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Analysis And Design Of Damping System Of Road Roller

Posted on:2014-11-18Degree:MasterType:Thesis
Country:ChinaCandidate:W J ChenFull Text:PDF
GTID:2252330425997039Subject:Mechanical engineering
Abstract/Summary:PDF Full Text Request
Vibration roller because of its high efficiency vibration efficiency and applicability have been widely applied in various compaction environment. Currently,the production and sales of vibratory roller occupy a dominant position in china. The quality of working performance of vibratory roller is getting more and more attention.Especially the vibration of the vibration strength of driver comfort is especially important. The vibratory roller damping performance has been the attention of national experts,But because of roller industry anti exhibition is also on the upswing, many theoretical system is not yet mature, so there is a huge gap resulting in China and the international at roller damping performance.How to improve the damping performance of road roller, improve the roller work stability, it has realistic significance to the study of vibration isolation system of road roller.Design for vibrating element is calculated, and the at roller to the specific model, calibrated the vibration shaft stiffness life to determine the vibration shaft minimum diameter. Than get off quality on the at roller amplitude selector values and the overall stiffness of the vibration frequency range of vibratory roller compaction important the damping performance parameters and key technologies wheel vibration study of the structure. Establish the two degree of freedom model, the theoretical analysis of the the at roller damper stiffness. Provide adequate preparation programs and the theoretical basis of the research work of the road roller damper.Damping system of road roller is the most important parts of the the vibratory compactor damping system design, it is the body of the connection between the vibrating element and the vibrating mechanism. Election principle clear the shock absorber, rubber shock absorber as research goals. Analysis of the characteristics of rubber, the proposed design considerations. For the rubber elements of static elastic shear modulus, static modulus of elasticity, and the apparent elastic modulus and dynamic modulus of elasticity to be calculated. The calculation of the stiffness of the rubber damping blocks, shock absorber center coincides with the Z-axis, symmetrical distribution in X, Y on both sides, thus damping stiffness of the damping system.Using MatLab/Simulink simulation set up five degrees of freedom model about damping system of road roller, come at roller wheel vibration displacement before and after, the cab simulation curve changes over time, as well as acceleration and vibration parameters, and in accordance with the curve draw relevant conclusions.At roller foreign brands in the country in recent years by analyzing accounting rate and different ton at roller market share, looking for domestic and international product quality, reliability, noise gaps. Summary of the increasingly competitive market, the management model, personnel training, diversified sales network to offer constructive ideas, modes of production, after the market development.
Keywords/Search Tags:vibratory roller, damping properties, rubber damper, simulation
PDF Full Text Request
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