Influence of magnetorheological stabilizer bar on vehicle roll stability

Influence of magnetorheological stabilizer bar on vehicle roll stability

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In order to ensure the driving safety (the anti-roll performance) of vehicles when steering and the ride comfort when passing through uneven roads, this chapter proposes the principle and configuration of a novel reciprocating rotary damper based on a smart material-magnetorheological (MR) fluid with a large controllable torque range and a semi-active stabilizer bar system based on the MR damper. The dynamic model of the MR semi-active stabilizer bar system is established. The mathematical model of the proposed MR damper is derived, and the corresponding controllable torque characteristics are obtained and evaluated using the finite element analysis results via software ANSYS. A piecewise control strategy with respect to vehicle body roll angular velocity is proposed, and a preliminary control of MR stabilizer bar is conducted and compared with the passive-on stabilizer bars on the vehicle anti-roll performance.

Chapter Contents:

  • 6.1 Introduction
  • 6.2 MR semi-active stabilizer bar system
  • 6.2.1 Vehicle roll dynamic model
  • 6.2.2 MR stabilizer bar
  • Mathematical model
  • Force analysis of the MR stabilizer bar
  • 6.2.3 The MR damper
  • MR fluids properties
  • Structural principle
  • Controllable torque
  • Electromagnetic simulation
  • Output characteristics
  • 6.2.4 Control strategy for MR stabilizer bar
  • 6.3 ADAMS/Car modeling and simulation
  • 6.3.1 Comparison between ADAMS/Car model and mathematical model
  • 6.3.2 Full-vehicle simulation
  • Fish hook maneuver
  • Single lane change maneuver
  • Pylon course maneuver
  • 6.4 Conclusion
  • References

Inspec keywords: finite element analysis; suspensions (mechanical components); vehicle dynamics; steering systems; mechanical stability; design engineering; torque; shock absorbers; magnetorheology; intelligent materials; vibration control; automotive components; road vehicles; bars

Other keywords: vehicle roll stability; vehicle body roll angular velocity; vehicle anti-roll performance; finite element analysis results; controllable torque characteristics; driving safety; piecewise control strategy; ride comfort; MR damper; magnetorheological stabilizer bar; MR stabilizer bar; dynamic model; preliminary control; MR semiactive stabilizer bar system; reciprocating rotary damper; smart material; controllable torque range; mathematical model

Subjects: Road-traffic system control; Vibrations and shock waves (mechanical engineering); Mechanical variables control; Design; Buckling and instability (mechanical engineering); Control system analysis and synthesis methods; Automobile industry; Numerical analysis; Finite element analysis; Mechanical components; Vehicle mechanics

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