ISSN 1991-2927
 

ACP № 1 (55) 2019

Author: "Aleksei Aleksandrovich Dozorov"

Aleksei Aleksandrovich Dozorov , Federal Research-and-Production Center Open Joint-Stock Company ‘Research-and-Production Association ‘Mars’, Post-graduate student; graduated from the Faculty of Machine-Building of Ulyanovsk State Technical University; Deputy Chief of Production Manager Service at Federal Research-and-Production Center Open Joint-Stock Company ‘Research-and-Production Association ‘Mars’; an author of articles in the field of modeling of processes of shock mechanism motion. [e-mail: a.dozorov@bk.ru]A. Dozorov,

Vladimir Kuzmich Manzhosov, Ulyanovsk State Technical University, Doctor of Engineering, Professor; graduated from the Faculty of Machine-Building of Frunze Polytechnic Institute; Head of the Theoretical and Applied Mechanics Department at Ulyanovsk State Technical University; an author of articles, monographs and inventions in the field of dynamics of machines, modeling of shock processes. [e-mail: v.manjosov@ulstu.ru]V. Manzhosov

Motion Modes of Shock System for Fluctuating Force Linear Function With Changing Characteristics 36_6.pdf

Multiple technological processes are often related to using shock systems for performing of cyclic shocks on the object. Research of such systems’ dynamics, stability of motion, shock activity level requires examination of shock processes in systems with different structures. At the same time, a number of problems, confining an area of application of shock systems, arise. They are the following: finding of solutions by exact methods; taking into account complimentary non-liner factors; analysis of transient processes; detection of limit cycles of motion. These problems can be solved by means of developing the effective dynamic system simulation procedures based on the adequate mathematical models, process visualization, and representation and good processing of simulation results. The paper [1] provides an examination of the model of shock system, as well as the definition of its parameters, ensuring a required low of motion. However, a considered piecewise constant force impact may be applied to an ideal situation that is difficult to implement with a real system. Thus, it is required to know how the change of force impact would effect the mode of striker’s motion. The present paper deals with a model for shock system at force impact as linearly increasing and linearly decreasing function when force impulse, duration and period of the force impact are constant as at the piecewise constant function. A mathematical model for the shock mass motion under condition of collision with rigid barriers is given. The modeling of shock system motion at the force-impact piecewise constant, linearly increasing and linearly decreasing function is implemented. The comparative analysis of presented simulation results is performed. The motion mode of shock system at linearly increasing and linearly decreasing functions has been changed against the mode at the force-impact piecewise constant function (although the force impulse was constant in both cases). Following the results of implemented work, it may be deduced that the changing the force linear function characteristics, when impulse and duration of force, and part of cycles are constant at an appropriate system-parameter option, does not misrepresent the cyclic mode of shock mass motion if the process would be estimated at such criteria as velocity of shock to the right barrier, implementing of one impact per a cycle at the maximal velocity, and a cyclic behavior of impact.

Shock system, motion modes of shock system, limit cycles of motion, modeling, cyclic mode of motion.

2014_ 2

Sections: Mathematical modeling

Subjects: Mathematical modeling.


Alexey Alexanderovich Dozorov, Federal Research-and-Production Center Open Joint-Stock Company Research-and-Production Association Mars, post-graduate student; graduated from the Faculty of Machine-Building of Ulyanovsk State Technical University; chief specialist at Federal Research-and-Production Center Open Joint-Stock Company Research-and-Production Association Mars; author of articles in the field of modeling of processes of shock mechanism motion [e-mail: a.dozorov@bk.ru]A. Dozorov,

Vladimir Kuzmich Manzhosov, Ulyanovsk State Technical University, Doctor of Engineering, Professor; graduated from the Faculty of Machine-Building of Frunze Polytechnic Institute; holds the Chair Theoretical and Applied Mechanics at Ulyanovsk State Technical University; author of articles, monographs and inventions in the field of dynamics of machines, modeling of shock processes [e-mail: v.manjosov@ulstu.ru]V. Manzhosov

Modeling of Transient Processes of Shock System Motion At Periodic Pulsing Force and When Collision With Rigid Barriers 30_8.pdf

The article deals with a model for the motion of a shock system at periodic pulsing force and collisions with rigid barriers. It also presents results of the system motion modeling.

Shock system, modes of shock system motion, limit cycles of motion, modeling, stability of motion.

2012_ 4

Sections: Mathematical modeling, calculi of approximations and software systems

Subjects: Mathematical modeling.


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