Summary of Session 2: Vibration measurements

Slides:

Advertisements

Similar presentations

Passive isolation: Pre-isolation for FF quads A. Gaddi, H. Gerwig, A. Hervé, N. Siegrist, F. Ramos.

Advertisements

Sound. Sound Waves  Sound waves are longitudinal waves.  The source of a sound wave is a vibrating object.  Only certain wavelengths of longitudinal.

Vibrations & Waves Advanced Physics Presentation.

Chapter 25 Vibrations and Waves

Sound and Hearing. Sound Waves Sound waves are mechanical and longitudinal waves What does this tell you about sound waves? Sound waves need a material.

Structure of Atoms Rutherford's model of the atom was a great advance, however, it does not give an satisfactory treatment of the electrons. To improve.

Lecture 2: Wave Phenomena II and Adding up waves.

1 BROOKHAVEN SCIENCE ASSOCIATES Nick Simos NSLS2 Ground Motion and Vibration Studies.

Stability of Mechanical Systems S. Sharma and V. Ravindranath.

1 BROOKHAVEN SCIENCE ASSOCIATES Nick Simos NSLS2 Ground Motion and Vibration Studies.

Effects of the cryogenics operational conditions on the mechanical stability of the FLASH linac modules Ramila Amirikas, Alessandro Bertolini, Jürgen Eschke,

Parameters, pulse parameters, attenuation, and resolution.

Lecture 11 Wave Motion. Sound Waves.

Jeopardy Jeopardy PHY101 Chapter 6 Review Study of Waves.

1 BROOKHAVEN SCIENCE ASSOCIATES Conventional Facilities & Beam Stability Marty Fallier Director for Conventional Facilities NSLS-II Beam Stability Workshop.

1 Sound Propagation in Different Environments What is Sound? Free Field Sound Field Rooms Sound in Motion.

Waves. Deep Impact video snippet Notice the ripple formed when the comet hits the ocean How do you think the energy of the impact reached the land and.

MECHANICAL WAVES WAVE PROPERTIES SOUND…“WHAT?”

Projectiles Horizontal Projection Horizontally: Vertically: Vertical acceleration g  9.8 To investigate the motion of a projectile, its horizontal and.

R. Field 11/26/2013 University of Florida PHY 2053Page 1 Sound Waves: Doppler Effect Doppler Shift: If either the detector or the source of sound is moving,

12.3 Properties of Waves pp Mr. Richter.

Waves and Sound Review. #1 Transverse Wave Crest Trough Amplitude Home Wavelength.

Properties of Waves. Mechanical Waves Mechanical wave requires a medium – such as rope, air, water or soil The wave begins at a source, this causes molecules.

Essential Question: How does data collected provide evidence that the amount of energy a wave carries determines the properties of a wave?

Week.  Student will: Wave Properties  Demonstrate Wave Properties.

Vibration Stability Studies of a Superconducting XFEL/ILC Accelerating Module at Room Temperature and at 4.5K R. Amirikas, A. Bertolini, W. Bialowons.

Physics of Music (PHYSICS 198) Dr. Anatoli Frishman Web Page:

CEA DSM Irfu SIS 9th stabilization meeting Status of pole tips measurement.

1 SiD Push-pull Plans Marco Oriunno, SLAC International Workshop on Linear Colliders 2010 Geneva, October 2010 M.Oriunno, IWLC10 – Geneva, Oct.2010.

What is light? Light can act either like a wave or like a particle Particles of light are called photons.

Sediment Properties and the Acoustic Field in a Three-layer Waveguide David Barclay AOS seminar June 1st, 2006.

How high frequency we care if we need the stabilization of 1nm level?

26.1 The Origin of Sound What is the source of all sound?

L35-s1,12 Physics 114 – Lecture 35 Chapter 12 Sound Parameters associated with our sense of hearing: note sound → longitudinal waves propagated in a medium.

The Doppler Effect Introductory Video as a sound source moves towards you it appears to have a higher frequency than normal as the source moves away it.

1 BROOKHAVEN SCIENCE ASSOCIATES Beam Stability Overview NSLS-II CFAC Meeting May 8, 2007 S. Krinsky.

Vibrations & Waves Advanced Physics. What is a wave? A progressive disturbance propagated from point to point in a medium or space.

Summary of Presentation 1. Tolerances i. Vertical tolerances on BPMs (rf-BPM: ± 0.2μm, user BPMs: ±0.1μm, and X-BPMs: ± 0.1μm) ii. Tolerances on magnets’

PROPERTIES OF WAVES. Waves A wave is a means of transferring energy and information from one point to another without there being any transfer of matter.

BNL-SLAC-Annecy TeleConference

Mechanical Waves.

The Doppler Effect THE LAST LECTURE.

Do Now: 1. A 6kg bowling ball is dropped off a roof 9 meters high into a tub of chocolate pudding. How far has it fallen when it’s velocity is 10 m/s?

Physics of Music (PHYSICS 198)

Physics 7E Prof. D. Casper.

EuroTeV WP7 activities in DESY

Status of Vibration Measurement Work at BNL

Summary of session 1.

Aim: What properties define wave classes?

The Storage Ring Control Network of NSLS-II

Estimation of the orbit feedback performance for HEPS

(Based on medium) 2. Mechanical Waves

Summary of Session 5 Other Vibration Source

Component: E Local quakes Broad frequency Two tremor bursts

The Nature of Electromagnetic Waves

Sound and Hearing it.

Preliminary design of foundation for HEPS

Harmonic Motion and Mechanical Waves

Ch. 12 Waves pgs

A car is decelerated to 20 m/s in 6 seconds

Sound and HOW WE Hear it.

Other terms related to a periodic wave

PHY138 – Waves, Lecture 1 New instructor for November and December

Wave Properties.

Final Review part Two.

Sound and Hearing it.

Chapter 15 Notes Sound.

Presentation transcript:

Summary of Session 2: Vibration measurements Convener: Lin ZHANG (SLAC) Location: C305 14:00 NSLS-II Site Vibration Measurements and Girder Support System Design for Mechanical Stability 40' Speaker: Charles Spataro (BNL) 14:40 Ambient Ground Motion Measurement and the Preliminary Analysis for HEPS 30' Speaker: Fang YAN (IHEP) 15:10 Mechanical Stability Issues in SSRF Storage Ring 40' Speaker: Rongbing Deng (SINAP)

Highlights Ground vibration measurements Source identification Versus time: day, week, weekend (NSLS-II, ESRF, but not SSRF) Spectral: peak at 3 Hz Source identification Decay with distance (NSLS-II, HEPS, ESRF) Traffics Utilities (pumps, air conditioning,…) (vibration isolation, distance) Magnet-Girder Assembly NSLS-II SSRF (f1=21 Hz) Thermal stability in Storage ring tunnel NSLS-II: ±0.75C SSRF: ±0.2C

Discussion and Suggestions Measurement instruments Sensors: geophone,… DAC Data processing Spectral analysis Results comparison validation “Round robin” Gound vibration properties Vibration spectra Wave propagation speed Soil parameters: E, ν Magnet-Girder design Great care on Girder design Care should be taken on magnet support design Source identification Advanced spectral analysis can give much information

Vibration propagation Mechanical (air) acoustic  ground (Helicopter flying over Soleil site, 1996) Spectrogram of vertical acceleration (dB.µm/s2) Doppler Effects : X 10 Vs : sound speed Δf/f ~ 1/8  Vhelico ~ 42 m/s ~ 151 km/h X 3 ISDD Friday lecture: Vibration & mechanical stability / L. Zhang, 9-April-2010