Abstract
Wave-based control (WBC) offers a relatively novel approach to the challenge of controlling flexible systems by treating the
interaction between the actuator and the system as the launch and absorption of mechanical "waves" or propagating disturbances.
This control technique has been often used for the systems with lumped models where the entire system mass is allocated to
discrete lumped rigid masses which are linked together via flexible massless springs [1-3].
WBC, known for its model-independent nature, is a robust approach but unexplored in active suspension systems to date. This
study adapts WBC to a lumped mass-spring quarter-car suspension model. Applying a nonlinear model for an electro-hydraulic
servo actuator and quarter suspension system, the 'force impedance' version of WBC [2], shown in Figure 1, is adapted, and
employed for its effective vibration control.
In road vehicles, active suspension systems utilize actuators to generate adjustable forces between the vehicle's sprung and
unsprung masses, enhancing both ride comfort and handling. Ride comfort pertains to the vehicle's ability to reduce mechanical
vibrations felt by passengers, caused by uneven road surfaces [4]. These suspension systems incorporate actuators that modulate
forces between the sprung and unsprung masses, playing a pivotal role in improving ride comfort in future vehicle designs.
The performance of different controllers in active suspension systems have been extensively researched but this work explores
the effectiveness of wave-based controller on dampening vibrations of these systems which has not been studied to date.
interaction between the actuator and the system as the launch and absorption of mechanical "waves" or propagating disturbances.
This control technique has been often used for the systems with lumped models where the entire system mass is allocated to
discrete lumped rigid masses which are linked together via flexible massless springs [1-3].
WBC, known for its model-independent nature, is a robust approach but unexplored in active suspension systems to date. This
study adapts WBC to a lumped mass-spring quarter-car suspension model. Applying a nonlinear model for an electro-hydraulic
servo actuator and quarter suspension system, the 'force impedance' version of WBC [2], shown in Figure 1, is adapted, and
employed for its effective vibration control.
In road vehicles, active suspension systems utilize actuators to generate adjustable forces between the vehicle's sprung and
unsprung masses, enhancing both ride comfort and handling. Ride comfort pertains to the vehicle's ability to reduce mechanical
vibrations felt by passengers, caused by uneven road surfaces [4]. These suspension systems incorporate actuators that modulate
forces between the sprung and unsprung masses, playing a pivotal role in improving ride comfort in future vehicle designs.
The performance of different controllers in active suspension systems have been extensively researched but this work explores
the effectiveness of wave-based controller on dampening vibrations of these systems which has not been studied to date.
| Original language | English |
|---|---|
| Pages | 69-70 |
| Number of pages | 2 |
| Publication status | Published - 26 Jun 2024 |
| Event | Symposium of Mechanism and Machine Theory, June 2024, : 60 years since the foundation of the Mechanism and Machine Theory journal - University of Minho, Guimaraes, Portugal Duration: 26 Jun 2024 → 28 Jun 2024 https://mmtsymposium.com/ |
Conference
| Conference | Symposium of Mechanism and Machine Theory, June 2024, |
|---|---|
| Abbreviated title | MMT Symposium |
| Country/Territory | Portugal |
| City | Guimaraes |
| Period | 26/06/24 → 28/06/24 |
| Other | 60 years since the foundation of the Mechanism and Machine Theory journal |
| Internet address |