A multi-dimensional magnetic negative-stiffness mechanism and a multi-dimensional magnetic negative-stiffness vibration isolation system composed thereof are provided. The multi-dimensional damping system is composed of a positive-stiffness mechanism, a multi-dimensional negative-stiffness mechanism, a floating frame, a vibration isolated body, and a mounting base. The positive-stiffness mechanism is a traditional elastic element connected to the vibration isolated body and the mounting base, and provides supporting forces in an X direction, a Y direction, and a Z direction, and a basic vibration isolation function. The multi-dimensional negative-stiffness mechanism is composed of at least two negative-stiffness magnetic groups. Each negative-stiffness magnetic group may provide one-dimensional or two-dimensional negative stiffness. Through a series connection of the at least two negative-stiffness magnetic groups, a two-dimensional or three-dimensional negative-stiffness effect may be implemented to improve the vibration isolation performance of the system in multiple dimensions.

The present disclosure relates to a vibration reduction device, an electronic device and mobile equipment containing same. The vibration reduction device comprises: a first fixing component (10) which is a frame structure (11); a second fixing component (100) arranged in the center or near the center position of the first fixing component (10); and a vibration reduction connecting component (50) positioned between the first fixing component (10) and the second fixing component (100) and used for connecting both together. The vibration reduction connecting component (50) comprises a vibration reduction connecting frame (53) connected to the frame structure (11), and an inverted U-shaped structure (51) positioned in the vibration reduction connecting frame (53), connected to the lower part of the vibration reduction connecting frame (53) through supporting legs and connected with the second fixing component (100). The vibration reduction device of the present disclosure can provide excellent vibration reduction and impact-prevention protection for electronic products and precision electronic equipment. It is especially able to protect electronic products and precision electronic equipment installed on mobile equipment, such as a vehicle, against physical damage while under severe travelling conditions, as well as ensure their normal operation. The vibration reduction device according to the present disclosure not only has a simple structure and occupies little space, but also has simple installation and long service life, and can be suitable for varying load conditions.

Exemplary embodiments of the present invention would provide an exemplary vibration isolation and seismic restraint apparatus that would comprise: an exemplary structural member comprising: counterposed threaded holes; counterposed layered threaded force-transfer bosses, wherein each of the counterposed layered threaded force-transfer bosses would comprise a threaded hole aligned with a corresponding counterposed threaded hole in said underlying (bottom) member. The exemplary structural member would further comprise: counterposed threaded studs, wherein each of the counterposed threaded studs would be threaded through corresponding threaded holes in the corresponding layered threaded force-transfer boss and corresponding threaded holes in the underlying (bottom) member. The exemplary structural member would further comprise a spring resting on, or attached to, a position on the structural member between the counterposed threaded studs. The exemplary vibration isolation and seismic restraint apparatus would further comprise a housing for the spring.

A vibration isolator, system, and method for minimizing propagation of vibrations between structures are configured to decouple axial and lateral structural modes. The vibration isolator includes an axial flexural support that provides axial compliance relative to a central axis and a lateral elastomeric support that provides lateral compliance relative to the central axis. The axial flexural support and the lateral elastomeric support provide stiffness about the central axis. The vibration isolator includes a first mount coupled to a first external structure and a second mount coupled to a second external structure. The axial flexural support is coupled to the first mount and the lateral elastomeric support is coupled to the second mount and the axial flexural support. Using an axial flexural support and a lateral elastomeric support enables tuning of the structural modes in one axis while minimizing the effects to the structural modes in the orthogonal axes.

An embodiment of the present application discloses an anti-fall device including a trigger mechanism, a deformable structure and a shell. The deformable structure is connected with the trigger mechanism and is set to be compressed and elastically deformed when located in the shell. The trigger mechanism is set in the shell and is configured to drive the deformable structure to move in a direction away from the trigger mechanism, so that the deformable structure pops out of the shell and recovers to a natural state from a compressed state.

The present disclosure discloses a three-dimensional seismic and vibration isolator with adaptive stiffness property in both vertical and horizontal directions. The isolator comprises an upper connection plate, a middle plate, an lower connection plate, a disc spring, a pre-compressed helical springs, a laminated lead rubber bearing, and viscous dampers. The upper connection plate, the middle plate and lower connection plate are made of high strength low carbon steel. The upper connection plate and middle plate are tightly contacted by the occlusive design, to guide the vertical motion. The vertical isolation system is made up of the disc spring, pre-compressed helical spring, and viscous damper. The horizontal isolation system comprises the laminated lead rubber bearing, pre-compressed helical spring and viscous damper. The disclosure adopts the theory of nonlinear adaptive vibration control technology and can be used to protect building structures or instruments from the seismic strikes or other environmental vibrations.

A connector including: a first buffer member that includes a spiral-shaped wire in a plan view; a second buffer member that has a substantially annular and flat plate-like shape, and that is capable of warping in a thickness direction; a collar member that includes a cylindrical portion surrounded by the first buffer member and the second buffer member, a first flange facing a radially inner side of the first buffer member, and a second flange facing a radially inner side of the second buffer member; and a coupling member that includes a first holder section holding radially outer sides of the first buffer member and the second buffer member, a second holder section holding the shielding body, and a coupling member base portion.

A carrier platform with a suspension mechanism and suspension methods for supporting a vibration-sensitive load including humans and sensitive objects or cargo in a vehicle such as a terrestrial vehicle, a marine vehicle or aircraft. The suspension mechanism deploys a set of linkage elements for accommodating linear motion of the carrier platform in a vertical linear degree of freedom (Z-axis) and in two horizontal linear degrees of freedom (X- and Y-axes). The suspension mechanism uses springs attached to the carrier platform for biasing it along the vertical linear degree of freedom. The suspension mechanism also has an active damping device with a set of motors to dampen vibrations experienced by the carrier platform in at least one translational degree of freedom.

A quasi-zero stiffness electromagnetic vibration isolator for ultra-low frequency vibration reduction and isolation is provided. When the vibration isolator is in a static equilibrium position, upper and lower air gaps are equal, and electromagnetic attraction forces of upper and lower stator assemblies to a mover assembly are equal. When the load tends to move upwards, the mover assembly is subjected to an upward resultant force, when the load tends to move downwards, the mover assembly is subjected to a downward resultant force, showing the characteristic of negative stiffness. A negative stiffness mechanism composed of the upper stator assembly, the lower stator assembly and the mover assembly is connected in parallel with the positive stiffness springs to achieve a quasi-zero stiffness.

A vibration ripper having a link structure with an improved vibration isolating function is characterized by including: a first vibroisolating body installed across the vibration body from a left lower portion of the vibration body; and a link device for connecting the outer body and the first vibroisolating body in order to absorb vibrations, wherein the link device is provided with a pair of connection members which are spaced apart from and parallel to each other, a coupling hole for coupling the first vibroisolating body is formed in the left side of the connection members, and a second vibroisolating body coupled to the outer body is integrally installed on the right side of the connection members.