Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Machine-soil resonant frequency measurement method, control system and road roller
The invention discloses a machine-soil resonant frequency measurement method. The method comprises the steps of performing low-pass filtering and analog-to-digital conversion on an acquired acceleration signal to convert the acceleration signal into acceleration data; performing time-frequency domain analysis on the acceleration data to obtain an acceleration maximum amplitude and a corresponding frequency thereof, calculating a displacement amplitude under the corresponding frequency, and recording the displacement amplitude and the corresponding frequency into a data series of the maximum amplitude and the corresponding frequency thereof; judging whether calculation of all acceleration data is completed or not and whether q acceleration data are translated or not and then the time-frequency domain analysis is repeated or not; and screening the maximum amplitude and the frequency data series corresponding to the maximum amplitude to obtain the frequency corresponding to the maximum amplitude. The invention further discloses a machine-soil resonance frequency measurement control system and a vibratory road roller comprising the system, the resonance frequency measurement control system is integrated on the vibratory road roller, the machine-soil resonance frequency of the road roller-soil vibration system can be obtained in real time, and the operation is simple and fast.
本发明公开了一种“机‑土”共振频率测量方法，包括：对获取的加速度信号进行低通滤波和模数转换，转换成加速度数据；对其进行时频域分析，获得加速度最大幅值及其对应频率，计算对应频率下的位移幅值，将该位移幅值及对应频率记录到最大振幅及其对应频率数据系列中；判断是否完成所有加速度数据计算以及是否平移q个加速度数据再重复上述时频域分析；筛选上述最大振幅及其对应频率数据系列，获得其中最大的最大振幅所对应的频率。本发明还公开一种“机‑土”共振频率测量控制系统以及包含该系统的振动压路机，将共振频率测量控制系统集成在振动压路机上，能够实现对压路机－土壤振动系统的机‑土共振频率的实时获取，简单、快速。
Machine-soil resonant frequency measurement method, control system and road roller
The invention discloses a machine-soil resonant frequency measurement method. The method comprises the steps of performing low-pass filtering and analog-to-digital conversion on an acquired acceleration signal to convert the acceleration signal into acceleration data; performing time-frequency domain analysis on the acceleration data to obtain an acceleration maximum amplitude and a corresponding frequency thereof, calculating a displacement amplitude under the corresponding frequency, and recording the displacement amplitude and the corresponding frequency into a data series of the maximum amplitude and the corresponding frequency thereof; judging whether calculation of all acceleration data is completed or not and whether q acceleration data are translated or not and then the time-frequency domain analysis is repeated or not; and screening the maximum amplitude and the frequency data series corresponding to the maximum amplitude to obtain the frequency corresponding to the maximum amplitude. The invention further discloses a machine-soil resonance frequency measurement control system and a vibratory road roller comprising the system, the resonance frequency measurement control system is integrated on the vibratory road roller, the machine-soil resonance frequency of the road roller-soil vibration system can be obtained in real time, and the operation is simple and fast.
本发明公开了一种“机‑土”共振频率测量方法，包括：对获取的加速度信号进行低通滤波和模数转换，转换成加速度数据；对其进行时频域分析，获得加速度最大幅值及其对应频率，计算对应频率下的位移幅值，将该位移幅值及对应频率记录到最大振幅及其对应频率数据系列中；判断是否完成所有加速度数据计算以及是否平移q个加速度数据再重复上述时频域分析；筛选上述最大振幅及其对应频率数据系列，获得其中最大的最大振幅所对应的频率。本发明还公开一种“机‑土”共振频率测量控制系统以及包含该系统的振动压路机，将共振频率测量控制系统集成在振动压路机上，能够实现对压路机－土壤振动系统的机‑土共振频率的实时获取，简单、快速。
Machine-soil resonant frequency measurement method, control system and road roller
一种“机-土”共振频率测量方法、控制系统以及压路机
XIA PANFU (Autor:in) / DUAN JILUN (Autor:in) / HAN CHENQI (Autor:in) / GAO LIANG (Autor:in) / HUANG XI (Autor:in) / FAN DONGDONG (Autor:in) / LIU HAO (Autor:in)
07.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
G01H
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
,
Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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