Simulation study of the method of random kinematic road excitation’s reconstruction based on suspension dynamic responses with signal disruptions

• Autorzy: Klockiewicz Zbyszko , Ślaski Grzegorz , Spadło Mikołaj
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

suspension; kinematic excitation; dynamic responses

PL

zawieszenie; wymuszenie kinematyczne; odpowiedzi dynamiczne

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2019
• Tom: Vol. 30, nr 2
• Strony: art. no. 2019208
• Opis fizyczny: Bibliogr. 7 poz., wykr.

Twórcy

autor

Klockiewicz Zbyszko

• Poznan University of Technology

autor

Ślaski Grzegorz

• Poznan University of Technology

autor

Spadło Mikołaj

• 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).