Disclosed is a zero Poisson's ratio structure including a central pillar; at least two branched connectors extending radially from a lower end of the central pillar, wherein each of the branched connectors includes: a first segmental portion extending inclinedly upwardly or downwardly from the central pillar; and a second segmental portion extending inclinedly downwardly or upwardly from a distal point of the first segmental portion, wherein the extension directions of the first and second segmental portions are opposite to each other; and each leg extending perpendicularly downwardly from a distal point of each of the second segmental portions, wherein due to a force pressing the central pillar, each of an angle between the central pillar and the first segmental portion, an angle between the first segmental portion and the second segmental portion, and an angle between the second segmental portion and the leg is variable.

An isolation system and method are disclosed. The isolation system includes a beam that includes a first end and a second end. The isolation system may include at least one clamping block comprising first elastomeric material, and the first end may be coupled with the first elastomeric material by the at least one clamping block. An end condition of the buckling beam may be varied based on compression stiffening of the first elastomeric material.

An isolation system and method are disclosed. The isolation system includes a beam that includes a first end and a second end. The isolation system may include at least one clamping block comprising first elastomeric material, and the first end may be coupled with the first elastomeric material by the at least one clamping block. An end condition of the buckling beam may be varied based on compression stiffening of the first elastomeric material.

An isolation system for a light detection and ranging (LiDAR) optical core assembly is provided. The LiDAR optical core assembly comprises a polygon-motor rotating element, an oscillating reflective element, and transmitting and collection optics. The isolation system comprises a polygon-motor base element coupled to the polygon-motor rotating element and a plurality of isolators substantially fixed to the polygon-motor base element and disposed relative to each other around a spatial location determined based on a center of gravity of at least one of the optical core assembly and the polygon-motor rotating element. The plurality of isolators is adapted to mitigate acoustic noise caused by at least the polygon-motor rotating element during operation of the optical core assembly.

Embodiments of the present invention is a shock-absorbing bracket, including: a mounting bracket; a base, where the base is spaced apart from the mounting bracket; and a plurality of shock-absorbing elements, where one end of each of the plurality of shock-absorbing elements is connected with the mounting bracket. Through the structure, the mounting bracket and the base form a triangular shock-absorbing mounting structure in a vertical direction, the stability of the shock-absorbing bracket is improved, and the shock-absorbing effect is good.

Embodiments of the present invention is a shock-absorbing bracket, including: a mounting bracket; a base, where the base is spaced apart from the mounting bracket; and a plurality of shock-absorbing elements, where one end of each of the plurality of shock-absorbing elements is connected with the mounting bracket. Through the structure, the mounting bracket and the base form a triangular shock-absorbing mounting structure in a vertical direction, the stability of the shock-absorbing bracket is improved, and the shock-absorbing effect is good.

Provided is a cryopump including a cryopump vacuum chamber, a cryocooler, a first flange fixed to the cryopump vacuum chamber, a second flange fixed to the cryocooler and airtightly connected to the first flange, and an annular laminated vibration isolation body in which a first annular vibration isolation material, a first annular support member, an intermediate annular vibration isolation material, a second annular support member, and a second annular vibration isolation material are disposed in this order from the first flange toward the second flange. The second annular support member and the first annular support member are fixed to the first flange and the second flange, respectively, such that the first flange and the second annular support member are vibration-isolated from the second flange and the first annular support member.

Provided is a cryopump including a cryopump vacuum chamber, a cryocooler, a first flange fixed to the cryopump vacuum chamber, a second flange fixed to the cryocooler and airtightly connected to the first flange, and an annular laminated vibration isolation body in which a first annular vibration isolation material, a first annular support member, an intermediate annular vibration isolation material, a second annular support member, and a second annular vibration isolation material are disposed in this order from the first flange toward the second flange. The second annular support member and the first annular support member are fixed to the first flange and the second flange, respectively, such that the first flange and the second annular support member are vibration-isolated from the second flange and the first annular support member.

A vibration damping and sound insulating device installed on an installation object, includes: vibrators disposed at a prescribed spacing. Each of the vibrators includes: a cylindrical tubular member on the installation object; an elastic body supported by the cylindrical tubular member such that the elastic body traverses a hollow portion of the cylindrical tubular member along a direction orthogonal to an axis of the cylindrical tubular member; and a weight on the elastic body. The prescribed spacing is determined based on a half-end-length spacing of a wavelength of a bending wave generated in the installation object.

A vibration damping and sound insulating device installed on an installation object, includes: vibrators disposed at a prescribed spacing. Each of the vibrators includes: a cylindrical tubular member on the installation object; an elastic body supported by the cylindrical tubular member such that the elastic body traverses a hollow portion of the cylindrical tubular member along a direction orthogonal to an axis of the cylindrical tubular member; and a weight on the elastic body. The prescribed spacing is determined based on a half-end-length spacing of a wavelength of a bending wave generated in the installation object.