Experimental validation of the U&lt;SUP align="right"&gt;*&lt;/SUP&gt; index theory for load transfer analysis

Pejhan, Khashayar; Wang, Qingguo; Wu, Chenyu; Telichev, Igor

doi:10.1504/ijhvs.2017.084851

Cited by 9 publications

(2 citation statements)

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“…1 Wang et al extended the basic U * theory to orthotropic composites and nonlinear elastic materials. 10 The U * index theory has been validated through two physical experiments in Pejhan et al, 11,12 where the load paths predicted by the U * theory well agree with the testing results. The advantages of the U * index theory over the conventional stress analysis was presented through a case study of a vehicle component.…”

Section: Introductionmentioning

confidence: 82%

Demonstration of the effectiveness of U^*-based design criteria on vehicle structural design

Wang

Pejhan

Telichev

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part D:

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A basic function of vehicle structures is bearing the load. To design high efficient vehicle structures, it is crucial to know how the applied forces are transferred in the structure. The U * index was introduced as the indicator of the main load path in the structure. U *-based design criteria were developed to promote the ability of the U * index theory for vehicle structural design. However, the effectiveness of these U *-based design criteria on improving the structural performance is still unknown. In this paper, an improved design of a vehicle component was proposed based on the U * governed design criteria. Compared to the original design, the weight of the modified structure is reduced by 10% while the maximum displacement and stress are declined by 5% and 26%, respectively. The paper proves that the application of the U * driven design criteria can effectively increase the structural performance.

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Section: Introductionmentioning

confidence: 82%

Demonstration of the effectiveness of U^*-based design criteria on vehicle structural design

Wang

Pejhan

Telichev

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…In conventional vehicles, the braking force would cause the body's center of gravity to shift forward, which would generate the load transfer from the rear axle to the hitch joint [2], [32]. This phenomenon will generate the pitch moment at the pitch center, 𝑀 𝑝𝑐 , during braking as a response to load transfer.…”

Section: Pitch Moment Rejection With Skyhook Control Strategymentioning

confidence: 99%

Development of a Dynamic Hitch Lift Controller using a Hybrid Control Strategy in A Heavy Combination Vehicle

Abdul Manaf,

Abu Bakar,

Hudha

et al. 2024

Int. J. Automot. Mech. Eng.

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This study presents a novel hybrid control strategy for the active hitch system, named the Dynamic Hitch Lift (DHIL), comprising a hybrid controller and a force actuator. The controller was designed to mitigate longitudinal load transfer in heavy combination vehicles by reducing the semitrailer pitch rate and rejecting the pitch moment, assisted by the virtual Skyhook moment. The new controller can calculate the desired force of the DHIL actuator to counter incoming load transfer during harsh braking exceeding 0.5 g braking deceleration. The proposed controller was assessed using a verified 12-degrees-of-freedom tractor-semitrailer model in harsh braking tests across different vehicle configurations. The first evaluation involved a stability test to demonstrate the stability of the controller in reducing load transfer across different vehicle configurations. The second evaluation was on controller performance, which revealed that the dynamic vehicle response has efficiently reduced load transfer by up to 9.14%. The third evaluation has focused on the DHIL actuator performance, which indicated that the actuator generated a force of 159,197 N, which translated into a stepper motor torque of 1,695 Nm at a speed of 1,000 rpm. Simulation results affirmed that the proposed DHIL controller was stable and could effectively reduce longitudinal load transfer in heavy combination vehicles during harsh braking.

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Load Transfer Analysis of a Bus Bay Section Under Standard Rollover Test Using U*M Index

Wang

Zhou

Telichev

et al. 2018

Int.J Automot. Technol.

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Experimental validation of the U<SUP align="right">*</SUP> index theory for load transfer analysis

Cited by 9 publications

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Demonstration of the effectiveness of U^*-based design criteria on vehicle structural design

Demonstration of the effectiveness of U^*-based design criteria on vehicle structural design

Development of a Dynamic Hitch Lift Controller using a Hybrid Control Strategy in A Heavy Combination Vehicle

Load Transfer Analysis of a Bus Bay Section Under Standard Rollover Test Using U*M Index

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Experimental validation of the U<SUP align="right">*</SUP> index theory for load transfer analysis

Cited by 9 publications

References 0 publications

Demonstration of the effectiveness of U*-based design criteria on vehicle structural design

Demonstration of the effectiveness of U*-based design criteria on vehicle structural design

Development of a Dynamic Hitch Lift Controller using a Hybrid Control Strategy in A Heavy Combination Vehicle

Load Transfer Analysis of a Bus Bay Section Under Standard Rollover Test Using U*M Index

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Product

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Demonstration of the effectiveness of U^*-based design criteria on vehicle structural design

Demonstration of the effectiveness of U^*-based design criteria on vehicle structural design