Use of the Belleville spring package in the vibration protection mechanism of the operator’s seat

Abstract Reducing the vibration effects on operator of a construction, road and other machines is relevant objective, since its accomplishing improves efficiency accuracy work performed by reduces risk operators’ occupational diseases. Vibration protection systems with effect quasi-zero stiffness are promising. To produce this effect, Belleville springs packages can be used. They way to create simple, reliable inexpensive passive mechanism system operator’s seat. The influence static characteristic center slope two maximum acceleration load under sinusoidal kinematic excitation seat base movements investigated. spring was characterized coefficient that affects type according known analytical expressions for separate force. obtain chair values in fixed coordinate system, we used simulation mathematical model developed Simscape Multibody package modeling mechanical MATLAB system. blocks sliding joint rigid body forming chain. defined during predetermined period time at end transition process steady state oscillations. When conducting computational experiment, specified oscillations amplitude angular frequency these varied. For proper comparison experimental results form graphical dependencies frequency, ranges acceptable unacceptable arguments combinations were selected packages. considered when deformation went beyond maximum. springs, regions different, therefore their intersection comparative analysis, obtained. relatively high found out generally provide better entire range arguments. Simultaneously, lower dampens vibrations small amplitudes area, i.e. operating area.