TY  - JOUR
AU  - Sekulić, Dragan
AU  - Dedović, Vlastimir
AU  - Rusov, Srđan
AU  - Obradović, Aleksandar
AU  - Šalinić, Slaviša
PY  - 2016
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2408
AB  - The paper defines "equal oscillatory comfort zones" as a novel concept in the sphere of the bus vertical dynamics. Oscillatory zones are determined using the original and validated oscillatory model of the intercity bus and comfort criteria according to the international ISO 2631/1997 standard requirements. The bus spatial oscillatory model with 65 degrees of freedom (DOF) was built in the ADAMS/View module of the multibody software package MSC.ADAMS. The model was excited by two different real road surfaces: poor asphalt-concrete and good asphalt-concrete pavements, registered at the speed of 64 km/h and 90 km/h respectively. It was found by simulation that oscillatory zones with different comfort assessments exist in the bus. The most comfortable oscillatory zone is in the middle part of the bus (between the front and the rear axle), whereas the least comfortable oscillatory zone is on the rear bus overhang. For the purpose of the ride comfort harmonization, using Design of Experiments (DOE) analysis, new oscillatory parameters are proposed for passenger seats which do not ensure satisfactory oscillatory comfort level. It is concluded that harmonization of oscillatory comfort for all bus passengers could be achieved for good asphalt-concrete excitation. For the poor road excitation it is possible to achieve significant improvement of comfort, especially for the assistant driver and passengers in the bus rear overhang. On a poor asphalt-concrete pavement, by using the proposed seat oscillatory parameters, the allowed exposure time for vertical whole body vibration would be considerably extended. Relevance to industry: Oscillatory comfort has a particular importance for users of intercity buses traveling longer distances. Comfort assessment of each bus user and mapping of comfort zones can indicate the individual seat and group of the seats on which the oscillatory comfort is reduced. Proper selection of seat oscillatory parameters can improve users comfort. Results of such an analysis can significantly help bus designers and manufacturers in order to improve and harmonize oscillatory comfort on the whole vehicle platform.
PB  - Elsevier Science Bv, Amsterdam
T2  - International Journal of Industrial Ergonomics
T1  - Definition and determination of the bus oscillatory comfort zones
EP  - 339
SP  - 328
VL  - 53
DO  - 10.1016/j.ergon.2016.04.003
ER  - 

@article{
author = "Sekulić, Dragan and Dedović, Vlastimir and Rusov, Srđan and Obradović, Aleksandar and Šalinić, Slaviša",
year = "2016",
abstract = "The paper defines "equal oscillatory comfort zones" as a novel concept in the sphere of the bus vertical dynamics. Oscillatory zones are determined using the original and validated oscillatory model of the intercity bus and comfort criteria according to the international ISO 2631/1997 standard requirements. The bus spatial oscillatory model with 65 degrees of freedom (DOF) was built in the ADAMS/View module of the multibody software package MSC.ADAMS. The model was excited by two different real road surfaces: poor asphalt-concrete and good asphalt-concrete pavements, registered at the speed of 64 km/h and 90 km/h respectively. It was found by simulation that oscillatory zones with different comfort assessments exist in the bus. The most comfortable oscillatory zone is in the middle part of the bus (between the front and the rear axle), whereas the least comfortable oscillatory zone is on the rear bus overhang. For the purpose of the ride comfort harmonization, using Design of Experiments (DOE) analysis, new oscillatory parameters are proposed for passenger seats which do not ensure satisfactory oscillatory comfort level. It is concluded that harmonization of oscillatory comfort for all bus passengers could be achieved for good asphalt-concrete excitation. For the poor road excitation it is possible to achieve significant improvement of comfort, especially for the assistant driver and passengers in the bus rear overhang. On a poor asphalt-concrete pavement, by using the proposed seat oscillatory parameters, the allowed exposure time for vertical whole body vibration would be considerably extended. Relevance to industry: Oscillatory comfort has a particular importance for users of intercity buses traveling longer distances. Comfort assessment of each bus user and mapping of comfort zones can indicate the individual seat and group of the seats on which the oscillatory comfort is reduced. Proper selection of seat oscillatory parameters can improve users comfort. Results of such an analysis can significantly help bus designers and manufacturers in order to improve and harmonize oscillatory comfort on the whole vehicle platform.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "International Journal of Industrial Ergonomics",
title = "Definition and determination of the bus oscillatory comfort zones",
pages = "339-328",
volume = "53",
doi = "10.1016/j.ergon.2016.04.003"
}

Sekulić, D., Dedović, V., Rusov, S., Obradović, A.,& Šalinić, S.. (2016). Definition and determination of the bus oscillatory comfort zones. in International Journal of Industrial Ergonomics
Elsevier Science Bv, Amsterdam., 53, 328-339.
https://doi.org/10.1016/j.ergon.2016.04.003

Sekulić D, Dedović V, Rusov S, Obradović A, Šalinić S. Definition and determination of the bus oscillatory comfort zones. in International Journal of Industrial Ergonomics. 2016;53:328-339.
doi:10.1016/j.ergon.2016.04.003 .

