A three-dimensional, two-part model of the foot, for use in a simulation of human gait, is presented. Previous simulations of gait have not included the foot segment (e.g. Siegler et al., 1982, J. Biomechanics 15, 415-425) or have fastened it to the ground (e.g. Onyshko and Winter, 1980, J. Biomechanics 13, 361-368). A foot model based on viscoelastic elements (e.g. Meglan, 1991, Ph.D. thesis, ...

In MR elastography, it is common to use an elastic model for the tissue's response in order to interpret the results properly. More complex models, such as viscoelastic, fractional viscoelastic, poroelastic, or poroviscoelastic ones, are also used. These models appear at first sight to be very different, but here it is shown that they may all be expressed in terms of elementary viscoelastic mod...

The pounding tuned mass damper (PTMD) is a novel vibration control device that can be used for many different structures. The PTMD utilizes a viscoelastic delimiter to enhance its vibration control effectiveness and robustness though pounding between the tuned mass and the viscoelastic material. However, the viscoelastic material is subjected to repeated poundings during its service life, which...

A new approach to the deformation modeling of viscoehwtic objects for their shape control is presented. Manipulative operations of viscoeiastic objects can be found in many industrial fields such as food indust~ and medical product industry. Automatic operations of viscoelastic objects are eagerly requirwd in these jields. Since viscoelastic objects deform during operation processes, it is nece...

Magneto-rheological dampers (MR-Dampers) are increasingly being used in construction applications to reduce the dynamic response of structures seismic activities or severe wind loading. Sensors attached structure will signal computer supply with an electric charge that transfers MR fluid a near-solid material different physical and mechanical properties (viscoelastic behavior). Control algorith...

The mechanical properties of viscoelastic (VE) dampers directly affect the aseismic performance viscoelastically damped structures; therefore, it is great significance to accurately describe nonlinear characteristics VE in design and analysis structures. However, most existing mathematical models for have been established from a macroscopic perspective, there general lack comprehensive connecti...

As an important member of smart materials, magnetorheological elastomers (MREs) exhibit characteristics that their modulus can be controlled by an external magnetic field. Based on these experimental results, a viscoelastic solid model with four parameters was proposed to predict the performance of MRE. A building model, three stories high, was constructed using MATLAB SIMULINK to evaluate the ...

The fractional derivative (FD) model is one kind of numerical viscoelastic (VE) damper, which can describe the behavior frequency sensitivity VE damper well with some empirical parameters. However, FD difficult to apply practice design because its complex calculation. Compared model, integer (ID) models are widely used as equipped in high-rise building. ID lack consideration sensitivity, signif...