Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Virtual simulation of onboard electronic devices and systems Y.N. KOFANOV, S.Y. SOTNIKOVA A virtual simulation method has been developed for the early stages of the design of onboard electronic devices and systems (OES). The virtual model proposed for use in the design is an integrated model that implements the interconnection of dissimilar physical processes (electrical, thermal, mechanical, aerodynamic) caused by the simultaneous action of several operational factors on a single device or the entire system. The interconnection of physical processes realized in the virtual model allows for the first time to fully reflect the real physical state of the supporting structure and the complex physical state of the electronic components of the circuit located on the printed circuit boards of the OES. In this case, the output functional characteristics of the OES in virtual modeling take natural values that take into account the influence of external factors on the components parameters of the circuit. Visual images of the design and electronic components of the OES with the color fields of temperature distribution, deformations or mechanical accelerations obtained by virtual modeling superimposed on them make it possible to identify at the early stages of design the most tense and therefore dangerous places in the sense of possible overloads. Keywords: Virtual model, Onboard electronic means, Devices and systems, Design, Physical processes, Computer simulation. Contacts: E-mail: yurykofanov@yandex.ru Pp. 16-22.