Hollow drive shaft based on multi-working condition load path and embedded composite forming method thereof
By combining multi-condition load path analysis and gradient interlock interface design with directional thermo-composite process, the problems of heavy drive shaft material and interface delamination were solved, and lightweight and highly reliable drive shaft manufacturing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AVIC BEIJING INST OF AERONAUTICAL MATERIALS
- Filing Date
- 2026-04-17
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional drive shaft materials are heavy, have high inertia, and consume a lot of energy. Existing composite materials are prone to interfacial peeling under combined loads and are sensitive to impact wear, making it difficult to meet high reliability requirements.
Through multi-condition load path analysis, gradient interlocking interface design, and directional thermo-composite process, the precise layout of fiber-reinforced composite materials in the thick middle layer of steel hollow drive shaft is achieved, establishing a strong and tough interface bond between steel, composite materials, and steel.
It achieves structural and functional integration, significantly reduces weight, improves overall mechanical properties and service reliability, increases interfacial shear strength by more than 100%, and significantly improves fatigue life.