Table of Contents
How do I reduce my aeolian vibration?
Combating Aeolian Vibration
- There have been a number of designs of dampers or damping mechanisms to reduce the severity of Aeolian vibration.
- The Stockbridge damper is intended to be located on a node (area of maximum conductor motion) for at least one of the likely resonant frequencies of a given span.
What are two types of vibration dampers?
Types of Vibration Damping for Machines
- Unconstrained Damping: This is basically when a pad of Sorbothane is created for moving parts of the machine.
- Constrained Damping: In this type of vibration damping, the viscoelastic damping material is lined with a thin piece of flexible metal.
What is good vibration damping?
Rubber. Rubber is an ideal material for vibration damping applications. It absorbs energy before re-releasing it into the environment as heat, which helps quickly isolate vibration. While it doesn’t have true damping abilities on its own, it can be a powerful tool when paired with other materials.
What are vibration dampers used for?
Vibration dampers are used to absorb vibration emanating from machinery, pedestrian traffic, etc. primarily to reduce the noise associated with such vibration and to procure a more comfortable environment.
What causes Aeolian vibration?
Aeolian vibration is a type of motion caused by wind on conductors and overhead shield wires of transmission and distribution lines.
How does a Stockbridge damper work?
The Stockbridge damper targets oscillations due to aeolian vibration; it is less effective outside this amplitude and frequency range. Aeolian vibration occurs in the vertical plane and is caused by alternating shedding of vortices on the leeward side of the cable.
What is aeolian vibration?
Aeolian vibration, which is the subject of this paper, is associated with smooth (non-turbulent) winds in the range of 2 MPH to 15 MPH, and can occur on a daily basis. In contrast to galloping and sub-conductor oscillations, aeolian vibration is characterized as high frequency, low amplitude motion.
How many damping methods are there?
There are four ways of producing damping torque, and they are: Air friction damping. Fluid friction damping. Eddy current damping.
How does a balancing damper work?
Balancing dampers alleviate pressure imbalances by adjusting their blades to the correct angle. Technicians check the air pressure in the room as they adjust the blades. Once the correct pressure is found, the blades are locked in place.
What is aeolian dust?
Aeolian dust (windblown silt and clay) is an important component in arid-land ecosystems because it may contribute to soil formation and furnish essential nutrients. Few geologic surfaces, however, have been characterized with respect to dust-accumulation history and resultant nutrient enrichment.
What is aeolian cycle?
Aeolian processes involve erosion, transportation, and deposition of sediment by the wind. These processes occur in a variety of environments, including the coastal zone, cold and hot deserts, and agricultural fields.