Related Experiment Video
Updated: Aug 8, 2025
09:51
A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure
Published on: February 20, 2019
25.5K
Hydraulic Vehicle Damper Controlled by Piezoelectric Valve
Lech Knap1, Michał Makowski1, Krzysztof Siczek2
1Institute of Vehicles and Construction Machinery Engineering, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw, Poland.
Sensors (Basel, Switzerland)
|February 28, 2023
Summary
This study introduces a novel piezoelectric actuator-controlled vehicle vibration damper. This advanced damper rapidly adjusts damping force, enhancing vehicle safety by reducing wheel force variations.
Area of Science:
- Mechanical Engineering
- Automotive Engineering
- Control Systems
Background:
- Traditional vehicle dampers have limitations in rapid response and adjustability.
- Controlling damping characteristics is crucial for improving vehicle dynamics and safety.
Purpose of the Study:
- To present and investigate an original vehicle vibration damper controlled by a piezoelectric actuator-actuated valve.
- To demonstrate the rapid adjustability of damping characteristics and its impact on vehicle dynamics.
Main Methods:
- Development of a novel valve mechanism utilizing a piezoelectric actuator to control oil flow gap.
- Experimental investigation of the damper's response to varying voltage inputs.
- Numerical modeling of the damper and a vehicle equipped with the developed system.
Main Results:
- The piezoelectric actuator enabled a five-fold change in damping force within approximately 10 milliseconds.
- Dissipative characteristics were determined, allowing for the creation of a validated numerical model.
- Simulations showed significant reduction in vertical wheel forces, indicating improved vehicle stability.
Conclusions:
- The piezoelectric actuator-controlled damper offers rapid and effective control over damping forces.
- This technology has the potential to significantly enhance vehicle traffic safety by improving stability.
- Further road testing is planned to validate the promising results in real-world conditions.
Keywords:
controlled damperdamper characteristicexperimental investigationpiezoelectric valvereaction timeMore Related Videos
09:21Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer
Published on: September 28, 2015
12.7K
06:45Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
Published on: October 28, 2022
1.7K
Related Concept Videos
01:26PD Controller: Design
310
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
310
01:03Application of Pascal's Law
8.6K
Pascal's experimentally proven observations—that a change in pressure applied to an enclosed fluid is transmitted undiminished throughout the fluid and to the walls of its container—provide the foundations for hydraulics, one of the most important developments in modern mechanical technology.
Hydraulic systems are used to operate automotive brakes, hydraulic jacks, and numerous other mechanical systems. We can derive a relationship between the forces in a simple hydraulic system...
Hydraulic systems are used to operate automotive brakes, hydraulic jacks, and numerous other mechanical systems. We can derive a relationship between the forces in a simple hydraulic system...
8.6K
01:21Design Example: Creating a Hydraulic Model of a Dam Spillway
258
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
258
01:19PID Controller
178
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
178
01:14Fluid Pressure
677
In mechanical engineering, fluid pressure plays a critical role in designing systems that utilize liquid flow, such as hydraulic systems, pumps, and valves. When designing these systems, engineers must ensure they can withstand the forces created by fluid pressure to avoid damage or failure.
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
677
01:24PI Controller: Design
396
Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
396