Study on kinematic and compliance test of suspension

Jing, Lixin; Wu, Liguang; Li, Xuepeng; Yu, Zhang

doi:10.1088/1757-899x/231/1/012186

Cited by 6 publications

(5 citation statements)

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“…K&C analyzes can be specified as leading analyses evaluated for vehicle dynamics, comfort, and handling. In physical test bench, the examination is performed with the help of an activator that moves the wheel or applies force according to the analysis type and with a test device that records the angles, positions, and kinematic suspension movements of the wheel [16]. While performing these analyzes, the goal is to finalize the design variables with a loop of process that is managed by aligning with all the vehicle subsystems affected by suspension geometry.…”

Section: Kandc Model and Validationmentioning

confidence: 99%

Kinematics & Compliance Validation of a Vehicle Suspension and Steering Kinematics Optimization Using Neural Networks

AĞAKİŞİ,

ÖZTÜRK

2023

mech

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Physical and virtual K&C analyses are performed to achieve the vehicle dynamics targets by finding the optimum variables such as the position of hardpoints or stiffnesses of bushings. However, finding appropriate design variables that meet all the aims is challenging. This paper evaluates a hardpoint optimization approach to attain suspension K&C characteristic objectives with the design of experiments, neural networks, and genetic algorithm, based on a reference compact-sized prototype vehicle. The MBD model correlation is provided to optimize the hardpoints to improve the vehicle's steering kinematics concerning Ackerman error and camber angle variation that are out of target in baseline suspension. The results showed that NN based optimization strategy to define the hardpoints has significantly improved targeted characteristics compared to conventional response surface methods in the limited design space.

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Section: Kandc Model and Validationmentioning

confidence: 99%

Kinematics & Compliance Validation of a Vehicle Suspension and Steering Kinematics Optimization Using Neural Networks

AĞAKİŞİ,

ÖZTÜRK

2023

mech

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“…In recent years, extensive research conducted by chassis engineers has shed light on the significance of suspension kinematic and compliance (K&C) characteristics, encompassing the suspension system's quasi-static attributes [10]. The analysis examined how the suspension angles and Roll Centre (RC) height changed by considering parallel wheel travel and roll motion [11].…”

Section: Kamal Et Al (mentioning

confidence: 99%

Dynamic Loading Effects on Car Suspension Components During Road Driving

Jie,

Abu Bakar

2023

JTSE

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Suspension system plays a vital role in providing a pleasure and safe driving experience. Because of that, studying the behaviour of suspension system during road driving is crucial. This paper describes the work carried out to investigate the dynamic loading effects on suspension components during rough road driving and analyse based on safety factor and fatigue life. A multibody simulation using SolidWorks software is conducted. Von Mises stress, strain, and displacement distribution plots are generated to visualize stress and deformation patterns. Fatigue life distribution plots indicate infinite fatigue life strength for the majority of components. Kinematic and compliance test examines roll centre, vertical movement of the wheel centre, toe angle and camber angle. This comprehensive analysis contributes to suspension system design and optimization, improving vehicle safety and durability.

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“…After expressing the load as a function of deflection, the tire stiffness is obtained by differentiating this function by the deflection at a specific deflection value. Moreover, using the suspension kinematics and compliance test system [23], the vertical stiffness of the vehicle suspension was determined by measuring the vertical deflection under the applied vertical load. The equivalent vertical stiffnesses of the front and rear suspension/tire combinations obtained from these methods are 28.9 and 31.6 N/mm, respectively.…”

Section: Dynamic Modelingmentioning

confidence: 99%

Idle Vibration Reduction of a Diesel Sport Utility Vehicle

Ryu¹,

Kim²,

Lee³

et al. 2022

Preprint

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This paper presents a study on the idle vibration reduction of a diesel sport utility vehicle (SUV). To reduce idle vibration, the transmission paths of vibration from the engine to the driver seat floor were investigated with the vehicle components related to idle vibration. Furthermore, operational deflection shape (ODS) tests were conducted to visualize the vibration shapes during engine idling. Experimental modal analyses were performed to obtain the natural frequencies and mode shapes. Through the ODS and modal tests, the vibration characteristics of the diesel SUV during idling were identified. Considering these vibration characteristics, a multi-body dynamic model for the diesel SUV described by differential equations of motion was established to evaluate the idle vibration. To implement the dynamic model effectively, the equivalent stiffnesses and damping coefficients included in the model were determined experimentally or analytically. The established dynamic model was verified by comparing the natural frequencies and idle vibration levels between simulations. Using this dynamic model, we analyzed the effects of various design variables on idle vibration and obtained an optimal design for reducing the idle vibration level. Finally, we present a design guide to reduce the idle vibration for diesel SUVs.

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Study on kinematic and compliance test of suspension

Cited by 6 publications

References 0 publications

Kinematics & Compliance Validation of a Vehicle Suspension and Steering Kinematics Optimization Using Neural Networks

Kinematics & Compliance Validation of a Vehicle Suspension and Steering Kinematics Optimization Using Neural Networks

Dynamic Loading Effects on Car Suspension Components During Road Driving

Idle Vibration Reduction of a Diesel Sport Utility Vehicle

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