(DOWNLOAD) "Control of Dynamic Motion" by Wayne Tustin, Deepak Jariwala & Jaime Boscá # Book PDF Kindle ePub Free
eBook details
- Title: Control of Dynamic Motion
- Author : Wayne Tustin, Deepak Jariwala & Jaime Boscá
- Release Date : January 11, 2013
- Genre: Engineering,Books,Professional & Technical,Education,
- Pages : * pages
- Size : 101899 KB
Description
ebook 5 deals with a situation which might trouble you someday ... too much vibration.... a situation in which vibration must be controlled (reduced, lessened). Try this approach first: reduce vibration at the source, as succeeded on London’s Millennium Bridge. Another example: troublesome vibration from or on a machine may be due to unbalanced rotating members. Let’s try dynamic balancing (as with balancing the wheels on your automobile) to reduce the vibratory force that is generated. ebook 11 discusses balancing.
If we can’t lessen the force, perhaps we can absorb vibratory energy at or close to the actual source, so that energy cannot reach radiating surfaces or sensitive equipment. If the troubling vibration is concentrated at a single frequency, consider attaching a tuned dynamic absorber per ebook 19.
Or consider the untuned, broadband “Lodengraf” damping announced in Sound Vibration July 2000. This uses low density granular material coupled to structures to reduce structureborne vibrations. Much lighter than sand or lead shot, these materials have low sound speed, hence are effective.
5.1 Too much vibration
5.2 Absorb vibratory energy
5.3 Treat the path
5.4 Interrupt path with passive isolation
5.5 COTS equipment
5.6 Avoid too-soft isolators
5.7 Isolating shakers
5.8 Elastomeric and metallic isolators
5.9 Force/deflection curve
5.10 Locating the isolators
5.11Damping creates difficulty
5.12 Pneumatic isolators
5.13 Active vibration isolation
5.14 Reduce ambient vibration how much?
5.15 Passive dynamic absorbers
5.16 Tips for designers
5.17 Redesigning with lesser “Q”
5.18 Long-stroke isolation for shipboard shock protection
5.19 Active isolation for shipboard shock protection
5.20 Isolating switchgear cabinets
5.21 Seismic isolation of buildings and bridges
5.22 PWB ruggedizing without redesign
5.23 Preview of ebook 6