Research Information System
JVC/JOURNAL OF VIBRATION AND CONTROL, vol.28, pp.1-17, 2022 (SCI-Expanded)
The surface mechanical attrition treatment creates a
nano-crystal layer with improved mechanical properties without changing the
surface chemistry. Vibration produces residual stresses in a layer close to the
surface by successive impacts on the material surface. Vibration treatments
represent a 'green' alternative to surface treatments without the use of
chemicals and high temperatures. Depending on the operating frequency and
amplitude of a particular vibration platform, the most decisive parameter to be
controlled for the efficiency of the application is the velocity. Vibration
platforms in the SMAT process are ultrasonic and mechanically based platforms.
This work presents a vibration platform where velocity is below 1 m/s, which is
the lowest operating speed defined in the SMAT process. This work includes both
analytical and numerical solutions to the natural frequency values of the
vibrating table. The operating conditions were determined by finding the
natural frequency values. The amplitude, velocity, and acceleration relations
of the vibration table that will occur during the process were found using the
frequency response analysis method. ANSYS and MATLAB were used for numerical
and analytical solutions, respectively. Numerical and analytical results were
in agreement with the experimental modal analysis.