18. A two-stage transmission is given where: the first stage is a toothed transmission (z1 20, Z2 = 50), while the secon

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18 A Two Stage Transmission Is Given Where The First Stage Is A Toothed Transmission Z1 20 Z2 50 While The Secon 1 (118.43 KiB) Viewed 30 times

18. A two-stage transmission is given where: the first stage is a toothed transmission (z1 20, Z2 = 50), while the second is a tooth-belt transmission where gears are: z3 = 12, z4 = 6. The second stage has a fan with 10 blades, in which one of them is half broken. The system is driven by an electric motor connected to the stages of the first gear and rotating at a speed of: 1200RPM. * (4 Points) In the spectrum of the vibration signal, the phenomenon of narrowband frequency modulation will appear in the form of side fringes spaced from the toothing frequency of the toothed belt by 16 Hza 9 In the spectrum of the vibration signal, the phenomenon of amplitude modulation will appear in the form of side fringes spaced from the meshing frequency of the toothed belt by 16 Hz In the spectrum of the vibration signal, the phenomenon of amplitude modulation will appear in the form of side fringes spaced from the fan operating frequency by 4 Hz 19. What would be the right approach to diagnose the original steel bridge in its structure? * (1 Point) The use of modal analysis Data driven approach Model-based diagnostics based on a scaled model made in the modern fast / rapid prototyping technique Use of the analytical model of the bridge structure together with an attempt to verify it.