Page 74 - 《橡塑技术与装备》英文版2026年3期

HINA R&P TECHNOLOGY AND EQUIPMENT

Application and selection of circular bead wire rings for radial aircraft tires

Wang Chaoqun

(Huangpu Tire (Guangzhou) Technology Co. LTD., Huangpu 510700, Guangzhou, China)
Abstract: Aircraft tires endure significant impact loads during takeoff and landing, increasing inflation
pressure that is primarily borne by bead wires. Thus, enhancing aircraft tire bead fatigue resistance and
optimizing structural stress distribution are crucial for radial aircraft tire design and development. Compared
with polygonal bead wires, those with a circular cross-section have significant advantages in stress variation
under load, and their production and application are increasingly mature. This paper explores the structural
principles, application scenarios, and selection methods of circular bead wires, laying a solid theoretical
foundation for product structure optimization and quality improvement.
Key words: aviation tire; circular bead wire; application; selection
Classification number: TQ330.66 Article number: 1009-797X(2026)03-0028-07
Document code: B DOI:10.13520/j.cnki.rpte.2026.03.006

As the nation places increasing emphasis on the research 1 Application of circular steel wire bead
and development of "bottleneck" technological projects for in radial aircraft tire
radial aircraft tires, the structural design of aircraft tires is Currently, the types of steel wire rings used in tires can
becoming increasingly refined and is gradually entering a be divided into regular hexagonal, oblique hexagonal, oblique
modern design phase. Currently, Computer-Aided Design heptagonal, rectangular, and circular steel wire rings based on
(CAD) technology and ABAQUS finite element analysis their cross-sectional shapes after molding. The molding process
technology are widely used. However, the structural design of polygonal steel wire rings is relatively simple. During the
of domestic aircraft tires still primarily relies on repeated winding process, a single steel wire is coated with rubber
verification of test schemes to achieve the best application and wound from bottom to top in the designed groove of the
results in experiments. winding disc, resulting in different polygonal cross-sectional
In China, the gap between the technical strength, research shapes. Coating a single steel wire with rubber can enhance
and development, and design capabilities of domestic aviation the overall mechanical properties, and the arrangement of
tire R&D and manufacturing enterprises and those of leading wires between roots forms a linear structure. However, the
foreign aviation tire enterprises is gradually narrowing. wires in each layer are separated, and the stress changes in the
Establishing a set of theories and research methods for aviation steel wire ring are concentrated. This type of steel wire ring
tire structural design is the most urgent task in China's aviation is commonly used in automobiles, construction machinery
tire technology field. vehicles, and bias-ply aircraft tires.
In the structural design of aircraft tires, the bead wire 1.1 Circular bead wire structure
is the main component that bears the load, and its structural The circular cross-section bead wire is divided into a bead
design stress analysis also falls under the category of geometric
Biography: Wang Chaoqun (1974-), male, holds a bachelor's degree
nonlinear analysis caused by deformation. Therefore, the
and is a senior engineer. He primarily engages in research and technology
preliminary theoretical research on design is even more crucial. related to rubber equipment and structures, and has published 33 papers.

·28· Vol.52，No.3