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The paper presents the results of simulation studies of the method of random kinematic road excitation’s reconstruction based on the dynamic responses of the suspension acquired in road tests. The method uses registered unsprung mass accelerations as well as model of suspension’s vertical dynamics and tracking control with PID controller to monitor unsprung mass accelerations’ signal in simulation. In the simulation the quality of reconstruction of random irregularities of the road profile was tested. The road profiles were generated based on their power spectral density of road profile heights that is in line with the description given in ISO 8608 standard. Four road classes had their profiles estimations tested – A, B, C and D (corresponding to highways through city roads to the very bad quality roads). The influence of the simulated noise in the suspension’s dynamic response signal – i.e. unsprung mass acceleration – was also tested. The methods of processing of the initial acceleration’s signal from the road tests were proposed and achieved accuracy was defined. Lastly, the necessary requirements to use the method effectively were defined and its limitations were listed.
Czasopismo
Rocznik
Tom
Strony
art. no. 2019208
Opis fizyczny
Bibliogr. 7 poz., wykr.
Twórcy
autor
- Poznan University of Technology
autor
- Poznan University of Technology
autor
- Poznan University of Technology
Bibliografia
- 1. Z. Klockiewicz, G. Ślaski, The method of estimating kinematic road excitation with use of real suspension responses and model.
- 2. ISO, INTERNATIONAL STANDARD ISO profiles — Reporting of measured data, vol. 8608, 1997.
- 3. P. Múčka, Road waviness and the dynamic tyre force, Int. J. Veh. Des., 36(2/3) (2005) p. 216.
- 4. P. Múčka, Current approaches to quantify the longitudinal road roughness, Int. J. Pavement Eng., 17(8) (2016) 659 – 679.
- 5. M. W. Sayers, T. D. Gillespie, W. D. O. Paterson, Guidelines for Conducting and Calibrating Road Roughness Measurements, 46 (1986).
- 6. P. Múčka, International Roughness Index specifications around the world, Road Mater. Pavement Des., 18(4) (2017) 929 – 965.
- 7. M. Sayers, S. Karamihas, The little book of profiling Basic Information about Measuring and Interpreting Road Profiles, Univ. Michigan, September, (1998) p. 100.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-db5945bb-256d-4058-ada5-0fdeeba7751c