Development of cab isolation systems of off-road vibratory rollers: review research

Vanliem Nguyen,Vanquynh Le

doi:10.21595/mme.2020.21241

Abstract

To have an overview of the research and development processes of the cab isolation system of the off-road vibratory rollers, this paper represents the researches of the various isolation systems based on the previously studied and published results. The result has shown that the ride comfort is mainly improved by the cab isolation system used the semi-active hydraulic mounts. The paper results can provide the overall view of the vibration studies of the off-road vibratory rollers.

Highlights

Since the production of the first commercial vibratory roller about 50 year ago, due to the trade competition, in recent years, the vibratory roller market had required increasingly working capacity and enhancing the driver’s ride comfort
The research results showed that the low-frequency and high-stiffness characteristics of the hydraulic mounts (HM) had a good effect on isolating low-frequency vibration transmitted and controlling the cab shaking of the off-road vibratory roller, and the characteristics of the pneumatic mounts (PM) had the same results in comparison with the HM
The research of the cab isolation system for the vibratory rollers to enhance the ride comfort has been constantly evolving in recent years

Summary

Introduction

Since the production of the first commercial vibratory roller about 50 year ago, due to the trade competition, in recent years, the vibratory roller market had required increasingly working capacity and enhancing the driver’s ride comfort. The goal main of the designers is to enhance the vibratory drum’s force to reach maximum excitation result of the drum on the elasto-plastic [1,2,3,4], while reducing these vibration excitations transmitted to operator through the cab’s vibration isolation system and the seat’s suspension [5]. In the vibration of the vibratory rollers, the excitation vibration sources yielded from the off-road terrains were mostly transmitted to the operator through cab and seat’s isolation systems [3, 10, 11]. The research and improvement of the cab isolation system of the vibratory rollers to enhance the ride comfort were especially concerned [14]. Based on the previously researched and published results of the ride comfort of the off-road vibratory rollers and the performance of the cab isolation system, this paper presents a summary of the research results of the isolation system of the vibratory roller cab and its structure in the improvement process

Research of the vibration excitation sources

Traditional rubber mounts for the cab

Improvement the rubber mounts for the cab

Hydraulic mounts for the cab isolation system

Semi-active hydraulic mount for the cab

Conclusions