Dynamics of a quarter car system with amplitude selective damping

• Autorzy: Gołdasz J. , Knapczyk M.
• Języki publikacji: EN

Abstrakty

EN

An amplitude-selective damping is a phenomenon in hydraulic shock absorbers where a pressure drop is a function of physical displacement even at a constant flow rate. The combination is often claimed to provide less damping for small displacement inputs as well as ordinary ride on vehicles. At the same time the system offers good ride and handling metrics by augmenting the damping force during such vehicle manoeuvres. Therefore, the purpose of this study is to investigate the dynamic performance of a simple two-degree-of-freedom (2DOF) system with an amplitude-selective damping type shock absorber. In the paper the authors derive & analyze a model of the shock absorber on a component level, then study the influence the device has on the suspension behaviour within the prescribed range of frequencies.

Słowa kluczowe

EN

car suspension; selective damping; ASD; shock absorber

PL

zawieszenie samochodowe; tłumienie selektywne; ASD; amortyzator

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej. Oddział Gliwice
• Czasopismo: Modelowanie Inżynierskie
• Rocznik: 2010
• Tom: T. 8, nr 39
• Strony: 89--96
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Gołdasz J.

autor

Knapczyk M.

• BWI Group, Technical Center Kraków, ul. Podgórki Tynieckie 2, 30-399 Kraków,

Bibliografia

• 1. Dixon J. C.: The Shock Absorber Handbook. John Wiley & Sons Ltd, 2008.
• 2. Ślusarczyk P., Krażewski O., Knapczyk M.: A hydraulic damper with an additional chamber assembly and a method of adjusting a damping characteristic of such a damper. European Patent EP 2 218 484 A1, 2008.
• 3. Gotz. O.: Dashpot with amplitude-dependent shock absorption. US Patent 7441639, 2008.
• 4. Gotz O.: Amplitude-attenuating dashpot. US Patent 6561326, 2003.
• 5. Deferme S.: Stroke-dependent bypass. US Patent 6220409, 2001.
• 6. Nevoigt A., Lang S.: Shock absorber with amplitude damping. US Patent 7451860, 2008.
• 7. Krefeld A.: Device for amplitude-dependent damper. US Patent 7628256, 2009.