Dynamic analyses of heavy vehicle with pitch-interconnected suspensions

Cao, Dongpu; Rakheja, Subhash; Su, Chun‐Yi

doi:10.1504/ijhvs.2008.022246

Cited by 23 publications

(12 citation statements)

References 18 publications

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“…A few recent studies explore the potential benefits of pitch-interconnected suspension systems with higher pitch stiffness, using a developed nonlinear pitch-plane vehicle braking model [85,86]. The performance benefits of the pitch-connected hydro-pneumatic suspensions are demonstrated in enhancing the pitch attitude control, suspension travel, straight-line braking performance, and vertical ride.…”

Section: Pitch-plane Vehicle/suspension Dynamics and Passive Suspensimentioning

confidence: 99%

Editors’ perspectives: road vehicle suspension design, dynamics, and control

Cao

Song

Ahmadian

2011

Vehicle System Dynamics

308

151

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This paper provides an overview of the latest advances in road vehicle suspension design, dynamics, and control, together with the authors' perspectives, in the context of vehicle ride, handling and stability. The general aspects of road vehicle suspension dynamics and design are discussed, followed by descriptions of road roughness excitations with a particular emphasis on road potholes. Passive suspension system designs and their effects on road vehicle dynamics and stability are presented in terms of in-plane and full-vehicle arrangements. Controlled suspensions are also reviewed and discussed. The paper concludes with some potential research topics, in particular those associated with development of hybrid and electric vehicles.

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Section: Pitch-plane Vehicle/suspension Dynamics and Passive Suspensimentioning

confidence: 99%

Editors’ perspectives: road vehicle suspension design, dynamics, and control

Cao

Song

Ahmadian

2011

Vehicle System Dynamics

308

151

View full text Add to dashboard Cite

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“…The constant braking torque with a transient response in the absence of brake fade, therefore, has been generally utilised to provide a first-order approximation [28][29][30][31]. A novel braking torque model was proposed in an attempt to account for the brake fade effect [32]:…”

Section: Methods Of Analysismentioning

confidence: 99%

Roll- and pitch-plane-coupled hydro-pneumatic suspension. Part 2: dynamic response analyses

Cao

Rakheja

2010

Vehicle System Dynamics

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In the first part of this study, the potential performance benefits of fluidically coupled passive suspensions were demonstrated through analyses of suspension properties, design flexibility and feasibility. In this second part of the study, the dynamic responses of a vehicle equipped with different configurations of fluidically coupled hydro-pneumatic suspension systems are investigated for more comprehensive assessments of the coupled suspension concepts. A generalised 14 degree-of-freedom nonlinear vehicle model is developed and validated to evaluate vehicle ride and handling dynamic responses and suspension anti-roll and anti-pitch characteristics under various road excitations and steering/braking manoeuvres. The dynamic responses of the vehicle model with the coupled suspension are compared with those of the unconnected suspensions to demonstrate the performance potential of the fluidic couplings. The dynamic responses together with the suspension properties suggest that the full-vehicle-coupled hydro-pneumatic suspension could offer considerable potential in realising enhanced ride and handling performance, as well as improved anti-roll and anti-pitch properties in a very flexible and energy-saving manner.

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“…e instrument used for the vibration test of the chassis frame was still the DH5902 vibration test and analysis system. Considering the accelerometer has a large frequency response range and high sensitivity, it is suitable for the collection of test signals of the combine harvester [31,32].…”

Section: Time-domain Response Test Of the Chassis Frame Of The Combinmentioning

confidence: 99%

Vibration Response of Combine Harvester Chassis Undergoing Multisource Excitation Force Distribution

Tang

Ren

et al. 2021

Mathematical Problems in Engineering

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When a combine harvester is harvesting in field under complicated conditions, vibration characteristics of the chassis frame under the excitation of multiple sources are complex and changeable. In order to analyze the vibration characteristics of the chassis frame of the combine harvester under complex working conditions and multisource excitation, this paper carried out three-dimensional modeling and static calculation of the chassis frame of the combine harvester. On this basis, the experimental modal analysis was carried out on the designed chassis frame, and finally, the vibration response under multiple excitations and complex working conditions was tested and analyzed in the field. Results showed that when the combine harvester was fully loaded, the maximum bending moment was at the load-bearing beam under the grain box. The maximum bending moment was 2298.08 N/m, and it was located at the cross section of the left end of the bearing beam at 1.61 m. When the components of the whole machine were working, the vibration of the chassis frame at the rear right was the most intense. The horizontal vibration of the threshing drum, the reciprocating motion generated by the vibrating screen, and the vertical vibration generated by the engine were the main vibration sources of the combine harvester in the three directions of X, Y, and Z. With the i\ncrease of engine speed, the excitation capacity of each working component connected to the engine on the whole machine increased. The results of this paper provide experimental basis for the research on the vibration characteristics of the chassis frame of the rice combine harvester under multisource excitation and also provide a reference for the further improvement of the chassis frame of the combine harvester.

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Dynamic analyses of heavy vehicle with pitch-interconnected suspensions

Cited by 23 publications

References 18 publications

Editors’ perspectives: road vehicle suspension design, dynamics, and control

Editors’ perspectives: road vehicle suspension design, dynamics, and control

Roll- and pitch-plane-coupled hydro-pneumatic suspension. Part 2: dynamic response analyses

Vibration Response of Combine Harvester Chassis Undergoing Multisource Excitation Force Distribution

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