Investigating the theoretical-experimental vibrational behavior of the rectangular microbeam of the atomic force microscope by considering five macropolymer samples

In this research, the vibrational behavior of the rectangular microbeam of the atomic force microscope has been investigated by considering ۵ different types of polymers as soft samples. Considering the importance of the subject and their application in the industry, it seems necessary to conduct independent research on the mechanical and vibrational behavior of macro polymers. After making macropolymers, their elastic modulus and adhesion force have been obtained for both penetration and return modes of the microscope. To investigate the mechanical properties of macropolymers, GPK atomic force microscope model Nanowizard ۲ along with its specialized software with version ۰.۵.۹۶ was used. The Timoshenko beam model has been used to investigate the vibrational behavior of the microbeam.In this research, for the first time, the elastic modulus was determined using an atomic force microscope, and then the vibration behavior of the rectangular microbeam of the atomic force microscope was determined with regard to polymers as soft samples using the finite element method and using the DMT collision theory and also the experimental method. has been investigated.The results show that with the increase of the elastic modulus, the intensity frequency pattern and the frequency response size increase in the direction of vertical displacement. Finally, the numerical modeling results have been compared with the experimental results, which show a good convergence between them.

کلیدواژه ها:

Atomic Force Microscope ، Rectangular Beam ، Timoshenko beam ، Elastic modulus