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In most engineering practice, widespread in isolation, it is with our lives, on the national economy, people's lives have played a very important role. Join in the transmission path isolation device that can reduce the impact of vibration source for mechanical systems, to ensure the livelihood of the people has played a positive role. This paper summarizes previous design experience for the isolator, based on the design and experimental validation of a new nonlinear isolator, the isolator has good versatility and good isolation effect. Specifically, the main research results and conclusions are as follows: 1, the analysis of thin-walled beams inclined structure in the vertical direction buckling under the force characteristics by two diagonal arrangement of thin-walled beams with parallel vertical spring structure, In the equilibrium position, with the capacity changes, shift changes and the capacity of the more significant changes little. 2, analysis of the device under harmonic excitation by the dynamic characteristics, namely the working range with a smaller dynamic stiffness. With the linear system (vertical spring structure), it was found that the device has a lower resonant frequency, and thus a greater range of isolation. The system also has a smaller displacement transfer rate, can be effectively isolated from the ground, such as the vibration of the base, so as to achieve the purpose of protecting bearer. 3, through the system dynamics model, combined statics results derived kinetic equations system. Since the structure of thin-walled beam buckling characteristics, making parallel structure characteristics have changed, the vibration can be used Duffing equation. By the harmonic balance method to get the approximate solution of the system, obtained with the Runge-Kutta method of numerical solution of the system is analyzed possible bifurcation, system stability and the emergence of the jumping phenomenon. 4, the design of the isolator validation prototype, the prototype has adjustable by moving the chute of the support plate to adjust the distance in the horizontal direction, the vertical direction adjustment knob to adjust the vertical direction distance, you can expand the carrying capacity of the prototype, the prototype has the versatility. 5, the vibration table test of a linear system and the acceleration of the isolator transmissibility, the experimental results agree with the theoretical analysis. The experiment results, the anti-vibration device can reduce the natural frequency, thereby expanding the range of vibration.
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