There are other devices like NightBalance, a wearable device that regularly measures its user's sleep positions and lightly vibrates for them to subconsciously shift to a healthier position, thereby helping manage sleep apnea disorders.
Lightly damped vibrating structures normally exhibit vibration patterns that are a combination of standing waves, i.e. mode shapes.
Model Predictive Vibration Control provides insight into the predictive control of lightly damped vibrating structures by exploring computationally efficient algorithms which are capable of low frequency vibration control with guaranteed stability and constraint feasibility.
The double linearization theory deals with both steady and unsteady components of disturbances on the basis of a linearized approximation on the assumption that the cascade is lightly loaded and vibrating with an infinitesimal displacement amplitude.
These take center stage, seeming to vibrate on and under the paintings' lightly brushed surfaces.
With the help of a small propellor or vibrating cable on each guitar, each motor lightly strums a different chord, creating a mesmerizing dissonance.
4moms Mamaroo 3.0: £259.95, johnlewis.com This state-of-the-art piece of kit mimics the natural motion of parents; lightly bouncing and swaying, rather than vibrating or swinging.
The cylinder is mounted on lightly damped, flexible supports and allowed to vibrate, both in the in-line and cross-flow directions under the action of aerodynamic forces.
A fire-polished glass pipette, lightly touching the surface of the VTA, was vibrated horizontally at 50 60 Hz for 1 2 min by a home-made device.
When the lightly-damped oscillator is given an initial condition, such as if the kg mass is pulled away from its resting position to m and released, the mass will vibrate back and forth (see Figure 2, top).
