Vibration damper for high voltage cables

In a system for damping Aeolian vibrations in a cable suspended between two points wherein damping is attained by means of a damper connected to said cable at a position near one point of suspension and remote from the other point of suspension, the improvement wherein said damper comprises:

• an inertial member, and two resilient support members separately connecting said inertial member to separate points of said cable,
• each said resilient support member having a clamp rigidly connected said damper to said cable, and also having a resilient member having a first end connected to said inertial member and a second end connected to said clamp, and
• two rubber-like material tubular members, each such tubular member being compressively nested inside the respective resilient members.

In a system for damping Aeolian vibrations in a cable suspended between two points wherein damping is attained by means of a damper connected to said cable at a position near one point of suspension and remote from the other point of suspension, the improvement wherein said damper comprises:

• an inertial member, and two resilient support members separately connecting said inertial member to separate points of said cable, and each said resilient support member comprising a coupling having a C-shaped structure at one end and having an elongated structure at a second end formed integrally with said C-shaped structure, and
• a toroidal spring arcuately nested along the inner surface of said C-shaped structure for gripping said suspended cable,
• each said coupling being positioned to have the axis of revolution of said spring about parallel to said cable.

In a device for damping Aeolian vibrations of a suspended cable:

• a free vibratory inertial member,
• two and only two separate spaced-apart clamp members adapted to asymmetrically connect said inertial member to separate points on said cable, each said respective clamp member being shaped to partially embrace said suspended cable at a plurality of points distributed over more than half the perimeter of said cable including its top and bottom and at least one side thereof, and
• two resilient members connecting the respective clamp members to said inertial member between the ends thereof.

In a device for damping Aeolian vibrations of a suspended cable:

• an inertial member,
• two separate spaced-apart clamp members for asymmetrically connecting said inertial member to separate points on said cable,
• two resilient members connecting the respective clamp members to said inertial member respectively, each of said resilient members having an interior portion, and further comprising two tubular members composed of rubberlike material, each such tubular member being compressively nested within the interior portion of the respective resilient members.

In a device for damping Aeolian vibrations of a suspended cable, the improvement comprising:

• a damper having a free vibratory inertial member and having two and only two resilient support members external to said inertial member, said resilient support members having lower ends connected to points of said inertial member between the ends thereof, said resilient support members comprising separate means at the ends thereof remote from said inertial member for separate connection of said resilient support members to separate points of such suspended cable by externally gripping said cable at points distributed over more than half the perimeter of said cable and without forming a passage through said cable, whereby said damper may hang from said cable when connected thereto by said resilient support members with said inertial member at the lower end thereof.

In a system for damping Aeolian vibrations of a cable suspended between two points, the combination with said cable of a free vibratory inertial member in a position beneath said cable, first and second resilient members external to said inertial member, each being separately attached to a separate point of said inertial member between the ends thereof and to said cable, the point of connection of said first resilient member to said cable being spaced from the point of connection of said second resilient member to said cable.

A resilient support member adapted for connecting an inertial member to a cable suspended between two points to form a damper for dampening Aeolian vibrations of the cable, the resilient support member comprising:

• a clamp portion adapted to partially surround said suspended cable about its top, bottom, and at least one side thereof,
• a resilient portion having at least one tubular spring member adapted for connection at a first end to said clamp portion and connected at a second end to said inertial member, and
• a rubber-like tubular member compressively nested inside said tubular spring member.

A resilient support member adapted for interconnecting a cable suspended between two points and an inertial member to form a damper for dampening Aeolian vibrations of the cable, the resilient support member comprising:

• a C-shaped clamp portion having a toroidallyshaped spring that is arcuately nested along the inside surface of said clamp portion, said spring being secured therein by a T-shaped retention stud extending inwardly from said inside surface at a location at about the midpoint of said C-shaped clamp portion and by two reversely folded flanges extending from the respective end points of said C-shaped clamp in a direction about parallel to said C-shaped clamp, the opposed ends of said spring each partially surrounding one of said folded flanges;
• and
• a stem portion formed integrally with said C-shaped clamp portion and having a leg member extending tangentially from said C-shaped clamp portion and having a foot member attached to an extending substantially transverse to said leg member.

A resilient support member adapted for connecting an inertial member to a cable suspended between two points to form a damper for dampening Aeolian vibrations of the cable, the resilient support member comprising:

• a C-shaped clamp having a hook portion adapted to partially surround said suspended cable about its top, bottom, and at least one side thereof and adapted to press downwardly on the upper surface of said cable,
• a resilient support portion having at least one toroidal spring member arcuately nested along the inside surface of said C-shaped clamp, and
• a leg member rigidly connected to said C-shaped clamp and extending transversely relative to said C-shaped clamp to support said inertial member.