The major source of vibrations in chest area is due to heartbeats. Linear low frequency and nonlinear mono-stable and bi-stable energy harvesters are designed according to especial signature of heart vibrations. The proposed energy harvesters are robust to variations of heart beat frequency and can...
Heartbeat-induced oscillations in the chest area are extracted from ultrasonic measurements in the literature and animal tests. The feasibility of using linear energy harvesting technologies at regular and microscales is investigated. To increase the frequency bandwidth of the energy harvester and to ...
Generally speaking, the first heart "sound" in a complete cardiac cycle is that which is phonetically and usually represented as "lubb." It seems to be the consensus that this sound is produced by vibrations set up by the 5 heart striking against the chest wall, augmented or modified ...
These sensors are placed on the surface of the chest to detect heart-induced local deformations. In the literature, works commonly refer to the cardiac FBG signal as an SCG when detected on the chest. The FBG-based systems, based on fiber optic technology, have the great advantage of ...
During car races, strong vibrations appear in the chassis of the vehicle, due to the high power created by the engine which are then transmitted and, therefore, affect the driver’s condition. The study of these vibrations is a subject frequently addressed by researchers, analyzing the influence...
In vehicles, the most promising application area for inerters is the suspension system. This novel system was first used in a Formula 1 race car in 2005, when the McLaren team applied an inerter for reducing the wheel vibrations at the rear axle [20]. Despite the existing research and ...