| Authors |
Bastrygin Kirill Igorevich, head of laboratory, Research Institute of Physical Measurement (8/10 Volodarskogo street, Penza, Russia) , it@pnzgu.ru
Trofimov Aleksei Anatol’evich, doctor of technical sciences, professor, sub-department of information and measuring equipment and metrology, Penza State University (40 Krasnaya street, Penza, Russia), Kamitte11@gmail.com
Baranov Aleksandr Sergeevich, design engineer, Research Institute of Physical Measurement (8/10 Volodarskogo street, Penza, Russia), sensor@niifi.ru
Gromova Anna Andreevna, engineer-adjuster, Research Institute of Physical Measurement (8/10 Volodarskogo street, Penza, Russia), sensor@niifi.ru
Efimov Pavel Nikolaevich, head of laboratory, Research Institute of Physical Measurement (8/10 Volodarskogo street, Penza, Russia), sensor@niifi.ru
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| Abstract |
Background. Imitating modeling is the powerful instrument of research of behavior of real systems. Methods of imitating modeling allow to collect necessary information on behavior of system by imitating experiment. The purpose of imitating modeling is definition of influence of impact of external factors on operability of the piezoelectric sensor of pressure intended for transformation to an electric signal of fast-variable pressure in liquid and gaseousenvironments ("oxide" or "naftit").
Materials and methods. As a method of research simulation modeling in case of which the studied object (sensor) is replaced with its model with which experiments for the purpose of obtaining information on this object are made was used. In experiment the specialized software of Ansys and Solidworks allowing to avoid the expensive and long cycles «design-manufacture-test» was applied.
Results. As a result of modeling of influence of external factors on operability of the sensor are determined: coefficient of margin of safety on plastic deformation in case of impact of static pressure and pressure with an overload for the case of a sensitive element; coefficient of margin of safety on destruction in case of impact of static pressure and pressure with an overload; time of complete equalization of temperature fields; coefficient of margin of safety on destruction in case of impact of sinusoidal vibration; tension arising in case of impact of mechanical blows in each direction.
Conclusions. The put constructive solutions of the sensor of fast-variable pressure confirm resistance of the sensor to such destabilizing factors as sharp difference of temperatures, differences of pressure, high levels of vibration and shock loadings.
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| Key words |
imitating modeling, the piezoelectric sensor, pressure, the external influencing factors, firmness, temperature, vibration, sensitive element
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