Integration of Physical and Virtual Tools for Virtual Prototype Validation and Model Improvement

Joo, Sang-Gun; You, Shawn; Albright, FJ; Leser, Christoph

doi:10.4271/2003-01-2813

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…These material and physical variations can change the structural performances [7][8][9][10][11]. When taking into account these parameters, the simulation model can give the reliabilities of the prediction of structural responses.…”

Section: Theoretical Considerations For the Dynamic Correlationmentioning

confidence: 99%

“…The automotive body structure made by the sheetmetal-forming process influences the junction boundaries and gradual variation shapes on the panels owing to the deformed shapes or strain distributions, which in turn influence the thinning effect of panels or the geometric weak points. These material and physical variations can change the structural performances [7][8][9][10][11]. When taking into account these parameters, the simulation model can give the reliabilities of the prediction of structural responses.…”

Section: Theoretical Considerations For the Dynamic Correlationmentioning

confidence: 99%

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A frequency response function-based updating technique for the finite element model of automotive structures

Lee

Han

2008

Proceedings of the Institution of Mechanical Engineers, Part D:

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Today's automotive industry uses finite element analysis (FEA) in a huge variety of applications in order to optimize structures and processes before hardware is produced. Efficiencies can be enhanced and margins are reduced because the external loads and structural properties are identified with higher confidence. The accuracy of FEA predictions has become increasingly important and directly influences the competitiveness of a product on the market. Because automotive structures are under dynamic environments, the correlation on the basis of static deformations independent of the mass and damping parameters do not provide a valuable reference from the view of the dynamic characteristics. In this paper, by systematically comparing the results from analytical and experimental analysis techniques, finite element (FE) models can be validated by the deterministic and robust design on the basis of each tolerance of design parameters, and improved so that they can be used with more confidence in further analysis. Making use of different types of test datum, a recommended procedure is to use a sequence of analysis in which mass, stiffness, damping, and external loading are validated and, if necessary, updated.

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Section: Theoretical Considerations For the Dynamic Correlationmentioning

confidence: 99%

Section: Theoretical Considerations For the Dynamic Correlationmentioning

confidence: 99%

A frequency response function-based updating technique for the finite element model of automotive structures

Lee

Han

2008

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Goktan [14] measured the road load data and evaluated the vibration of exhaust system on the multiaxial test rig. Joo [15] integrated the physical and virtual tools for vehicle prototype's validation and model's modification. Panse [16] developed an integrated durability test cycle for a car and its components applicable for Indian service usage of 160,000 km, and the validation of suspension components also have been demonstrated in this approach.…”

Section: Introductionmentioning

confidence: 99%

Durability Assessment and Riding Comfort Evaluation of a New Type Scooter by Road Simulation Technique

Lin¹,

Hwang

Chang³

et al. 2006

SAE Technical Paper Series

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The durability and riding comfort performance of a new type scooter were investigated by bench test. The longterm road load data of Taiwan market were measured with accelerometers and strain gauges by the on-line rainflow cycle counting method. The equivalent test track corresponding to 50,000 km in Taiwan market was established with ARTC's proving ground (Automotive Research and Testing Center in Taiwan) by correlation analysis technique. Then we performed the full vehicle bench durability test with load histories obtained by the road simulation technique. After a series of testing, analysis, and modification, the test vehicle already got a satisfactory result for the durability performance. Riding comfort analysis was performed following the ISO 2631 standard with accelerometers near the seat and foot in the bench testing. In order to get an optimum combination of suspension system for this new type scooter, many sets of front and rear suspensions were evaluated. The evaluation software of riding comfort was developed in accordance with ISO 2631 standard by using LabVIEW programming language. Finally, no cracks were observed when this scooter underwent a durability test on the public road more than 50,000 km. It means that above integrated approach was suitable to evaluate the durability and riding comfort performance of a new type vehicle.

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“…These deformations are not taken into account in the determination of the equilibrium position, which considers them negligible compared to the deformation of the suspension elements. It should be mentioned that in the automotive industry, there are some experimental tests carried out on a so-called full-vehicle road simulator (test rig), in which the wheels are disassembled/removed, and the external forces are applied (by some actuators) directly to the wheel spindle level [34]. Such an actuating mode is largely equivalent to the "rigid tire" assumption used in this work.…”

mentioning

confidence: 99%

A Method for Finding the Static Equilibrium of the Non-Steered Wheel Suspension Systems Used in Passenger Cars

Alexandru

2022

Applied Sciences

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In this work, an analytical method for finding the equilibrium configuration of the suspension systems used for the non-steered (usually rear) wheels of the passenger car is proposed. This study is based on the static model, which takes into account the elastic elements of the suspension (springs, bushings, anti-roll bar, buffers). The external loading of the suspension system comes from the contact forces between the wheels and the ground, depending on the specific operating regime of the vehicle (static or dynamic, by case). An algorithm for analysis of the relative movements in the wheel guiding mechanisms was developed (and further integrated in the general method for finding the equilibrium position) with the purpose of establishing the deformations of the elastic elements. Finally, a computer program was conceived and tested on a particular application.

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Integration of Physical and Virtual Tools for Virtual Prototype Validation and Model Improvement

Cited by 8 publications

References 2 publications

A frequency response function-based updating technique for the finite element model of automotive structures

A frequency response function-based updating technique for the finite element model of automotive structures

Durability Assessment and Riding Comfort Evaluation of a New Type Scooter by Road Simulation Technique

A Method for Finding the Static Equilibrium of the Non-Steered Wheel Suspension Systems Used in Passenger Cars

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