Search results
Results From The WOW.Com Content Network
A Fast Falling Weight Deflectometer (FFWD) is a FWD with pneumatic or electric actuators rather than hydraulic, making the mechanics several times faster. A Heavy Weight Deflectometer (HWD) is a falling weight deflectometer that has higher loads (typically 300 kN to 600 kN), used primarily for testing airport pavements.
Falling weight deflectometer, in civil engineering; Fixed wireless data, in telecommunications; Four-wheel drive (often 4WD), of motor vehicles; Free World Dialup, a voice over IP network; Front-wheel drive, of motor vehicles
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
Heavy Weight Deflectometer, a model of pavement test device This page was last edited on 12 February 2023, at 13:52 (UTC). Text is available under the Creative ...
The driving power from the falling weight is about 12 mW, so there is a substantial excess of power used to drive the escapement. Much of this energy is dissipated in the acceleration and deceleration of the frictional "fly" attached to the escape wheels.
1940s flexural test machinery working on a sample of concrete Test fixture on universal testing machine for three-point flex test. The three-point bending flexural test provides values for the modulus of elasticity in bending, flexural stress, flexural strain and the flexural stress–strain response of the material.
I am interested in possibly purchasing a FWD and/or a RWD. I would need information about possible suppliers, costs, technical workings etc. thank you customsuperfly152@hotmail.com —Preceding unsigned comment added by 142.176.155.50 ( talk ) 17:59, 4 December 2008 (UTC) [ reply ]