公开(公告)号：US20240418598A1

公开(公告)日：2024-12-19

申请号：US18670629

申请日：2024-05-21

Applicant: Harbin Institute of Technology

Inventor： Chenglong Yu ,  Bin Li ,  Tianyi Li ,  Xuyang Yu ,  Bo Zhao

IPC: G01M7/06

Abstract: Provided is a six-degree-of-freedom vibrational excitation foundation platform, which solves the problem of the existing vibrational excitation foundation equipment that a vibrational excitation frequency band is narrow due to low natural frequency of the equipment. The six-degree-of-freedom vibrational excitation foundation platform includes a marble platform support frame, which is fixedly installed on a concrete floor through a backing plate; and a marble platform, which serves as an excitated device and is located in a middle of the support frame, and four sides of the marble platform support frame are connected to the motors fixedly connected to the support frame through connecting plates. The parallel connection of motor outputs solves the problem of insufficient excitation, and natural frequency of each part of the platform is increased by optimizing the marble platform and the support frame, such that the frequencies are controllable within the vibrational excitation frequency band.

公开(公告)号：US20240403498A1

公开(公告)日：2024-12-05

申请号：US18731449

申请日：2024-06-03

Applicant: Harbin Institute of Technology

Inventor： Chenglong Yu ,  Tianyi Li ,  Bin Li ,  DeHai Li ,  Bo Zhao

IPC: G06F30/10 ,  G01M7/02 ,  G06F30/23

Abstract: Provided is a design method for a support structure of a large-scale vibrational excitation platform. The present invention designs a dimension of a support structure matching a dimension of the vibrational excitation platform, selects appropriate materials to guarantee structural stiffness, performs simulation and verification of finite elements to verify a natural frequency and stress deformation of the support structure, breaks down the support structure to facilitate processing, transportation and assembly, and optimizes structural parameters to enhance stability and stiffness of the support structure. The support structure designed using the design method in the present invention features strong stability, simple structure, high natural frequency and easy to mount. The support structure is assembled by means of welding and threaded connections, and is reinforced with reinforcement plates at important parts, such that structural stiffness and strength of the support structure are guaranteed.