تحلیل ارتعاشی یک مکانیزم پایدارساز ارتعاشی با سختی شبه صفر و ارزیابی پارامترهای آن

The issue of isolating the vibrations caused by base excitation has always been one of the challenges faced by designers and manufacturers in the industry. Various methods have been used to isolate the system and sensitive equipment from the base vibrations. Although the use of active methods is associated with high accuracy; But due to the need to use complex electronic equipment, sensors, actuators and high maintenance and repair costs, it is not economically viable. On the other hand, the use of passive methods such as linear isolators that do not require electronic equipment do not have the desired function due to the limitation of operation in a specific frequency range and the lack of effective isolation at frequencies far from the design frequency. In this article, a passive vibration isolator system of quasi-zero stiffness type is introduced. The analysis of the forces acting on the members of this system has been investigated, the relations of these forces have been extracted and the relationship of quasi-zero stiffness in the range of motion of the system has been obtained.