PPT-aLIGO QUAD "Level 2" Damping Loop Design

Supplemental to LLO aLOG 6949 J Kissel G1300537v2 1 G1300537v2 2 aLIGO QUAD Level 2 Damping Loop Design Mission Statement The damping loops installed during the SUS testing phase . Response to Damping As we saw the unfor ced damped harmonic oscillator has equation 0 1 with 0 0 and 0 It has characteristic equation 2 0 with characteristic oots 2 2 Ther e ar e thr ee cases depending on the sign of the expr ession u Natural frequency and damping ratio Well consider the second order homogeneous linear constant coe57358 cient ODE bx cx with positive spring constantmass In the absence of damping term this spring constant wo 1. Type I. Type II. Type. III. Part A. Liquid. epoxy resin (LER). WB. epoxy dispersion. WB. acrylic latex. Part B. WB amine hardener. WB amine hardener. WB. epoxy dispersion. New Technology: Acrylic-Epoxy Hybrids. \begin{tabbing}Program\quad\=:\=\TeX\\[5pt]Author\:\DonaldKnuth\\[5pt]Manuals\:\\\pushtabs\quad\=TheAdvanced\TeX\Book\quad\=DavidSalomon\quad\=Springer-Verlag\kill\\\\textsf{Title}\\textsf{Author Sec. . 4.6b. Exploration 1: Investigating Sinusoids. Graph these functions, one at a time, in the viewing window. . Which ones appear to be sinusoids?. Only these functions appear to be sinusoids!!!. General . L. inear . B. eam Dynamics. S. Guiducci, INFN-LNF. Seventh International Accelerator School for Linear Colliders . Hosted by Raja . Ramanna. Centre for Advanced Technology. 4 December 2012. DRIVER VARIATIONS:The larger the driver the more import electrical damping is. Low frequency drivers andsubwoofers have the most problems regarding damping. Their moving mass is quite high andtheir su DAMPING TORQUE. Air Friction . Damping. Fluid Friction . Damping. Eddy Current . Damping. Electromagnetic . Damping. K-12EL-09. K-12EL-57. Super vision By:. Sir . Sajid. . Hussain. . Qazi. The damping force ensures. Typically, harmonic motion decreases in amplitude with time….this realistic model describes damped harmonic motion.. The damping effect is a result of friction and internal resistance of the system to further motion.. Good Vibrations:. Standing waves can be produced on a string fixed at both ends if the length of the string . L. is a multiple of half the wavelength . l. ,. so that the ends of the string are nodes. These waves are called “harmonics” and are identified by “. RAM 7 Workshop. November 4 & 5, 2014. Nick Oosting. Roush Industries. Nick.oosting@roush.com. Overview. . Background. RAM 6 Workshop, October 2013. “Noise and Vibration Control with Constrained Layer Damping Systems”. Engineering: B.4, pages 582-588. Free Vibration. A mass is free to oscillate. No external forces acting on the mass. Amplitude, frequency, period…all constant. Natural Frequency (. f. 0. ). The frequency of the free vibrations of a system. . is a dissipation . of. . energy from a vibrating structure. .. The . term dissipate is used to . mean. . the transformation of . mechanical. . energy into other form of energy and, therefore, a removal . CSE 351 Winter 2018. Instructor:. . Mark Wyse. Teaching Assistants:. Kevin Bi. Parker . DeWilde. Emily . Furst. Sarah House. Waylon Huang. Vinny . Palaniappan. http://xkcd.com/1652/. Administrative.