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Supplier: IHS Product Design
Description: DESIGN ISSUES IN THE USE OF ELASTOMERS IN AUTOMOTIVE TUNED MASS DAMPERSShow More
Supplier: ASTM International
Description: variation. Honing tool and workpiece were assumed as a second-order system, i.e., a spring, mass and damper system in the modeling and analysis.Show More
Supplier: ASME Training & Development
Description: systems, rotating equipment, their supports and foundations, vibration absorbers (tuned mass dampers), vibration isolators, shock loads and shock spectra, earthquakes, transportation vibrations, fl ow-induced vibrations and vibration monitoring are all discussed. How to benchmark analytical results
- Type: Course
- Modality: Off Site (Conference / Seminar)
- Industry: Building / Construction, Nuclear / Utility
- Technology / Subject: Vibration & Shock
Supplier: Mars Metal Company
Description: such as dancing, aerobics, chanting or cheering Even the wind which can cause buildings to sway. These vibrations can generate unwanted structure-borne sound, and in severe cases can cause damage to the structure itself. Dampers can have several forms: seismic isolation dampers; tuned mass dampers
- Weight Types: Inertial (Damper, Flywheel) Weight
- Shape: Hook Weight
- Materials: Lead
Supplier: IHS ESDU
Description: so that the designer can assess rapidly the potential of each method for a particular application. The techniques covered include mass reduction of the links, dyad addition, addition of springs and dampers, use of a torsional-vibration isolator and use of a flywheel (which does not reduce peakShow More
Supplier: Fluid Components Intl. (FCI)
Description: in small diameter, "equal-mass," all-metal thermowells to provide superior accuracy, repeatability and fast response. Applications Wastewater treatment aeration control Burner and furnace air flow control HVAC duct/damper control Blower and dryer air flow control Lake, pond and aquaculture
- Type: Thermal Meter
- Process Media Type: Gas
- Pipe Diameter: 2 to 24 inch
- Operating Pressure: 0.0 to 500 psi
Standards and Technical Documents - NOX Reduction On Coal-Fired Units Utilizing Combustion Airflow Measurement And Control - POWID 2007
Description: coal flow measurement to adjust air to fuel ratios. For the Lee 3 project, the DCS was also modified to allow control of mass flow of air to each overfire air port as well as air to fuel ratio control of each burner. This was accomplished by utilizing the burner secondary air disk to control burnerShow More
Supplier: RS Components, Ltd.
Description: The microbridge mass airflow sensor operates on the theory of heat transfer. Mass airflow is directed across a surface of a sensing element. Output voltage varies in proportion to the mass air or other gas flow through the inlet and outlet of the unit. Precision silicon micromachining. Sensitive
- Process Media Type: Gas
- Pipe Diameter: 0.2460 inch
- Gas Volumetric Flow Rate: 2.12 SCFM
- Liquid Volumetric Flow Rate: 15.85 GPM
Description: This specification with damping over the complete stroke contains only oil. Due to the construction, there will be a small slip when the piston rod is pulled out. The push-in and push-out speed – i. e. the effective slowing down (motion control) of the movement of a mass – can
- Absorber Stroke: 0.3937 to 39.37 inch
- Cylinder Diameter or Maximum Width: 0.3150 to 2.76 inch
- Rod Diameter: 0.1181 to 1.18 inch
- Mounting: Ball and Socket, Clevis, Eyelet, Threaded, Other
Supplier: Vibrant Technology, Inc.
Description: Includes the VT-560 Visual SDM Pro package plus VES-9000 Finite Element Model Updating Options. This package finds the 10 Best solutions that update properties of an FEA model so that its modes more closely match a set of experimental modes. Property changes include mass, spring, and damper changesShow More
Supplier: MAYA Heat Transfer Technologies Limited
Description: ) Thin shell (SHELL63/93/91/99/181) Solid elements (SOLID45/92/95/186/187/191 SOLSH190) Surface-to-Surface Contact elements (CONTA174/ TARGE170) Rigid, constraint, spring, damper, gap and mass elements (CP, CE, CERIG, MPC184, COMBIN14, COMBIN40, CONTAC12, CONTAC52, MASS21) Pretension elementsShow More
Supplier: Servoflo Corporation
Description: The PMF1000 Series mass flow sensor is a passive device comprised of POSIFA's robust and high-performance thermal flow die, a ceramic substrate, and a flow path housing supporting air flow ranges from 10 sccm to 3000 sccm, bi-directional. The PFM1000 series is designed for customers who want
- Mounting: Fixtured or Permanent
- Air Volumetric Flow: Yes
- Technology Type: Thermal Anemometer
- Air Volume Flow Rate Range: 3.53E-4 to 0.1059 SCFM
Supplier: U.S. Dynamics Corporation
Description: construction. Its principal components include a motor, signal generator, torque generator and viscous damper. The symmetrical synchronous hysteresis type motor is isoelastically mounted within a hermetically sealed float which rotates on jeweled bearings. The 416 employs a dualsyn, a combination
- Type: Spinning Mass
- Angular / Rotary Axes: Uniaxial
- Angular Rate Range: 20 rpm
- Linearity: 1 ±% Full Scale
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ITT Enidine Inc.
Turnstile Shock Absorber Applications
over a long period of time delivering energy absorption to the turnstile mechanism. (view article on line here: http://www.enidine.com/News/Product-Spotlight/Turnstile-Applications/ ). During development of a wheelchair accessible variation of a turnstile it was discovered that the shock absorber did not provide enough resistance to the increased mass and forces being applied during its operation. The gear train is common with the standard turnstile, so redesigning the unit for a larger type... (read more)
Browse Shock Absorbers, Linear Dampers, and Dashpots Datasheets for ITT Enidine Inc.
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Spend Your Time Engineering, Not on Differential Equations
with something as simple as a spring-mass-damper system, for example, users must draw the free body diagram and then generate the governing equations between the physical components. Next, users must derive the differential equations for the system, convert them to integral form, and, finally, break
Whole lot of shakin' goin' on
, there is relative motion when the frequency of a noise source coincides with a mechanical resonance. The amount of relative motion depends on the input noise level and the mechanical gain or amplification at resonance. The mechanical structure can be modeled as a second-order, mass-damper-spring
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Fig. 4.105 a Linear graph of a mass damper system with dampers, b1 and b2 , in series. b Linear graph of the equivalent system with a single equivalent damper in place series dampers, .
Structural Motion Engineering
Topics covered include optimal stiffness distributions for building-type structures, the role of damping in controlling motion, tuned mass dampers , base isolation systems, linear control, and nonlinear control.
Advances in Structural Engineering
Shape Memory Alloy-Tuned Mass Damper (SMA-TMD) for Seismic Vibration Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schematic design of distributed mass damping systems for tall buildings
This has led to the development of motion control devices, such as the Tuned Mass Damper (TMD) and Tuned Liquid Column Damper (TLCD).
The special theory of the tuned mass damper has been given a comprehensive treatment, as this is a theory not fully covered elsewhere.
Element and system design for active and passive vibration isolation
Most passive damping techniques increase ground transmission at high frequency, but tuned- mass dampers are decoupled from the ground.
Passive and active control of structures
Tuned Mass Dampers ..........