Geomechatronics – Interaction between ground and construction machinery and its application to construction robotics

Tateyama, Kazuyoshi; Ashida, Shigeki; Fukagawa, Ryoichi; Takahashi, Hiroshi

doi:10.1016/j.jterra.2005.05.008

Cited by 8 publications

(6 citation statements)

References 3 publications

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“…Under the influence of the off-road terrains and the vibration excitations of the vibratory drum when the off-road vibratory roller was traveling and compacting on the deformable terrains, the ride comfort of the vehicle was remarkably affected. [1][2][3][4][5][6][7] Especially, the vertical vibration of the driver's seat and the cab's pitching angle were very high. 4,7 This was due to the driver's seat suspension and the cab's isolation system of the off-road vibratory roller was equipped with the traditional seat suspension and the cab's rubber mount with their very low isolation efficiency.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the ride comfort of off-road vibratory rollers with seat suspension using optimal quasi-zero stiffness

Jiao

Nguyen

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The research proposes a new design of the seat suspension equipped with the quasi-zero stiffness (QZS) and hydraulic mount (HM) of the cab isolation system to improve the ride comfort of off-road vibratory rollers. To assess the ride comfort of the vehicle using the QZS and the HM, a dynamic model of the off-road vibratory roller is built and researched under various interactions of the drum/wheel and off-road terrain. Based on the multi-objective genetic algorithms, the design parameters of the QZS are also optimized to further enhance the vehicle’s ride comfort. The QZS optimized (QZSO)’s efficiency and the ride comfort of the off-road vibratory roller are analyzed based on the indexes of the seat displacement and acceleration; and the cab’s pitching and rolling acceleration. The experimental investigation is then carried out to verify the accuracy of the mathematical model and research result. The investigation result indicates that with the QZSO applied on the seat isolation, the Root-Mean-Square and Power-Spectral-Density of the acceleration responses of the seat and cab are greatly decreased compared to the seat isolation without the QZS in both the time and frequency regions. Particularly, the Root-Mean-Square acceleration of the seat is remarkably decreased by 61.7% when the vehicle is moving and 67.5% when the vehicle is working. Consequently, this research can provide a valuable reference and knowledge for the application of the QZSO on the driver’s seat suspension of off-road vehicles to optimize ride comfort.

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Section: Introductionmentioning

confidence: 99%

Enhancing the ride comfort of off-road vibratory rollers with seat suspension using optimal quasi-zero stiffness

Jiao

Nguyen

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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show abstract

“…In order to reduce the effect of vibration on the operator, identification, and elimination of vibration sources generated in working conditions were the most important tasks for the designers. Therefore, 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]. Therefore, the performance of the compression and the ride comfort of the vibratory rollers were strongly studied and improved in recent years [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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

Nguyen¹,

Le²

2020

Math. models, eng.

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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.

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“…There is a combination of the static force of the vehicle and the dynamic force of the vibratory drum yielded by an eccentric mass rotating around the drum axis to compact soil, asphalt, and other materials in its work process [1][2][3]. Therefore, the vibration dynamics of the vehicle are generated from two main sources: One is the wheels interacting the deformable terrain when the vehicle travels and the other is interactions between the drum/tyres and the elastoplastic terrain when the vehicle compacts the soil ground [3,4]. Basic researches of the tyre-soft soil interaction models, which were proposed by Bekker and Wong [5,6], had been applied for researching the effect of soil deformation on off-road vehicle ride responses [4,7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the vibration dynamics of the vehicle are generated from two main sources: One is the wheels interacting the deformable terrain when the vehicle travels and the other is interactions between the drum/tyres and the elastoplastic terrain when the vehicle compacts the soil ground [3,4]. Basic researches of the tyre-soft soil interaction models, which were proposed by Bekker and Wong [5,6], had been applied for researching the effect of soil deformation on off-road vehicle ride responses [4,7,8]. Besides, based on the theoretical approach of AS 2 TM, a model of elastic tyre-soil interaction was proposed to investigate the tyre dynamic behaviours on various soil deformations [9].…”

Section: Introductionmentioning

confidence: 99%

Vibration Analysis and Modeling of an Off‐Road Vibratory Roller Equipped with Three Different Cab’s Isolation Mounts

Nguyen

Zhang

et al. 2018

Shock and Vibration

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This study proposes a dynamic model of the vibratory roller interacting with the off-road deformed terrain to analyze the lowfrequency performance of three different cab's isolation mounts under the different operating conditions. In order to evaluate the ride comfort of the vibratory roller with the different cab's isolation mounts, a three-dimensional nonlinear dynamic model is established. The power spectral density (PSD) and the weighted root mean square (RMS) of acceleration responses of the vertical driver's seat, cab's pitch, and roll vibrations are chosen as objective functions in the low-frequency range. Contrastive analysis of low-frequency vibration characteristics of the vibratory roller with the traditional rubber mounts, the hydraulic mounts, and the pneumatic mounts is carried out. Experimental investigations are also used to verify the accuracy of models. The research results show that the hydraulic mounts have an obvious effect on mitigating the cab vibration and improving the ride comfort in comparison with the traditional rubber mounts and the pneumatic mounts.

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Geomechatronics – Interaction between ground and construction machinery and its application to construction robotics

Cited by 8 publications

References 3 publications

Enhancing the ride comfort of off-road vibratory rollers with seat suspension using optimal quasi-zero stiffness

Enhancing the ride comfort of off-road vibratory rollers with seat suspension using optimal quasi-zero stiffness

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

Vibration Analysis and Modeling of an Off‐Road Vibratory Roller Equipped with Three Different Cab’s Isolation Mounts

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