Semiactive vibration control systems possess both the simplicity and reliability of passive systems while maintaining the adaptability of active vibration control systems integrated with an appropriate control algorithm. One of the recent and promising technologies in semiactive vibration control is the utilization of magnetorheological fluids (MRFs) and magnetorheological elastomers (MREs). The well-known remarkable feature of MR materials is the continuous controllability of stiffness and damping properties under external magnetic field. This unique controllable characteristic of MR materials has catalyzed comprehensive research and development focusing on vibration control systems including vehicle dampers, engine mounts, adaptive tuned vibration absorber, and seismic bearings. To this end, this special issue is devoted to all subjects related to MR techniques that deal with configuration design, dynamic modeling, and semiactive controller implementation along with simulation or/and experimental works.

In view of the above considerations, we sincerely invite researchers to contribute to this special issue with original research articles as well as review articles. The articles should contain most recent advances and new potential application systems in the field of MR techniques focusing on semiactive vibration control.

Potential topics include, but are not limited to:

• MR materials: mechanical properties and dynamic behavior
• Design and optimization of MR devices
• Modeling, simulation, and semiactive control theories
• Engineering applications of MR devices in vibration and shock isolation
• Vibration signal processing and control system integration