载荷工况对静叶调节机构阻滞力的影响

doi:10.12068/j.issn.1005-3026.2025.20230280

摘要/Abstract

摘要：

为从实验层面探究静叶调节机构的温度及载荷工况对其阻滞力的影响，考虑运动功能及使用载荷模拟的机构试验设计准则，搭建了原理级的单级调节机构试验系统，提出了采用单向拉压力传感器对机构运行阻滞力进行测试的方法，对不同轴向力负载、环境温度下的拉杆应变以及直动推杆受力情况进行了测试.结果表明，在轴向力载荷与温度单独作用时，阻滞力变化情况与轴向力载荷密切相关，轴向力载荷对阻滞力的影响大于温度对其影响；在载荷与温度共同作用时，轴向力载荷和温度对阻滞力的影响呈现耦合趋势，且在机构回程运动过程中，温度对阻滞力的影响不可忽视.

关键词: 静叶调节机构, 阻滞力, 载荷工况, 试验系统, 力测试

Abstract:

In order to explore the effect of temperature and load conditions on the retardation force of stator vanes’ regulating mechanism from an experimental level， a single-level regulating mechanism test system is built considering the design criteria of the mechanism experiment based on motion functions and load simulation at the schematic-level. A method for testing the force of the operation mechanism using a unidirectional tension force sensor is proposed. Tests are conducted on the strain of the pull rod under different axial force loads and environmental temperatures， as well as the force on the push rod. The results show that under individual effects of axial force load and temperature， the change in retardation force is closely related to axial force load， and the effect of axial force load on retardation force is larger than that of temperature； when axial force is combined with temperature， the effect of retardation force shows a coupled trend， and the influence of temperature on retardation force cannot be ignored during the mechanism’s return motion.

Key words: stator vanes’ regulating mechanism, retardation force, load condition, experimental system, force test

中图分类号:

V 233.95

常晶, 罗忠, 逄超, 李洪雨. 载荷工况对静叶调节机构阻滞力的影响[J]. 东北大学学报（自然科学版）, 2025, 46(3): 97-105.

Jing CHANG, Zhong LUO, Chao PANG, Hong-yu LI. Effect of Load Conditions on the Retardation Force of Stator Vanes’ Regulating Mechanism[J]. Journal of Northeastern University(Natural Science), 2025, 46(3): 97-105.

图/表 15

表1 叶片气动载荷简化模拟及叶片温度

Table 1 Simplified simulation of aerodynamic load and temperature of blade

载荷类型	载荷参数	稳态工况	简化工况	试验工况
气动载荷	力示意
	力方向
	力幅值	—	F₁=500 N F₂=200 N M₁=1.5 N·m	F₁=0~500 N
气热载荷	温度幅值	第0级250 ℃ 第1级310 ℃ 第2级360 ℃ 第3级400 ℃	第0级250 ℃ 第1级310 ℃ 第2级360 ℃ 第3级400 ℃	常温~200 ℃可控

图1 试验系统

Fig.1 Experimental setup

表2 传感器参数

Table 2 Parameters of sensor

非线性0.03%~0.1%全量程

滞后0.03%~0.1%全量程

不重复性0.03%~0.1%全量程

图2 运动功能试验验证结果（a）—叶片及驱动转角；（b）—试验值与仿真值对比.

Fig.2 Verification results of the motion function test

表3 应变片参数

Table 3 Parameters of the strain gauge

应变计类别

标称电阻值/Ω

应变计

栅长/mm

± 0.0

表3 应变片参数

Table 3 Parameters of the strain gauge

应变计类别

标称电阻值/Ω

应变计

栅长/mm

灵敏系数/%

箔式应变片

120

2.1

± 0.0

图3 应变片布置方式

Fig.3 Arrangement of the strain gauges

图4 拉杆的应变及阻滞力（a）—横截面应变；（b）—轴向应变；（c）—阻滞力.

Fig.4 Strain and retardation force of the pull rod

表4 试验安排

Table 4 Test arrangement

试验对象	载荷/N	温度条件	测试内容
单级调节机构试验系统	20, 50, 70, 100	常温、 150 ℃	拉杆应变，作动筒拉压力

图5 阻滞力测试曲线

Fig.5 Retardation force test curves

图6 拉杆运动过程（a）—起始；（b）—中间；（c）—结尾.

Fig.6 Movement process of pull rod

图7 不同轴向力情况下的阻滞力（a）—原始数据；（b）—局部数据.

Fig.7 Retardation force under different axial force conditions

图8 阻滞力与轴向力比值结果

Fig.8 Results of the ratio of retardation force to axial force

图9 应变曲线

Fig.9 Strain curves

图10 温度对阻滞力的影响（a）—总阻滞力；（b）—局部I；（c）—局部Ⅱ.

Fig.10 Effect of temperature on retardation force

图11 力、温度及其耦合作用下的阻滞力

Fig.11 Retardation force under force, temperature and their coupling effect

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