换挡离合器碟形摩擦元件轴向承载特性

张丁戈; 马彪; 郑长松; 刘新; 杨硕; 黄静秋; 黄鹏

doi:10.12382/bgxb.2025.0862

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换挡离合器碟形摩擦元件轴向承载特性

更新时间：2026-04-19

- 换挡离合器碟形摩擦元件轴向承载特性
- Axial Bearing Characteristics of Disc-Shaped Friction Elements in Shifting Clutch
- 兵工学报 2026年
- 作者机构：
  
  1. 北京理工大学机械与车辆学院,北京,100081
  2. 陆军装备部驻湘潭地区军事代表室,湖南,湘潭,411100
  3. 江麓机电集团有限公司,湖南,湘潭,411100
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目(52175037、52205047);北京理工大学前沿交叉计划项目(2024CX11006)
- DOI：10.12382/bgxb.2025.0862
  中图分类号： U463.2
- 收稿：2025-09-18，
  
  网络首发：2026-04-19，
- 稿件说明：
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张丁戈，马彪，郑长松，等. 换挡离合器碟形摩擦元件轴向承载特性[J/OL]. 兵工学报, 2026(2026-04-19). https://doi.org/10.12382/bgxb.2025.0862.

ZHANG D G, MA B, ZHENG C, et al. Axial bearing characteristics of disc-shaped friction elements in shifting clutch[J/OL]. Acta Armamentarii, 2026(2026-04-19). https://doi.org/10.12382/bgxb.2025.0862. (in Chinese)
张丁戈，马彪，郑长松，等. 换挡离合器碟形摩擦元件轴向承载特性[J/OL]. 兵工学报, 2026(2026-04-19). https://doi.org/10.12382/bgxb.2025.0862. DOI：

ZHANG D G, MA B, ZHENG C, et al. Axial bearing characteristics of disc-shaped friction elements in shifting clutch[J/OL]. Acta Armamentarii, 2026(2026-04-19). https://doi.org/10.12382/bgxb.2025.0862. (in Chinese) DOI：

摘要

摩擦元件碟形翘曲变形会导致湿式多片换挡离合器严重失效。为探究不同翘曲程度对换挡离合器摩擦元件轴向承载特性的影响机理，建立摩擦副轴向承载数值模型与有限元模型，利用摩擦副轴向反力与等效刚度表征轴向承载特性，研究钢片翘曲高度及其位置特征对离合器轴向承载特性及径向接触压力分布特性的影响规律，并通过试验验证了模型可靠性。研究结果表明：碟形钢片存在临界翘曲高度（2.59mm），低于该值时恢复力随变形量单调递增，高于该值时则出现负刚度现象；多摩擦副轴向承载过程呈现明显阶段性特征，不同翘曲高度钢片的位置特征对轴向承载特性影响较小，但超过临界值的钢片会加速磨损，导致功能失效。

Abstract

Thedisc-shapedbucklingdeformation offriction elementscan lead to severe failure of the wetmulti-discshiftingclutch. To investigate the influence mechanism of different degrees ofbucklingon the axial bearing characteristics ofclutch friction elements

a numerical model and a finite element modelfor theaxial bearingof friction pairswere established. The axial bearing characteristicswere characterizedby the axial reaction force and equivalent stiffness of the friction pairs. The influence of steel platebucklingheight and its positionalcharacteristics on the axial bearing characteristics and radialcontact pressure distribution characteristicsof the clutch was studied

and the reliability of the modelswas verified through experiments. The results indicate that thereexistsa critical buckling height (2.59mm) for the disc-shaped steelplate. Below this value

the restoring force increases monotonically with the deformation

while above this value

negative stiffness occurs.The axial loading process of multiple friction pairs exhibits distinct stage characteristics.The positionalcharacteristics of steelplates with differentbucklingheights have little effect on the axial bearing characteristics

butsteel plates exceeding the critical value will accelerate wear and lead to functional failure.

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