Vibration Control in Machines and Structures Using Viscoelastic Damping

Silica Nanoparticle Reinforced Composites as Transparent Elastomeric Damping Materials

“…Finally, to demonstrate the potential applications of the composite elastomer, the vibration-damping property was evaluated (Figure ). The vibration-damping performance is said to be the effect of friction between the filler and the matrix polymer, which dissipates the deformation energy as thermal energy. − In the composite elastomer filled with silica particles at intervals of a few nanometers, thermal energy dissipation due to shear strain among the particles and friction at the particle–polymer interface is expected. Therefore, an unconstrained composite beam was fabricated by attaching a composite elastomer to a steel beam (Figure a), and the loss factor obtained from the frequency response function when the center of this specimen was vibrated was compared .…”

Silica Nanoparticle Reinforced Composites as Transparent Elastomeric Damping Materials

“…Finally, to demonstrate the potential applications of the composite elastomer, the vibration-damping property was evaluated (Figure ). The vibration-damping performance is said to be the effect of friction between the filler and the matrix polymer, which dissipates the deformation energy as thermal energy. − In the composite elastomer filled with silica particles at intervals of a few nanometers, thermal energy dissipation due to shear strain among the particles and friction at the particle–polymer interface is expected. Therefore, an unconstrained composite beam was fabricated by attaching a composite elastomer to a steel beam (Figure a), and the loss factor obtained from the frequency response function when the center of this specimen was vibrated was compared .…”

Vibration damping characterization of linseed oil‐based elastomers for its effectiveness to attenuate structural vibration

“…around room temperature, they are very appropriate damping materials for practical applications. These elastomers can be employed in different damping configurations which provide highly effective noise and vibration control mechanism in numerous applications …”

Structural dynamic modification using additive damping

“…where f n is the generalised excitation and q n , the corresponding displacement, while m and k are the generalised mass and stiffness respectively. A review of the work on various analysis methods, is available (see Nakra 1976Nakra , 1981Nakra , 1984Nakra , 1996. The system loss factor may be obtained from (1) or by determining the ratio of energy dissipated per cycle to the maximum energy stored during a cycle (Ungar & Kerwin 1962).…”

Silica Nanoparticle Reinforced Composites as Transparent Elastomeric Damping Materials

“…Finally, to demonstrate the potential applications of the composite elastomer, the vibration-damping property was evaluated (Figure ). The vibration-damping performance is said to be the effect of friction between the filler and the matrix polymer, which dissipates the deformation energy as thermal energy. − In the composite elastomer filled with silica particles at intervals of a few nanometers, thermal energy dissipation due to shear strain among the particles and friction at the particle–polymer interface is expected. Therefore, an unconstrained composite beam was fabricated by attaching a composite elastomer to a steel beam (Figure a), and the loss factor obtained from the frequency response function when the center of this specimen was vibrated was compared .…”

Vibration damping characterization of linseed oil‐based elastomers for its effectiveness to attenuate structural vibration

“…around room temperature, they are very appropriate damping materials for practical applications. These elastomers can be employed in different damping configurations which provide highly effective noise and vibration control mechanism in numerous applications …”

Structural dynamic modification using additive damping

“…where f n is the generalised excitation and q n , the corresponding displacement, while m and k are the generalised mass and stiffness respectively. A review of the work on various analysis methods, is available (see Nakra 1976Nakra , 1981Nakra , 1984Nakra , 1996. The system loss factor may be obtained from (1) or by determining the ratio of energy dissipated per cycle to the maximum energy stored during a cycle (Ungar & Kerwin 1962).…”

Silica Nanoparticle Reinforced Composites as Transparent Elastomeric Damping Materials

“…Finally, to demonstrate the potential applications of the composite elastomer, the vibration-damping property was evaluated (Figure ). The vibration-damping performance is said to be the effect of friction between the filler and the matrix polymer, which dissipates the deformation energy as thermal energy. − In the composite elastomer filled with silica particles at intervals of a few nanometers, thermal energy dissipation due to shear strain among the particles and friction at the particle–polymer interface is expected. Therefore, an unconstrained composite beam was fabricated by attaching a composite elastomer to a steel beam (Figure a), and the loss factor obtained from the frequency response function when the center of this specimen was vibrated was compared .…”

Vibration damping characterization of linseed oil‐based elastomers for its effectiveness to attenuate structural vibration

“…around room temperature, they are very appropriate damping materials for practical applications. These elastomers can be employed in different damping configurations which provide highly effective noise and vibration control mechanism in numerous applications …”

Structural dynamic modification using additive damping

“…where f n is the generalised excitation and q n , the corresponding displacement, while m and k are the generalised mass and stiffness respectively. A review of the work on various analysis methods, is available (see Nakra 1976Nakra , 1981Nakra , 1984Nakra , 1996. The system loss factor may be obtained from (1) or by determining the ratio of energy dissipated per cycle to the maximum energy stored during a cycle (Ungar & Kerwin 1962).…”