公开(公告)号：US20180224352A1

公开(公告)日：2018-08-09

申请号：US15570339

申请日：2016-08-26

Applicant: SOUTHEAST UNIVERSITY

Inventor： Jian ZHANG ,  Qi XIA ,  Bo ZHANG ,  Shuanglin GUO

IPC: G01M7/08 ,  G01H1/14

CPC classification number: G01M7/08 ,  G01H1/00 ,  G01H1/14 ,  G01M5/0008 ,  G01M5/0066

Abstract: The present invention discloses a bridge inspection and evaluation method based on impact vibration. The method includes backward analysis of the bridge based on impact on blocks without reference points and forward analysis of the bridge based on progressive impact loading, where the backward analysis of the bridge based on impact on blocks without reference points is used to rapidly inspect the medium and small bridges from the road network to find the ones with serious shortage of bearing capacity, and the forward analysis of the bridge based on progressive impact loading is used to evaluate the actual bearing capacity of the bridges, which may have good safety condition in the backward analysis. The present invention realizes low-cost and highly efficient inspection and evaluation of the medium and small bridges in the road network.

公开(公告)号：US20190234834A1

公开(公告)日：2019-08-01

申请号：US16316351

申请日：2016-08-26

Applicant: SOUTHEAST UNIVERSITY

Inventor： Jian ZHANG ,  Zhao CHEN ,  Wenju ZHAO ,  Liming ZHOU

IPC: G01M17/013 ,  G01L5/00 ,  B60C23/04

Abstract: A method and system for measuring vertical wheel impact force in real-time based on tire pressure monitoring is provided by the present invention. The system mainly includes the four modules, namely a tire pressure derotation preprocessing, a tire pressure-wheel force system identification, a calibration method, and an integrated device for tire pressure-wheel force measurement. The method uses the integrated device to collect tire pressure data in real-time. The corresponding vertical wheel impact force is obtained through the derotation preprocessing and the tire pressure-wheel force system identification, and is calibrated according to the calibration method. The present invention provides an efficient, accurate, and highly adaptable wheel force measurement solution in the theoretical aspect and device aspect, which meets the requirements for the quick evaluation of the bridge health condition. Also, the present invention has a great potential in the fields such as road safety diagnosis, automobile performance related design, etc.