Review Research on Isolation Systems of the Cab and Driver’s Seat in
                    Soil Compactors

Zhang, Li; Nguyen, Vanliem; Wang, Chunxia; Shu, Xu; Li, Haitao

doi:10.4271/10-07-02-0008

Cited by 9 publications

(6 citation statements)

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“…[1][2][3][4][5] For further enhancing comfort in the vehicle, the operation parameters of the AIS were then optimized and applied on vehicles. [6][7][8][9] The research results showed that with the vehicles using the AIS, both road friendliness and comfort in vehicles were ameliorated under different operating conditions, especially under the vibration excitations lower than 10.0 Hz. 6,10 With the AIS equipped on the vehicles, its structure was designed by the airbag chamber, the auxiliary chamber, and the pipe.…”

Section: Introductionmentioning

confidence: 94%

“…Thus, to simulate and analyze the vibration in vehicle's dynamic models, random road surface has been chosen to establish an excitation function q j of the wheels in the vector of Q(t). According to ISO 8068 27 and calculated results in existing studies, 4,6,9,28,29 the random road surface at the wheels of vehicles was expressed as:…”

Section: Dynamic Model Of Vehicles Using Aismentioning

confidence: 99%

“…With ride quality index: Vehicle's root-mean-square (RMS) acceleration was applied to evaluate the vehicle ride quality. 9,29,32,[35][36][37] According to ISO 2631-1, 32 the expression of the RMS acceleration of the vehicle dynamic models in Fig. 7 was expressed as:…”

Section: Evaluation Criteriamentioning

confidence: 99%

See 2 more Smart Citations

Assessing the Efficiency of the Air Isolation System Based on the Mathematical Models

Zhou,

Xu,

Nguyen

et al. 2024

The International Journal of Acoustics and Vibration

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Two calculation methods of the lumped parameter model (LPM) and mass flow ratio (MFR) used to establish dynamics models of air isolation system (AIS) in vehicles are widely applied. However, the efficiency and application range of the LPM and MFR for the AIS of the vehicles have not been explained in detail. To clarify this issue, the numerical simulation and experiment of the AIS performed under the harmonic excitation are given to evaluate the accuracy of the LPM and MFR. The two-axle automobiles and multi-axle heavy trucks equipped with the AIS are also simulated to evaluate the efficiency of the AIS with the LPM and MFR in improving ride comfort and road friendliness. The study shows that with the single model of the AIS, measured and simulated result in AIS's force response, force-deformation characteristic, and dynamics stiffness-frequency characteristic with LPM and MFR are similar. Therefore, both methods could be applied to establish the dynamic model of the AIS. However, by applying the AIS on the two-axle and multi-axle vehicles, the MFR improves road-friendliness and comfort in two-axle automobiles better than the LPM, conversely, the LPM improves road-friendliness and comfort in multi-axle trucks better than that the MFR. Therefore, to more accurately assess the isolation efficiency of the AIS in improving road-friendliness and comfort in vehicle, the MFR should be applied to the AIS using the pipe designed by the parallel pipes or long pipes of two-axle vehicles whereas the LPM should be applied to the AIS using the pipe designed by the complex pipes of multi-axle vehicles.

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Section: Introductionmentioning

confidence: 94%

Section: Dynamic Model Of Vehicles Using Aismentioning

confidence: 99%

See 1 more Smart Citation

Assessing the Efficiency of the Air Isolation System Based on the Mathematical Models

Zhou,

Xu,

Nguyen

et al. 2024

The International Journal of Acoustics and Vibration

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“…[1][2][3][4] Wang et al 5 compared the influence of sound and vibration on ride comfort of electric vehicles and combustion engine vehicles through experiments, providing theoretical guidance for the research and development of ride comfort of electric vehicles. Xiu et al 6 and Zhang et al 7 both proposed to use a seat suspension model with negative stiffness structure to improve riding comfort, the results show that using a negative stiffness structure model with air spring can better improve the driver's riding comfort. At the same time, in the aspect of automobile suspension research, Shen et al 8 established the dynamic model of automotive mechatronic ISD (inerter-spring-damper) suspension by using fractional differential method, and verified the effectiveness of the model, which enriched the dynamic characteristics modeling methods in other fields of vibration isolation.…”

Section: Introductionmentioning

confidence: 99%

Research on dynamic characteristic of compressor RIP under thermal oxygen aging and variable preload conditions

Chen

Gan

et al. 2023

Advances in Mechanical Engineering

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The dynamic characteristics of rubber isolation pad (abbreviated as RIP) after service under the high temperature thermal oxygen aging and the variable preloads have preload dependence and thermal oxygen aging dependence, which is a crucial problem for matching the vibration isolation system of air conditioner compressor to reveal the dynamic characteristic mechanism of the RIP with different preloads and thermal oxygen aging conditions. The Peck model is first introduced to characterize the thermal oxygen aging factor, the fractional derivative Kelvin-Voigt thermal oxygen aging-perturbation model (FDKVTPM) and the Coulomb frictional thermal oxygen aging-perturbation model (CFTPM) are established to describe the frequency dependence and the amplitude dependence, respectively. The thermal oxygen aging-dynamic characteristic model of the RIP is built by considering the influence of variable preloads, the model parameters under different preloads are further identified, the validity of the model was examined by the experimental data. The concepts of the stiffness transition point (STP) and the stiffness transition frequency (STF) are innovatively proposed to better describe softening effect of the RIP under variable preload and variable amplitude working conditions. The results show that the static stiffness of RIP increases by 20.7%, the dynamic stiffness increases by 9.3%, and the loss factor decreases by 35% after thermal oxygen aging under different preload conditions, which can lay a theoretical foundation for in-depth study of the stiffness matching and optimization of air conditioner compressor with the RIP.

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“…To improve the driver's ride quality, the suspension systems of the vehicle and cab were optimized and controlled [1][2][3][4]. However, the structure of the semi-active or active suspension systems was very complicated and expensive.…”

Section: Introductionmentioning

confidence: 99%

A new design of seat suspension using different models of negative stiffness structure

Yuan,

Li,

2023

Vib. proced.

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Three models of seat suspension using the negative stiffness structure including steel springs (SS), roller springs (RS), and tuned mass damper (TMD) are proposed and studied to improve the driver's seat ride comfort. Based on the dynamic models of the SS, RS, and TMD, their isolation efficiency and driver’s ride comfort are evaluated via two indexes of the root mean square displacement and acceleration of the seat (zws and aws) under two excitations of the random road surface and bumpy road surface. The results show that under the random road surface, the zws and aws with the seat's RS are reduced by 10.31 % and 20.32 % in comparison with the seat’s SS; whereas the zws and aws with the seat's TMD are smaller than that of the seat's RS by 19.15 % and 26.13 %; and the seat’s SS by 27.49 % and 41.15 %, respectively. Besides, the seat's displacement and acceleration responses with the seat’s TMD are also lower than that of both the SS and RS under the bumpy road surface. Therefore, the structure of the TMD should be designed and added to the seat suspension to enhance the driver’s seat ride comfort.

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Review Research on Isolation Systems of the Cab and Driver’s Seat in Soil Compactors

Cited by 9 publications

References 0 publications

Assessing the Efficiency of the Air Isolation System Based on the Mathematical Models

Assessing the Efficiency of the Air Isolation System Based on the Mathematical Models

Research on dynamic characteristic of compressor RIP under thermal oxygen aging and variable preload conditions

A new design of seat suspension using different models of negative stiffness structure

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