Method for Reproducing Shock Acceleration in Mechanical Testing

Popov, Arkadii N.; Polishchuck, Mikhail N.; Vasiliev, Alexey K.

doi:10.15866/ireme.v14i2.18204

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hysteresis of this characteristic can be explained by the internal friction in the material of the shaper and the friction in the guides during shock and rebound. Based on the model presented in [14], the obtained dependence can be used to refine the output parameters of the experiment. Thus, the simulated shock pulses, considering the nonlinearity of the elastic force characteristic, are shown in Figure 5.…”

Section: Fig 2 Comparison Of Experimental and Theoretical Parameters Of Acceleration Pulsesmentioning

confidence: 99%

“…Dependence of the elastic force F on the deformation of the shaper x On the basis of the conducted experiments, the dependence of the elastic force on the deformation for the studied shaper was determined (the diameter of the shaper is 152 mm; the shaper height is 25 mm; the dynamic force rating of the shaper is 45300 kgf): F = 2•10 17 •x 4 -2•10 12 •x 3 -7•10 10 •x 2 -9•10 6 •x + 3138.The hysteresis of this characteristic can be explained by the internal friction in the material of the shaper and the friction in the guides during shock and rebound. Based on the model presented in[14], the obtained dependence can be used to refine the output parameters of the experiment. Thus, the simulated shock pulses, considering the nonlinearity of the elastic force characteristic, are shown in Figure5.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Influence of the shaper parameters on the characteristics of acceleration pulses reproduced by mechatronic shock machines

2021

View full text Add to dashboard Cite

In this paper the influence of the shaper parameters on the characteristics of acceleration pulses (peak value and duration) reproduced on mechatronic shock machines is analyzed. A comparison of the acceleration pulses obtained experimentally and by computational methods is presented. Recommendations for clarifying the requirements for methodological calculations of pulse parameters are given. The dependence of the elastic force of the shock pulse shaper on its deformation is presented. The influence of this characteristic on the peak value and duration of the acceleration pulse is estimated. The influence of the height of the shaper on the parameters of the acceleration pulses is analyzed. The concept of a device that allows you to automatically change the height of the shaper to obtain a wider range of acceleration pulses is presented. The interaction of the shock table with the shaper by means of computer modeling is modelled. Conclusions about the dependences of the duration and peak value of the acceleration pulses on the parameters of the shaper (stiffness and height) are drawn. Recommendations for selecting the parameters of the shaper to obtain acceleration pulses with the desired parameters are given.

show abstract

Section: Fig 2 Comparison Of Experimental and Theoretical Parameters Of Acceleration Pulsesmentioning

confidence: 99%

mentioning

confidence: 99%