Optimisation of Roll Vibration Damping of a Vehicle

Pieper, Alexander; Le, Khanh Chau; Kälberer, Jürgen

doi:10.1365/s40112-015-0854-4

Cited by 3 publications

(4 citation statements)

References 1 publication

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“…As the second derivatives are negative, function F achieves its maximum at (24) in all three cases. These optimally chosen parameters enable the springs to act against the pure heave and roll modes of vibration of the beam separately, avoiding the energy transfer between different modes of vibrations.…”

Section: Application To Conservative Oscillatorsmentioning

confidence: 93%

“…Note, however, that the fixing of special configuration of springs and dampers often exhibits some deficiency in damping of roll vibrations of conventional vehicle suspensions as shown by Le and Pieper [21] in an analysis of forced vibration using a half-car model. The first step in modifying this design concept of suspension by introducing a smart mechanism that adapts the installation ratios of both springs and dampers to different modes of vibrations in equal way has been proposed by Pieper et al [24]. Nowadays, especially in tuning of vehicle suspension elements, a huge effort is spend on lap time simulations using different numerical packages [19].…”

Section: Introductionmentioning

confidence: 99%

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Optimal parameters uncoupling vibration modes of oscillators

Pieper

2017

Journal of Sound and Vibration

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A novel optimization concept for an oscillator with two degrees of freedom is proposed. By using specially defined motion ratios, we control the action of springs and dampers to each degree of freedom of the oscillator. If the potential action of the springs in one period of vibration, used as the payoff function for the conservative oscillator, is maximized, then the optimal motion ratios uncouple vibration modes. The same result holds true for the dissipative oscillator. The application to optimal design of vehicle suspension is discussed.

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Section: Application To Conservative Oscillatorsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Optimal parameters uncoupling vibration modes of oscillators

Pieper

2017

Journal of Sound and Vibration

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“…Another reason is that the natural frequency of the cab itself is consistent with the excitation frequency, resulting in resonance. (4) Shock absorbers for vehicles due to manufacturing quality inconsistencies [27] cause the component fail to meet the technical requirements of providing sufficient damping during resonance [28], thereby reducing the resonance amplitude of the system. e damping force of the shock absorber of the front axle is not large enough [29]; when the front axle resonates, the amplitude of the resonance cannot be attenuated to the design level; the shock absorbers of the engine and the cab are unable to provide sufficient damping because of inconsistent manufacturing quality.…”

Section: Why Damping Shock Absorbers Don't Work Well?mentioning

confidence: 99%

Research on Improvement of Truck Vibration Based on Systematic G8D Method

Guo

Chen

Zhang

et al. 2019

Shock and Vibration

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In view of the common and difficult to solve vehicle vibration problem, taking a large truck manufacturing enterprise in China as an example, an improved model for solving truck vibration problem is established by using the G8D method, and the unbalanced excitation force of the wheel system is analysed. The coupling of the excitation frequency and the natural frequency of the system leads to the resonance phenomenon, as well as the inadequate damping function of the system, is the fundamental cause of the vibration problem. After verifying and implementing permanent correction measures at the same time at the three levels of components, devices, and the entire vehicle, the acceleration of the seat guide rails for the vibration performance of the truck reduces from the original state 1.04 m/s2 to 0.6 m/s2, a decrease of 42.3%, which reaches the best level of mainstream cars in the country and is close to the optimal level of 0.5 m/s2 among the same kinds of cars in Germany. Therefore, the improved model can improve the sustainability of product manufacturing, provide industry guidance for solving the quality problem of truck vibration, and provide a sustainable guarantee for social public transport safety.

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“…Prakash R, et al [13] used a hybrid genetic particle swarm optimization algorithm (HGPSO) to solve the MPC objective function of vehicle stability. Pieper A, et al [14] used the analytical method for the vibration of vehicles, revealed the shortcomings of traditional independent suspension in rolling vibration reduction, and eliminated the defects of rolling vibration damping through an intelligent control mechanism. Zhao J Z, et al [15] designed an anti-overturning system for vehicles with a dynamic simulation model and analyzed the control performance of the system under different conditions.…”

Section: Introductionmentioning

confidence: 99%

Anti-Overturning Capability and Fuzzy PID Speed Control for Four-Way Shuttle Vehicles in Processed Grain Storage

Zhang

et al. 2023

Processes

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As the four-way shuttle vehicle is prone to overturning in finished grain storage during acceleration and deceleration, an overturning mechanical model is constructed. The design factors analyzed include grain bag height, vehicle and grain bag mass, and the type of grain’s effect on the vehicle’s anti-overturning stability. The critical overturning condition of the shuttle vehicle during operation is also determined as a result of this analysis. With the critical overturning condition, the speed control of the shuttle vehicle based on the fuzzy PID method is carried out to improve the anti-overturning stability. Significant details are made about the fuzzification of input and output variables, determination of membership function, establishment of the fuzzy rule base, fuzzy reasoning, and defuzzification. Finally, the comparative simulation model of fuzzy PID and conventional PID in the MATLAB/Simulink platform showed that the fuzzy PID control method had the advantages of fast convergence and quick response to the speed control of the four-way shuttle vehicle.

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Optimisation of Roll Vibration Damping of a Vehicle

Cited by 3 publications

References 1 publication

Optimal parameters uncoupling vibration modes of oscillators

Optimal parameters uncoupling vibration modes of oscillators

Research on Improvement of Truck Vibration Based on Systematic G8D Method

Anti-Overturning Capability and Fuzzy PID Speed Control for Four-Way Shuttle Vehicles in Processed Grain Storage

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