The use of vehicle acceleration measurements to estimate road roughness

González, Arturo; O’Brien, Eugene J.; Li, Yingyan; Cashell, Katherine A.

doi:10.1080/00423110701485050

Cited by 239 publications

(127 citation statements)

References 5 publications

Supporting

Mentioning

116

Contrasting

Unclassified

Order By: Relevance

“…Many studies are based on the use of these artificial road profiles in order to evaluate, for example, the dynamic load on road pavements due to roughness [3,4] or to calculate the transfer function needed to estimate road roughness using vehicle acceleration measurements [5]. Moreover, many studies on the design and analysis of vehicle suspensions are often based on the use of artificial profiles [6,7].…”

Section: Introductionmentioning

confidence: 99%

Use of generated artificial road profiles in road roughness evaluation

Loprencipe

Zoccali

2017

J. Mod. Transport.

View full text Add to dashboard Cite

In the evaluation of road roughness and its effects on vehicles response in terms of ride quality, loads induced on pavement, drivers' comfort, etc., it is very common to generate road profiles based on the equation provided by ISO 8608 standard, according to which it is possible to group road surface profiles into eight different classes. However, real profiles are significantly different from the artificial ones because of the non-stationary feature of the first ones and the not full capability of the ISO 8608 equation to correctly describe the frequency content of real road profiles. In this paper, the international roughness index, the frequency-weighted vertical acceleration a wz according to ISO 2631, and the dynamic load index are applied both on artificial and real profiles, highlighting the different results obtained. The analysis carried out in this work has highlighted some limitation of the ISO 8608 approach in the description of performance and conditions of real pavement profiles. Furthermore, the different sensitivity of the various indices to the fitted power spectral density parameters is shown, which should be taken into account when performing analysis using artificial profiles.

show abstract

Section: Introductionmentioning

confidence: 99%

Use of generated artificial road profiles in road roughness evaluation

Loprencipe

Zoccali

2017

J. Mod. Transport.

View full text Add to dashboard Cite

show abstract

“…Increasing knowledge on terrain irregularity characteristics could improve the design of solutions for greater operator comfort. At the moment, while the ISO 8608:1995 standard [53] sets out the method to report the vertical accelerations arising from surface profiles, pointing to connections between profile roughness and mechanical failure as well as operator discomfort [53][54][55], it does not lay down any straightforward surface profile measurement methods or instruments, confirming the difficulties in making such measurements properly [56,57]. As a matter of fact, the methods to perform surface profile measurements can be direct or indirect:…”

Section: Effect Of Soil Profile On Tractor Dynamics: Theoretical Consmentioning

confidence: 99%

Whole-Body Vibration in Farming: Background Document for Creating a Simplified Procedure to Determine Agricultural Tractor Vibration Comfort

Cutini¹,

Brambilla²,

Bisaglia³

2017

Agriculture

View full text Add to dashboard Cite

Operator exposure to high levels of whole-body vibration (WBV) presents risks to health and safety and it is reported to worsen or even cause back injuries. Work activities resulting in operator exposure to whole-body vibration have a common onset in off-road work such as farming. Despite the wide variability of agricultural surface profiles, studies have shown that with changing soil profile and tractor speed, the accelerations resulting from ground input present similar spectral trends. While on the one hand such studies confirmed that tractor WBV emission levels are very dependent upon the nature of the operation performed, on the other, irrespective of the wide range of conditions characterizing agricultural operations, they led researchers to set up a possible and realistic simplification and standardization of tractor driver comfort testing activities. The studies presented herewith indicate the usefulness, and the possibility, of developing simplified procedures to determine agricultural tractor vibration comfort. The results obtained could be used effectively to compare tractors of the same category or a given tractor when equipped with different seats, suspension, tyres, etc.

show abstract

“…However, the acceleration is more appropriate to measure a vehicle comfort level [2,3]. The root mean square (RMS), as shown in Eq.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Vehicular Discomfort Measures Produced by Speed Bumps Using Numerical Simulation

Lima¹,

Silveira²,

Júnior³

et al. 2015

jmea

View full text Add to dashboard Cite

In the design of automotive components the use of numerical simulations has contributed to reducing the design time, decreasing the prototypes costs and increasing reliability of the final product. However is necessary a investigation on human body vertical vibrations transmitted by different types of vehicle for the purpose of recognition the danger and guiding to eliminate of risks of discomfort theirs. This study, the object is to compare the discomfort levels of occupants when different vehicles (car, bike and bus) move over a speed bump. The results show that wheelbase, wheel size and vehicle weight can lead to different vehicular discomfort results. Results of the study demonstrated that heavy vehicles occupants (bus or truck) are subject to discomfort greater than occupants of light vehicles (cars and motorcycles) ones.

show abstract

The use of vehicle acceleration measurements to estimate road roughness

Cited by 239 publications

References 5 publications

Use of generated artificial road profiles in road roughness evaluation

Use of generated artificial road profiles in road roughness evaluation

Whole-Body Vibration in Farming: Background Document for Creating a Simplified Procedure to Determine Agricultural Tractor Vibration Comfort

Evaluation of Vehicular Discomfort Measures Produced by Speed Bumps Using Numerical Simulation

Contact Info

Product

Resources

About