High-stability supporting frame

A high-stability, support frame technology, applied in the direction of the machine/support, engine frame, supporting machine, etc., can solve the problems that cannot meet the mechanical stability requirements of the beam position detector and low frequency

Pending Publication Date: 2021-12-21
INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the traditional pure stiffness support frame has low eigenfrequency, which cannot meet the mechanical stability requirements of the beam position detector application.

Method used

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0027] In terms of vibration stability, the present invention establishes a non-damping, mass-stiffness model:

[0028]

[0029] Among them, [M] is the mass matrix, [K] is the stiffness matrix, is the acceleration vector, [X] is the displacement vector.

[0030] The mass matrix and stiffness matrix of the support frame model are extracted in the ANSYS program. The analysis results obtained from this model analysis show that the eigenfrequency increases with the decrease of the mass of the support frame and the height of the center of mass, and increases with the increase of the stiffness of the support frame. Provides guiding design principles for structural design.

[0031] Following the principle of lowering the mas...

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Abstract

The invention discloses a high-stability supporting frame. The high-stability supporting frame comprises a main supporting body and an adjusting supporting frame, wherein the adjusting supporting frame is mounted at the top of the main supporting body. According to the high-stability supporting frame, starting from the two aspects of thermal stability and vibration stability, the supporting frame is made of a super-invar alloy with a low linear expansion coefficient to improve the thermal stability; and a plurality of groups of rectangular steel and rib plate structures with the wall thicknesses which are gradually reduced from bottom to top in the vertical direction are adopted to reduce the height of the mass center of the supporting frame and improve the rigidity of the supporting frame, so that the vibration stability is improved. According to the high-stability supporting frame, ANSYS software is adopted to carry out modal analysis and topological optimization on the supporting frame to obtain an optimal pure-rigidity supporting frame structure, and a prototype is manufactured; and the eigen frequency and the amplitude amplification ratio of the supporting frame are measured and verified through a hammering method, a piezoelectric accelerometer and a vibration sensor.

Description

technical field [0001] The invention mainly relates to the field of high-energy physics, in particular to a high-stability support frame for beam position detectors. Background technique [0002] Beam orbital stability is one of the key performance indicators of modern synchrotron radiation sources, which directly affects the performance of accelerators and the quality and stability of synchrotron light at experimental line stations. The Beam Position Monitor (BPM) is used as an instrument for beam position and track measurement, and requires a mechanical stability of 100nm. [0003] Commonly used high-stability supports mainly include active vibration isolation supports, passive vibration isolation supports and pure rigidity supports. The spatial position of the synchrotron radiation source is tight, and the center of the beam is 1200mm from the ground. Therefore, the height of the support frame must exceed 1200mm, the longitudinal length of the beam should not exceed 100m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16M11/04F16M11/12F16M11/22F16M7/00F16M9/00
CPCF16M11/043F16M11/12F16M11/22F16M7/00F16M9/00
Inventor 王安鑫麻惠洲王梓豪岳军会随艳峰曹建社魏书军叶强徐韬光何俊赵颖汪林杜垚垚祝德充赵敬霞刘智邢云林
Owner INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI
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