Aplicação de métodos numéricos de otimização ao problema conjunto da dirigibilidade e conforto veicular.

Vilela, Daniel

doi:10.11606/t.3.2010.tde-20082010-153319

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A fractional factorial matrix as detailed by Vilela (2010) has been considered for this work. Considering the backward elimination method it is possible to obtain the most significant regressors as shown in Table 4.…”

Section: Metric Unity Criteriamentioning

confidence: 99%

Numerical optimisation methods applied to the concurrent problem of vehicle ride and handling

Vilela¹,

Barbosa²

2013

IJVSMT

Self Cite

View full text Add to dashboard Cite

This text presents a new proposal for an overall ride and handling metric to be used to optimise vehicle performance through concurrent simulation models. The proposed metric has the intention to cover simultaneously the most relevant aspects of a passenger vehicle dynamic behaviour. The individual models for ride and handling have been validated against physical measurements in order to assure a reliable output. A numerical optimisation method is used to simultaneously evaluate the complete vehicle dynamic performance related to the single overall metric. The results show an effective way to improve the vehicle performance based on this new proposed metric, with gains in terms of reduction in development time and cost for new projects.

show abstract

Section: Metric Unity Criteriamentioning

confidence: 99%

Numerical optimisation methods applied to the concurrent problem of vehicle ride and handling

Vilela¹,

Barbosa²

2013

IJVSMT

Self Cite

View full text Add to dashboard Cite

show abstract

“…In general, during the vehicle project and design development phase, the automotive industry utilizes a combination of design tools such as vehicle modal response from numerical simulation (Costa, 1992), laboratory tests with shaker rigs (Boggs, 2009) and the results of experimental field road tests, to fine tune vehicle suspension (Vilela and Tamai, 2005). Despite the efficiency of the numerical simulations, laboratory and experimental tests are still in use, even though being time-consuming, expensive and limited to the specific road conditions of the test track.…”

Section: Introductionmentioning

confidence: 99%

“…Quarter car vehicle model with single random input is traditionally used for spectral studies (Barbosa, 2001;Sun, 1998;Cebon, 1999;Silva, 1999). The complete vehicle model is employed for modal and control purpose (Vilela, 2010;Costa 1992). The motivation of the present work is to extend the power of the analytic tools for the design of vehicle suspension with the application of the frequency domain response technique to deal with random input of the pavement roughness.…”

Section: Introductionmentioning

confidence: 99%

Vehicle dynamic response due to pavement roughness

Barbosa

2011

J. Braz. Soc. Mech. Sci. & Eng.

View full text Add to dashboard Cite

The goal of the present study is the development of a spectral method to obtain the frequency response of the half-vehicle subjected to a measured pavement roughness in the frequency domain. For this purpose, a half-vehicle dynamic model with a two-point delayed base excitation was developed to correlate with the spectral density function of the pavement roughness, to obtain the system spectral transfer function, in the frequency domain. The vertical pavement profile was measured along two roads sections. The surface roughness was here expressed in terms of the spectral density function of the measured vertical pavement profile with respect to the evenness wave number of the pavement roughness. A frequency response analysis was applied to obtain the vertical and angular modal vehicle dynamic response with the excitation of the power spectral density (PSD) of the pavement roughness. The results show that at low speed, the vehicle suspension mode is magnified due to the unpaved track signature. At 120 km/h in an undulated asphalted road, the first vehicle vibration mode has a significant motion amplification, which may cause passenger discomfort.

show abstract

Aplicação de métodos numéricos de otimização ao problema conjunto da dirigibilidade e conforto veicular.

Cited by 2 publications

References 0 publications

Numerical optimisation methods applied to the concurrent problem of vehicle ride and handling

Numerical optimisation methods applied to the concurrent problem of vehicle ride and handling

Vehicle dynamic response due to pavement roughness

Contact Info

Product

Resources

About