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Understanding the physical mechanism of intrinsic noise inside viscous isotropic solids.

ABSTRACT: We report acoustic impulse-response and system function of particle vibration inside viscous, dense solids and explain the physical mechanism of intrinsic-noise generation. With an external disturbance of a harmonic force acting on particles inside viscous solid media, the system of particle vibration goes through a gradual transition from a static state to a steady harmonic vibrational state. Based on the damped oscillator model, the transition frequency spectrum resembles the intrinsic noise generated by vibrating particles in viscous isotropic solids, which delivers a crucial understanding for applications to invert stratum characteristics around the drilled oil well and its abnormal geological structure.

SUBMITTER: Fa L

PROVIDER: S-EPMC9508097 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

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Understanding the physical mechanism of intrinsic noise inside viscous isotropic solids.

Fa Lin L Wang Yimei Y Gong Hong H Liu Dongning D Jiang Jing J Li Lili L Liang Jifeng J Sun Hao H Zhang Yandong Y Zhao Meishan M

Scientific reports 20220923 1

We report acoustic impulse-response and system function of particle vibration inside viscous, dense solids and explain the physical mechanism of intrinsic-noise generation. With an external disturbance of a harmonic force acting on particles inside viscous solid media, the system of particle vibration goes through a gradual transition from a static state to a steady harmonic vibrational state. Based on the damped oscillator model, the transition frequency spectrum resembles the intrinsic noise g ...[more]

PMID: 36151467

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