Method for Random Vibration of Hysteretic Systems

Wen, Y. K.

doi:10.1061/jmcea3.0002106

Cited by 1,837 publications

(493 citation statements)

References 0 publications

Supporting

Mentioning

369

Contrasting

Unclassified

Order By: Relevance

“…Bouc 13 first proposed the differential model to describe nonlinear hysteresis in 1967. Then, Wen 14 modified the model in 1976, which is Bouc-Wen model. The model can be used to predict various types of hysteretic behaviors.…”

Section: Nonlinearity Of the Frictional Torquementioning

confidence: 99%

Nonlinear dynamical model of an automotive dual mass flywheel

Chen

Zeng

Jiang

2015

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The hysteresis, stick-slip, and rotational speed-dependent characteristics in a basic dual mass flywheel are obtained from a static and a dynamic experiments. Based on the experimental results, a nonlinear model of the transferred torque in this dual mass flywheel is developed, with the overlying form of nonlinear elastic torque and frictional torque. The nonlinearities of stiffness are investigated, deriving a nonlinear model to describe the rotational speed-dependent stiffness. In addition, Bouc-Wen model is used to model the hysteretic frictional torque. Thus, the nonlinear 2-degree-of-freedom system of this dual mass flywheel is set up. Then, the Levenberg-Marquardt method is adopted for the parameter estimation of the frictional torque. Finally, taking the nonlinear stiffness in this model into account, the parameters of BoucWen model are estimated based on the dynamic test data.

show abstract

Section: Nonlinearity Of the Frictional Torquementioning

confidence: 99%

Nonlinear dynamical model of an automotive dual mass flywheel

Chen

Zeng

Jiang

2015

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…The hysteretic function of electric model simulates the hysteretic force generated by PSAs under the applied voltage. The Bouc-Wen hysteresis operator simulates the hysteresis loop using a nonlinear differential equation with uncertain parameters and can match a wide class of hysteretic systems by choosing the appropriate parameters (Wen, 1976). In recent years, The Bouc-Wen model for PSAs was put forward using the Bouc-Wen hysteresis operator to simulate hysteretic characteristics of PSAs .…”

Section: Electric Modelmentioning

confidence: 99%

Modeling of piezoelectric stack actuators considering bonding layers

Zhu

Chen

Rui

2015

Journal of Intelligent Material Systems and Structures

View full text Add to dashboard Cite

In order to achieve large displacement output of piezoelectric actuators, piezoelectric stack actuators are realized by mechanically layering or stacking multi-chip piezoelectric wafers in series and electronically connecting electrodes in parallel. Experimental investigations show that different layering or stacking processes greatly affect the dynamic performances of piezoelectric stack actuators. We consider that a linear force and a hysteretic force will be generated by all piezoelectric wafers under the applied voltage to a piezoelectric stack actuator, and the total force will result in the forced vibration of the system consisted of multi-chip piezoelectric wafers and bonding layers. Based on the above-mentioned opinion, an electromechanical model is put forward using a Bouc-Wen hysteresis operator to model the hysteretic force and the transfer matrix method for multibody system to establish the dynamic equation of the piezoelectric stack actuator. This research shows that (1) the layering or stacking processes do not affect the hysteretic characteristics of piezoelectric stack actuators and (2) the layering or stacking processes change the dynamic performance of piezoelectric stack actuators by changing the parameters of the bonding layers. These two conclusions are consistent with the experimental results.

show abstract

“…Furthermore, hysteresis in the forcevelocity plane can be seen at low velocities (i.e., as the motion of the ballscrew changes direction). Hysteresis effects have been extensively studied in the literature and a common model used to describe this phenomenon is the Bouc-Wen model (Wen, 1976), which can exhibit a wide variety of hysteretic behavior. However, we have found that the Bouc-Wen model is not able to accurately model the hysteretic effects over a broad range of frequencies, especially when its parameters are fit for experimental data at a single frequency.…”

Section: Mechanical Model and Error Quantificationmentioning

confidence: 99%

Design and experimental characterization of an electromagnetic transducer for large-scale vibratory energy harvesting applications

Cassidy

Scruggs

Behrens

et al. 2011

Journal of Intelligent Material Systems and Structures

101

View full text Add to dashboard Cite

This article reports on the design and experimental characterization of an electromagnetic transducer for energy harvesting from large structures (e.g., multistory buildings and bridges), for which the power levels can be above 100 W and disturbance frequencies below 1 Hz. The transducer consists of a back-driven ballscrew coupled to a permanent-magnet synchronous machine with power harvesting regulated via control of a four-quadrant power electronic drive. Design considerations between various subsystems are illustrated and recommendations in terms of minimal values are made for each design metric. Developing control algorithms to take full advantage of the unique features of this type of transducer requires a mechanical model that can adequately characterize the device’s intrinsic nonlinear behavior. A new model is proposed that can effectively capture this behavior. Comparison with experimental results verifies that the model is accurate over a wide range of operating conditions. As such, the model can be used to assess the viability of the technology and to correctly design controllers to maximize power generation. To demonstrate the device’s energy harvesting capability, impedance matching theory is used to optimize the power generated from a base-excited tuned mass damper. Both theoretical and experimental investigations are compared and the results are shown to match closely.

show abstract

Method for Random Vibration of Hysteretic Systems

Cited by 1,837 publications

References 0 publications

Nonlinear dynamical model of an automotive dual mass flywheel

Nonlinear dynamical model of an automotive dual mass flywheel

Modeling of piezoelectric stack actuators considering bonding layers

Design and experimental characterization of an electromagnetic transducer for large-scale vibratory energy harvesting applications

Contact Info

Product

Resources

About