Vibration dataset of a rotor-shaft test rig (misalignment under load variations) 核心 · 已核验

doi:10.17632/cbpr9fvvwb.1

1. System overview

This dataset provides high-resolution vibration signals designed for the development and validation of misalignment detection algorithms in rotating machinery operating under varying load conditions. The experiments were conducted at Poznań University of Technology. The experimental data were collected from a laboratory-scale rotor-shaft test rig consisting of a three-phase electric motor, a gearbox, and a hydraulic gear pump. The gearbox features a transmission system of four identical spur gears - configured as two interacting pairs - with each gear possessing 29 teeth.

The simulation of mechanical faults focused on parallel shaft misalignment, which was introduced by precisely adjusting the separation between the two shafts of the gear transmission. The dataset captures five distinct levels of fault severity: a healthy state (0 mm) and four progressive misalignment conditions at 0.25 mm, 0.5 mm, 0.75 mm, and 1.0 mm. These faults are evaluated across a comprehensive range of operational loads to simulate real-world industrial environments. Load variations were achieved by regulating the pressure at the hydraulic gear pump's throttle valve, spanning from 0 MPa to 4.0 MPa in increments of 0.4 MPa. Throughout the testing, the system maintained an average rotational speed of 1490.68 RPM, which corresponds to a fundamental rotational frequency of 25 Hz and a primary gear meshing frequency of 733 Hz.

2. Data acquisition

Data acquisition was performed using a 24-bit VIBDaq 4+ system at a sampling rate of 11 kHz, with each recording containing 991,232 samples to ensure sufficient data for advanced stationarity and frequency-domain analysis. The vibration signals were recorded from three specific positions to capture the complex dynamics of the transmission system. The third data column contains measurements from acceleration sensor #1, located on the gearbox housing. The fourth data column represents acceleration sensor #2, mounted at the bearing of th

落地页

https://data.mendeley.com/datasets/cbpr9fvvwb/1

许可证

CC-BY-4.0 (判读置信:inferred)

国内可访问性

国内直连:可达 (2026-07-11 检测) 代理通道:可达 (2026-07-11 检测)
检测口径:lychee 双通道单轮探测;「直连超时」表示检测窗口内未完成,系慢或不稳定证据,不构成封锁证据。

发布年份

2026

发布方

Mendeley Data

设备类型

rotor_system gearbox pump

PHM 任务

fault_detection

故障工况

传感器

运行工况