Vibration

contribute to this quality. When vehicles travel on the irregular roads, they are always subjected to excitation from braking, acceleration and inertial forces on a curved track, which causes discomfort to the driver. The excitation sources for these vibrations can be road roughness, wheel assembly, driveline excitation, engine excitation, aerodynamic forces and transmission excitation. Usually, road roughness will be the major source that excites the car body through wheel assembly…

invisible vibrated particles through the air. The moving vibrations cause the air around to also vibrate creating sound waves that radiate outwards from the main source. The sound reaches the ear pinna to then send the vibrations down the ear canal and onto the eardrum. This creates vibrations on the Ossicles (malleus incus and stapes). The vibration triggers the ossicles to vibrate…

and how sound work. Sound is a release of energy the energy is released in the form of vibrations . How sound work is the vibrations emit from whatever has made the sound in what is known as a longitudinal wave.A longitudinal wave is a wave that travels in a single direction. Next how can we hear sound. We can hear sound from a longitudinal wave for example when a tree falls and energy is released vibrations are created and a longitudinal wave is sent out but anyone might not hear the sound.…

concerned with the study of sound. Sound is a wave made of vibrations in the air. Waves can be measured in a range of different ways: by their amplitude, wavelength, frequency, speed, and, at times, their phase. Sound information is transmitted by the amplitude and frequency of the vibrations, where the amplitude is experienced as loudness and frequency as pitch. The vibration is started by some mechanical movement and this causes a vibration on the molecules next to the mechanical event. When…

wearable T-shirt that includes different ultra-sonic sensors and very small vibrating motors to measure the distance between the blind and the object from different sides and then after some calculations it formulate a decisions that translate it to vibrations to assist blind to know shape of the object and sense it [4], [5].. The blind Aid T-shirt divided into three smart levels; top level, Intermediate level, and bottom…

Sound waves are just different series of pressure(6). This is due to air being compressed, Peter Riley’s book, “Sound and Vibrations” the only ways to measure sound waves is through amplitude, frequency, and wavelength. Wavelengths that are short have many waves per second, while longer one has fewer waves per second(14). Frequency is the rate that sound waves are produced(14)…

hit our eardrum, known as the tympanic membrane, and cause it to vibrate. Once past our eardrums the sound/vibration has entered the middle ear. The middle ear is a small cavity embedded in the temporal bone of our skull. The first thing the vibrations will hit will be one of three ossicles (tiny bones) called the malleus. It is notorious for its hammer shape. Keep in mind that the vibrations are amplifying as they move on the ossicles. The second ossicle is the incus which is notorious for its…

not only use their large ears to capture frequencies of sound, but they also use fatty cushions in the feet pads to detect vibrations by bone conductions. Whales abandoned their external ears to be able to swim faster, but they have also enhanced their hearing due to the exceptional way…

2.1. C. tomentosum extract characterization C. tomentosum extract proximal composition is shown in Table 1. The relatively higher ash proportion in seaweed extract (SE) (aprox. 74%) could largely be accounted for by the lower moisture content, and probably due to a hygroscopic nature of the SE (Blanco-Pascual, Montero, & Gómez-Guillén, 2014). The values of TPC and DPPH radical-scavenging activity are consistent with literature (Andrade et al., 2013; Valentão et al., 2010) (Table 1). POD and PPO…

In the same manner, the breakage of rock during an earthquake produce vibrations called seismic waves that radiate outward from the point of fracture. Provided that, the instrument used to record and measure these vibrations is called a seismograph ( EarthquakesCanada, 2013 ). About 132 A.D. , Chang Heng, a Chinese astronomer and mathematician, invented the first seismometer. ( Duncan, 2014). For…