装甲车辆综合传动装置外接油管系统动态特性分析

doi:10.12382/bgxb.2022.0630

摘要/Abstract

摘要：

针对装甲车辆综合传动装置外接油管动态特性恶化导致的失效问题,研究不同车速动态激励下的外接油管动态特性和结构强度变化规律,提出外接油管有效优化改进措施。对综合传动装置上典型外接润滑油管和供油油管系统进行动态特性分析。利用试验测试获取油管关键部位的载荷激励,进行瞬态动力学仿真和理论动力学建模,探究关键参数对油管系统动态特性的影响规律。提出动态特性的优化改进方案,油管系统关键部位的振动幅值消减15%以上。

关键词: 装甲车辆, 综合传动装置, 外接油管, 动态特性, 瞬态动力学仿真

Abstract:

For the failure caused by the deterioration of the dynamic characteristics of external oil pipe in the integrated transmission device of armoured vehicle, the dynamic characteristics and structure strength change laws of external oil pipe under the dynamic excitation of different vehicle speeds are studied, and the effective optimization and improvement measures for the external oil pipe are proposed. The dynamic characteristics of typical external lubricating oil pipe and oil supply pipe system on the integrated transmission device are analyzed. The load excitation of key parts of the oil pipe is obtained by test. The transient dynamic simulation and theoretical dynamic modeling are conducted to study the influence of key parameters on the dynamic characteristics of oil pipe system, and an optimization and improvement scheme of the dynamic characteristics is proposed. The vibration amplitude of key parts of the oil pipe system have decreased by more than 15%.

Key words: armoured vehicle, integrated transmission device, external oil pipe, dynamic characteristics, transient dynamic simulation

中图分类号:

U463.212

高普, 李宏才, 刘辉, 孟杰克. 装甲车辆综合传动装置外接油管系统动态特性分析[J]. 兵工学报, 2023, 44(11): 3447-3454.

GAO Pu, LI Hongcai, LIU Hui, MENG Jieke. Analysis on Dynamic Characteristics of External Oil Pipe System of Integrated Transmission Device in Armoured Vehicle[J]. Acta Armamentarii, 2023, 44(11): 3447-3454.

图/表 19

图1 综合传动装置油路布置

Fig.1 Oil circuit layout of integrated transmission device

图2 数采系统(左)与振动加速度传感器(右)

Fig.2 LMS data acquisition system (left) and vibration acceleration sensor (right)

图3 顶部油管关键测量位置标注编号

Fig.3 Key measure position label of top lubricating oil pipe

图4 侧面油管关键测量位置标注编号

Fig.4 Serial number of Key measuring positions of side lubricating oil pipe

图5 关键测点振动加速度

Fig.5 Vibration accelerationat key measuring point

表1 不同测点不同方向振动加速度幅值

Table 1 Vibration acceleration amplitudes in different directions at different measuring points

方向	测点5 振动加速度幅值/g	测点10 振动加速度幅值/g
x轴	7.50	6.10
y轴	10.10	3.85
z轴	10.05	7.60

图6 关键测点振动位移

Fig.6 Vibrationdisplacement of key measuring point

表2 不同车速下顶部油管应力结果

Table 2 Stress results of top oil pipe at different speeds

序号	工况	最大应力/MPa
1	低速	69.876
2	中速	27.651
3	高速	13.382

表3 不同车速下侧面油管应力结果

Table 3 Stress results of side oil pipe at different speeds

序号	工况	最大应力/MPa
1	低速	155.760
2	中速	92.557
3	高速	69.427

图7 顶部油管改进前(左)后(右)

Fig.7 Before and after modification of top (lift) oil pipe (right)

图8 顶部油管低速应力云图

Fig.8 Stress cloud diagram of top oil pipe at low-speed

图9 侧面油管去弯头改走向后应力云图

Fig.9 Stress cloud diagram of removing of elbow and change in direction of side oil pipe

图10 应力集中部分增加20mm

Fig.10 Stress concentration part increased by 20mm

图11 供油油管布置与三维模型

Fig.11 Oil supply pipe layout and three-dimensional model

图12 泵-油管-箱体模型

Fig.12 Pump-pipe-box model

表4 供油油管关键位置振动位移

Table 4 Vibration displacements of key positions of oil supply pipe

序号	位置	位移变化量/mm
1	滤清器	0~0.6
2	油管上端	0~0.8
3	油管下端	0~2.0

图13 改进前后振动位移y1

Fig.13 Vibration displacement y1 before and after modification

图14 改进前后振动位移y2

Fig.14 Vibration displacement y2 before and after modification

图15 改进前后振动位移y3

Fig.15 Vibration displacement y3 before and after modification

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