Notes on anelastic effects and thermal noise in suspensions of test masses in interferometric gravitational-wave detectors
نویسنده
چکیده
3 Anelasticity of solids 3 3.1 The complex Young modulus and the loss function . . . . . . . . . . . . . . . . . . . . 3 3.2 Simple models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3.2.1 Perfect elastic solid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3.2.2 Maxwell solid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3.2.3 Voigt-Kelvin solid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2.4 Standard anelastic solid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.3 Boltzmann’s superposition principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.3.1 Example: Standard anelastic solid . . . . . . . . . . . . . . . . . . . . . . . . . 8
منابع مشابه
Optimization of thermal noise in multi-loop pendulum suspensions for use in interferometric gravitational-wave detectors
We study the thermal-noise spectrum of multi-loop pendulum suspensions for test masses in interferometric gravitational-wave detectors. The dependence of the thermal noise on suspension parameters and on properties of the wire material is discussed for the situation in which the losses are dominated by the internal friction in the pendulum wires. PACS: 04.80.Nn; 05.40.Ca; 62.40.+i
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