Sekulić, Dragan, Dedović, Vlastimir, Rusov, Srđan, Obradović, Aleksandar, Šalinić, Slaviša, "Definition and determination of the bus oscillatory comfort zones" in International Journal of Industrial Ergonomics, 53 (2016):328-339,
https://doi.org/10.1016/j.ergon.2016.04.003 . .

TY  - JOUR
AU  - Sekulić, Dragan
AU  - Dedović, Vlastimir
AU  - Rusov, Srđan
AU  - Šalinić, Slaviša
AU  - Obradović, Aleksandar
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1721
AB  - The paper analyzes the effects of vibrations on the comfort of intercity bus IK-301 users. Evaluation of vibration effects was carried out according to the criteria set out in the 1997 ISO 2631-1 standard for comfort in public means of transport. Comfort is determined for the space of a driver, passenger in the middle part of the bus and passenger in the rear overhang. Also, the allowable exposure time to vibrations in drivers for the reduced comfort criterion was determined according to the 1978 ISO 2631-1 standard. The bus spatial oscillatory model with ten degrees of freedom was developed for the needs of the analysis. Bus excitation was generated applying the Power Spectral Density of the asphalt-concrete road roughness, as described by the H. Braun model. The allowable vibration exposure time for the driver's body decreases as the spring stiffness of the driver's seat suspension system increases. Simulation was performed using the MATLAB software.
PB  - Elsevier Science Inc, New York
T2  - Applied Mathematical Modelling
T1  - Analysis of vibration effects on the comfort of intercity bus users by oscillatory model with ten degrees of freedom
EP  - 8644
IS  - 18-19
SP  - 8629
VL  - 37
DO  - 10.1016/j.apm.2013.03.060
ER  - 

@article{
author = "Sekulić, Dragan and Dedović, Vlastimir and Rusov, Srđan and Šalinić, Slaviša and Obradović, Aleksandar",
year = "2013",
abstract = "The paper analyzes the effects of vibrations on the comfort of intercity bus IK-301 users. Evaluation of vibration effects was carried out according to the criteria set out in the 1997 ISO 2631-1 standard for comfort in public means of transport. Comfort is determined for the space of a driver, passenger in the middle part of the bus and passenger in the rear overhang. Also, the allowable exposure time to vibrations in drivers for the reduced comfort criterion was determined according to the 1978 ISO 2631-1 standard. The bus spatial oscillatory model with ten degrees of freedom was developed for the needs of the analysis. Bus excitation was generated applying the Power Spectral Density of the asphalt-concrete road roughness, as described by the H. Braun model. The allowable vibration exposure time for the driver's body decreases as the spring stiffness of the driver's seat suspension system increases. Simulation was performed using the MATLAB software.",
publisher = "Elsevier Science Inc, New York",
journal = "Applied Mathematical Modelling",
title = "Analysis of vibration effects on the comfort of intercity bus users by oscillatory model with ten degrees of freedom",
pages = "8644-8629",
number = "18-19",
volume = "37",
doi = "10.1016/j.apm.2013.03.060"
}

Sekulić, D., Dedović, V., Rusov, S., Šalinić, S.,& Obradović, A.. (2013). Analysis of vibration effects on the comfort of intercity bus users by oscillatory model with ten degrees of freedom. in Applied Mathematical Modelling
Elsevier Science Inc, New York., 37(18-19), 8629-8644.
https://doi.org/10.1016/j.apm.2013.03.060

Sekulić D, Dedović V, Rusov S, Šalinić S, Obradović A. Analysis of vibration effects on the comfort of intercity bus users by oscillatory model with ten degrees of freedom. in Applied Mathematical Modelling. 2013;37(18-19):8629-8644.
doi:10.1016/j.apm.2013.03.060 .

Sekulić, Dragan, Dedović, Vlastimir, Rusov, Srđan, Šalinić, Slaviša, Obradović, Aleksandar, "Analysis of vibration effects on the comfort of intercity bus users by oscillatory model with ten degrees of freedom" in Applied Mathematical Modelling, 37, no. 18-19 (2013):8629-8644,
https://doi.org/10.1016/j.apm.2013.03.060 . .