Poređenje odziva piezoelektričnih i induktivnih davača ubrzanja na mehaničke udare i postprocesno dobijanje pomeranja / The comparison of the response of piezoelectric and inductive acceleration gauges on mechanical impacts and the postprocesual obtaining of displacement

Abstract

U ovom radu razmatrano je merenje ubrzanja nastalih usled mehaničkih udara i post-procesno izračunavanje pomaka. Rezultati i zapažanja iz realnih opita eksperimentalno su provereni na etalonskim mašinama za vibracije i potrese. Na osnovu upoređenja zaključeno je daje za merenje ubrzanja (na konstrukciji borbenog vozila) usled mehaničkih udara bolje koristiti induktivne davače i da izračunavanje pomaka iz izrazito aperiodičnih signala ubrzanja nije relevantno. / This paper presents measuring the acceleration of mechanical impacts and the postprocesual calculating of displacement. The results and observations of the tests have been evaluated on machines for vibrations and quakes. The following conclusions were drawn out of comparisons: it is better to use inductive transducers for the acceleration measurement of combat vehicles chassis because of mechanical impacts; the displacement calculation from high aperiodical acceleration signals is not relevant.

Keywords

• merenja
• mehanički udari
• ubrzanje
• pomeranje
• measurements
• mechanical impacts
• acceleration
• displacement