As disclosed herein, the viscoelastic performance of boron nitride nanotube (BNNT) materials may be enhanced and made into useful formats by utilizing purified BNNTs, aligned BNNTs, isotopically enhanced BNNTs, and density controlled BNNT material. Minimizing the amounts of boron particles, a-BN particles, and h-BN nanocages, and optimizing the h-BN nanosheets has the effect of maximizing the amount of BNNT surface area present that may interact with BNNTs themselves and thereby create the nanotube-to-nanotube friction that generates the viscoelastic behavior over temperatures from near absolute zero to near 1900 K. Aligning the BNNT molecular strands with each other within the BNNT material also generates enhanced friction surfaces. The transport of phonons along the BNNT molecules may be further enhanced by utilizing isotopically enhanced BNNTs.

A system for damping vibrations has a damping device which has a fastening anchor configured to be fixed to a component. The anchor has a rod-shaped insertion element and an axial securing element projecting radially from the insertion element. The damping device has an elastic all-metal cushion having an opening dimensioned, in the unexpanded state, such that the axial securing element is not insertable through it. Part of the system is also an installation aid configured to be releasably fastened to the anchor. The installation aid is shaped in such a manner that, when it is fastened to the anchor and the cushion is pushed over the installation aid, said installation aid expands the opening of the cushion in the radial direction to such an extent that the opening of the cushion passes the axial securing element during pushing on, and the cushion latches behind the axial securing element.

A system for damping vibrations has a damping device which has a fastening anchor configured to be fixed to a component. The anchor has a rod-shaped insertion element and an axial securing element projecting radially from the insertion element. The damping device has an elastic all-metal cushion having an opening dimensioned, in the unexpanded state, such that the axial securing element is not insertable through it. Part of the system is also an installation aid configured to be releasably fastened to the anchor. The installation aid is shaped in such a manner that, when it is fastened to the anchor and the cushion is pushed over the installation aid, said installation aid expands the opening of the cushion in the radial direction to such an extent that the opening of the cushion passes the axial securing element during pushing on, and the cushion latches behind the axial securing element.

A flexible vibratory damping apparatus is defined by a sheet-like component that is formed from threads made from at least one elastomeric material and formed into a knitted configuration. The knitted configuration is defined by a plurality of adjacent loops wherein the sheet-like component can be wrapped about a structural component under load or otherwise attached thereto. Under an applied load, the adjacent loops act independently in terms of resonance wherein the size of the adjacent loops, the density of the formed mesh and the properties of the elastomeric material used can be suitably varied as needed in order to adjust or tune the damping characteristics of the apparatus. In at least one version, a constraining layer can also be applied onto at least a portion of the apparatus.

A flexible vibratory damping apparatus is defined by a sheet-like component that is formed from threads made from at least one elastomeric material and formed into a knitted configuration. The knitted configuration is defined by a plurality of adjacent loops wherein the sheet-like component can be wrapped about a structural component under load or otherwise attached thereto. Under an applied load, the adjacent loops act independently in terms of resonance wherein the size of the adjacent loops, the density of the formed mesh and the properties of the elastomeric material used can be suitably varied as needed in order to adjust or tune the damping characteristics of the apparatus. In at least one version, a constraining layer can also be applied onto at least a portion of the apparatus.

The invention relates to a spring, in particular to move at least one part of a fixture of the vehicle interior space. It was the object of the invention to create a spring, that does not cause disturbing noises due to vibrations. The object is solved by the spring being made of plastic.

The invention relates to a spring, in particular to move at least one part of a fixture of the vehicle interior space. It was the object of the invention to create a spring, that does not cause disturbing noises due to vibrations. The object is solved by the spring being made of plastic.

A wire mesh rivet (13) is provided which is used to produce a wire mesh isolator (11) in a bore (9) of a substrate such as a heat shield (7) for a vehicle exhaust system. The rivet (13) comprises a unitary wire mesh structure (19) which has a collar (15) and a shank (17). The collar (15) has a higher density than the shank (17), e.g., the collar (15) has the density of the finished isolator (11). The rivet (13) is formed into the finished isolator (11) by compressing the shank (17) to form a second collar, while restraining the original collar (15) from substantially changing its shape. The rivet (13) can include a metal insert (23) which prevents the wire mesh of the finished isolator (11) from experiencing high levels of compression when the substrate is fastened to its supporting structure. The rivets (13) can be carried by a dispensing strip (31) and can be formed into the finished isolator (11) using forming equipment (39) whose dimensions are compatible with the limited space available with some substrates.

A wire mesh rivet (13) is provided which is used to produce a wire mesh isolator (11) in a bore (9) of a substrate such as a heat shield (7) for a vehicle exhaust system. The rivet (13) comprises a unitary wire mesh structure (19) which has a collar (15) and a shank (17). The collar (15) has a higher density than the shank (17), e.g., the collar (15) has the density of the finished isolator (11). The rivet (13) is formed into the finished isolator (11) by compressing the shank (17) to form a second collar, while restraining the original collar (15) from substantially changing its shape. The rivet (13) can include a metal insert (23) which prevents the wire mesh of the finished isolator (11) from experiencing high levels of compression when the substrate is fastened to its supporting structure. The rivets (13) can be carried by a dispensing strip (31) and can be formed into the finished isolator (11) using forming equipment (39) whose dimensions are compatible with the limited space available with some substrates.

A wire mesh rivet (13) is provided which is used to produce a wire mesh isolator (11) in a bore (9) of a substrate such as a heat shield (7) for a vehicle exhaust system. The rivet (13) comprises a unitary wire mesh structure (19) which has a collar (15) and a shank (17). The collar (15) has a higher density than the shank (17), e.g., the collar (15) has the density of the finished isolator (11). The rivet (13) is formed into the finished isolator (11) by compressing the shank (17) to form a second collar, while restraining the original collar (15) from substantially changing its shape. The rivet (13) can include a metal insert (23) which prevents the wire mesh of the finished isolator (11) from experiencing high levels of compression when the substrate is fastened to its supporting structure. The rivets (13) can be carried by a dispensing strip (31) and can be formed into the finished isolator (11) using forming equipment (39) whose dimensions are compatible with the limited space available with some substrates.