Iu G Konakhevich

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To obtain reference data for a statistically substantiated evaluation of man's tolerance to the local pressure on the head (as applied to protective helmets kept on for a long time), 86 experiments were carried out in which 11 test subjects participated. The local pressure of 0.05-0.5 kg/cm2 was applied to 8 areas of the head. The tolerance time was(More)
Experimental data concerning the effect of head shifts on the displacement of body mass center in the man-chair system were obtained. The data helped to derive a quantitative evaluation of the relationship between body mass center displacements and head shifts. This relationship can be used to assess the displacement of body mass center in the man-chair(More)
This paper reviews the results of developing a model of craniocerebral trauma. The study led to the manufacture of a man's head model and to the development of a criterion of impact safety. The model and the criterion can be used for experimental assessment of pilot's protective helmets.
This paper considers the problem of selecting the structure of a mathematical model that describes the kinematic reactions of the human body during traffic accidents. The paper presents a calculation procedure and a program that allow selection of a structure (up to 17 elements) without deriving repeatedly equations of motion as well as automatic(More)
The trajectories of head movements in the helmet and velocities of impact contact with the seat and anterior of the cockpit were calculated as applied to every stage of the catapulting process and mass-inertia parameters of helmets taken into account. Kinematic models were used to describe biomechanic parameters of the head-neck system. Special attention(More)
This paper discusses problems related to the ambiguous formulation of biomechanical requirements for the quality of protection and rescue means. In order to objectivize these requirements, it is recommended to use the functional strength concept which reflects both mechanical (with specific features characteristic of biomechanical systems taken into(More)
Data on the dependence of the clinical manifestations of the initial period of craniocerebral trauma in a human being on the physical parameters of the blow were treated by the method of correlation and regression analysis. A regression equation was obtained specifying linear dependence between the traumatic value of the blow and the characteristics of the(More)
In order to determine man's tolerance, clinical symptoms of craniocerebral injuries were compared with physical characteristics of impacts. A ranking scheme of clinical manifestations of craniocerebral injuries as applied to specific flight conditions was developed. With respect to the craniocerebral injury biomechanics, clinical data were taken under(More)
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