Study of JUST Slewing Bearing Failure Test Data

doi:10.12382/bgxb.2023.0756

Abstract

Abstract:

As a key component of military radar, the slewing bearing plays a significant role in ensuring the safe use of an equipment and improving its efficiency. The real-time monitoring and diagnosis of slewing bearing operation state through data-driven methods have become a hot research topic in this technical field. However, the slewing bearing is faced with the problems of complex service conditions and scarce failure test samples so that its fault diagnosis technology research has been plagued by the lack of data and the development and application of the prediction and health management technology of military machinery and equipment are seriously constrained. For this reason, the slewing bearing failure is tested, and a failure test data set is generated by collecting the multidirectional vibration and acoustic emission signals during the operation process of slewing bearing. The data set contains the vibration signals and acoustic emission signals of slewing bearing under nine working conditions, and the signal acquisition time, fault label, rotational speed, load, number of acquisitions and other related information of slewing bearing are clearly labeled, which provides data support and technical guarantee for the fault diagnosis of data-driven slewing bearing and the health management of radar servo system.

Key words: slewing bearing, radar, data-driven, failure test, failure prediction and health management

CLC Number:

TH133

ZHOU Honggen, REN Xiaodie, SUN Li, LI Guochao, WEN Sizhao, PENG Zhan, LIU Yinfei. Study of JUST Slewing Bearing Failure Test Data[J]. Acta Armamentarii, 2024, 45(10): 3744-3753.

Figures/Tables 16

Fig.1 Slewing bearing failure test rigs

Fig.2 Specific sensor layout

Table 1 Specific parameters of 111.10.100 single-row crossed cylindrical roller slewing rings

参数	数值	参数	数值
外径/mm	135	总高度/mm	22
内径/mm	65	内外圈高度/mm	20
外孔距/mm	120	孔数	8
内孔距/mm	80	丝孔/mm	M8
齿宽/mm	20	齿顶圆直径/mm	144
模数	2	重量/kg	1.5
齿数	70	滚子个数	52

Table 2 Fault test and design condition of slewing bearing

工况编号	输出转速/(r·min^-1)	倾覆力/N
1	2	0
2	2	30
3	2	60
4	6	0
5	6	30
6	6	60
7	12	0
8	12	30
9	12	60

Table 3 Sensor performance indexes

传感器类型	传感器型号	性能参数
单向传感器	8702B100	x轴灵敏度:49.57mV/g、 49.38mV/g、48.93mV/g; 测量范围:±100g 温度范围:-54~100℃
三向传感器	8763B100BB	x轴灵敏度:51.40mV/g; y轴灵敏度:50.13mV/g; z轴灵敏度:51.01mV/g; 测量范围:±100g; 温度范围:-54~100℃
声发射传感器	8152C0050511	灵敏度:57dB; 频率范围:50~400kHz; 温度范围:-55~165℃
声发射安装磁座	8443B	电压:24V

Fig.3 DEWESOFT X3 signal collector

Fig.4 Four different state types of slewing bearing

Table 4 List of data set of slewing bearing fault test

工况编号	回转支承状态	采样次数	总采样数
	N
1	B1	5	20
	I
	O
	N
2	B1	5	20
	I
	O
	N
3	B1	5	20
	I
	O
	N
4	B1	5	20
	I
	O
	N
5	B1	5	20
	I
	O
	N
6	B1	5	20
	I
	O
	N
7	B1	5	20
	I
	O
	N
8	B1	5	20
	I
	O
	N
9	B1	5	20
	I
	O

Fig.5 Feature extraction of horizontal vibration signal in Condition 9

Fig.6 Time-domain waveform of horizontal vibration signal of slewing bearing under Condition N

Fig.7 Time-domain waveform of horizontal vibration signal of slewing bearing under Condition I

Fig.8 Time-domain waveform of horizontal vibration signal of slewing bearing under Condition O

Fig.9 Time-domain waveform of horizontal vibration signal of slewing bearing under Condition B1

Fig.10 Frequency spectrum analysis of horizontal vibration signal of slewing bearing under Condition B1

Fig.11 Histogram of recognition accuracies of different algorithms

Fig.12 2D Visualization of training sample features

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