Abstract: A rope, a system and a method for measuring one or more properties of a rope. A property evaluation system for ropes can be deployed for a number of different applications including, but not limited to, moving lines, e.g., crane or winch and static lines, e.g., mooring lines, stays, etc., to evaluate physical properties of the ropes and, in some cases, to help evaluate structural health of the ropes. A sheave assembly (10) may transmit a signal into a rope (14) to measure at least one property of the rope. At least one sensor (25) may be coupled to or assembled in the rope to measure at least one property of the rope.

Abstract: A tow kit is disclosed having a thimble slider engaged with a plurality of tethers. The thimble slider may have a generally C-shaped body with a back portion and opposing end portions. The thimble slider may also have a channel formed within outer surfaces of the back and opposing end portions, and an elongated separator connected to an inner surface of the back portion and extending in a direction generally orthogonal to the back portion to define two portions. A tether can engage the channel to equally distribute weight applied to the two ends of the tether. A sling can engage the inner surface of the back portion. At least one other tether can engage the sling.

Abstract: A rope and a method of constructing the rope. The rope may be of 12×12 braided construction and include a core for its length. The rope includes a plurality of primary strands, and each of the primary strands includes a plurality of fibers which may be made of a high-friction material. The rope also includes a secondary strand surrounded by the plurality of primary strands. The secondary strand includes a plurality of fibers which may be made of a low-friction material.

Abstract: A rope and a method of constructing the rope. The rope may be of 12×12 braided construction and include a core for its length. The rope includes a plurality of primary strands, and each of the primary strands includes a plurality of fibers which may be made of a high-friction material. The rope also includes a secondary strand surrounded by the plurality of primary strands. The secondary strand includes a plurality of fibers which may be made of a low-friction material.

Abstract: A tow kit is disclosed having a thimble slider engaged with a plurality of tethers. The thimble slider may have a generally C-shaped body with a back portion and opposing end portions. The thimble slider may also have a channel formed within outer surfaces of the back and opposing end portions, and an elongated separator connected to an inner surface of the back portion and extending in a direction generally orthogonal to the back portion to define two portions. A tether can engage the channel to equally distribute weight applied to the two ends of the tether. A sling can engage the inner surface of the back portion. At least one other tether can engage the sling.

Abstract: A non-contact evaluation system for evaluating a rope. The system including a transducer and a processor. The transducer is spaced apart from the rope. The transducer configured to output an ultrasonic wave in a transverse direction towards a longitudinal location of the rope, such that at least a portion of the ultrasonic wave passes around a perimeter of the rope, receive the portion of the ultrasonic wave, convert the portion of the ultrasonic wave to a signal, and output the signal. The processor configured to receive the signal, and evaluate the rope based on the signal.

Abstract: A non-contact evaluation system for evaluating a rope. The system including a transducer and a processor. The transducer is spaced apart from the rope. The transducer configured to output an ultrasonic wave in a transverse direction towards a longitudinal location of the rope, such that at least a portion of the ultrasonic wave passes around a perimeter of the rope, receive the portion of the ultrasonic wave, convert the portion of the ultrasonic wave to a signal, and output the signal. The processor configured to receive the signal, and evaluate the rope based on the signal.

Abstract: A non-contact evaluation system for evaluating a synthetic rope. The system includes a first transducer, a second transducer, and a processor. The first transducer is located at a first position and configured to convert a first electrical signal into a wave directed toward the synthetic rope under test. The wave has characteristics such that at least of a portion of the wave passes around a perimeter of the synthetic rope. The second transducer is located at a second position opposite the first position and radially aligned with the first transducer. The second transducer is also configured to receive and convert the portion of the wave into a second electrical signal. The processor is configured to determine a structural health measure of the synthetic rope based on the second electrical signal.

Abstract: A rope and a method of constructing the rope. The rope may be of 12×12 braided construction and include a core for its length. The rope includes a plurality of primary strands, and each of the primary strands includes a plurality of fibers which may be made of a high-friction material. The rope also includes a secondary strand surrounded by the plurality of primary strands. The secondary strand includes a plurality of fibers which may be made of a low-friction material.

Abstract: A non-contact evaluation system for evaluating a synthetic rope. The system includes a first transducer, a second transducer, and a processor. The first transducer is located at a first position and configured to convert a first electrical signal into a wave directed toward the synthetic rope under test. The wave has characteristics such that at least of a portion of the wave passes around a perimeter of the synthetic rope. The second transducer is located at a second position opposite the first position and radially aligned with the first transducer. The second transducer is also configured to receive and convert the portion of the wave into a second electrical signal. The processor is configured to determine a structural health measure of the synthetic rope based on the second electrical signal.

Abstract: A non-contact signal propagation property evaluation system for ropes can be deployed for a number of different applications including, but not limited to, moving lines, e.g., crane or winch and static lines, e.g., mooring lines, stays, etc., to evaluate physical properties of the ropes and, in some cases, to help evaluate structural health of the ropes. The system includes a first transducer for generating ultrasonic waves, a second transducer for receiving ultrasonic waves propagated transversely through and around the rope, and a processor executing computer readable code to determine acoustic propagation properties of the rope.

Abstract: A rope and a method of constructing the rope. The rope may be of 12×12 braided construction and include a core for its length. The rope includes a plurality of primary strands, and each of the primary strands includes a plurality of fibers which may be made of a high-friction material. The rope also includes a secondary strand surrounded by the plurality of primary strands. The secondary strand includes a plurality of fibers which may be made of a low-friction material.

Abstract: A non-contact signal propagation property evaluation system for ropes can be deployed for a number of different applications including, but not limited to, moving lines, e.g., crane or winch and static lines, e.g., mooring lines, stays, etc., to evaluate physical properties of the ropes and, in some cases, to help evaluate structural health of the ropes. The system includes a first transducer for generating ultrasonic waves, a second transducer for receiving ultrasonic waves propagated transversely through and around the rope, and a processor executing computer readable code to determine acoustic propagation properties of the rope.