology and 55 scientific papers, 2 monographs and a number of teaching aids.