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| 起重机专用445/80R25 ETCRANE工程机械轮胎有限元优化设计及产品性能改善 |
| Finite Element Optimization Desing and Product Performance Improvement of 445/80R25 ETCRANE Off-The-Road Tire for Cranes |
| Received:October 19, 2022 Revised:October 19, 2022 |
| DOI：10.12135/j.issn.1006-8171.2023.11.0659 |
| 中文关键词: 起重机轮胎；工程机械轮胎；胎肩脱层；生热；有限元分析 |
| 英文关键词: crane tire；off-the-road tire；shoulder delamination；heat build-up；finite element analysis |
| 基金项目: |
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| Author Name | Affiliation | E-mail | | YIN Haijian* | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | happybj2000@qq.com | | MENG Qingwei | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | PAN Guohui | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | SUN Xilin | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | | | LIU Benxin | Techking（Qingdao） Special Tire Technology Research and Development Co.，Ltd | |
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| 中文摘要: |
| 针对高速场景下起重机轮胎胎肩脱层、生热问题，运用有限元分析方法建立纵向花纹445/80R25工程机械轮胎有限元分析模型，进行数值分析和优化及产品性能改善。通过对比分析原始方案轮胎刚性和接地数据的仿真结果与实测结果，验证有限元模型的准确性；优化胎肩部位材料分布，在此基础上采用不同带束层结构方案对胎肩部位受力进行有限元分析，优化带束层端点受力状态。结果表明：胎肩和胎里曲线优化后的B3带束层方案（1#—4#带束层宽度分别为165，103，138，和123 mm）轮胎胎肩部位受力状态最优，达到改善设计目标；B3方案轮胎的耐久性能比原始方案轮胎提升17%，接地印痕矩形率增大，耐磨性能提升；海外目标客户测试显示，B3方案轮胎早期行驶10 000 km无胎肩脱层问题，达到改善目标。 |
| 英文摘要: |
| Aiming at the problem of delamination and heat build-up of crane tire shoulder in high-speed scene，the finite element analysis model of 445/80R25 off-the-road tire with longitudinal tread pattern was established by using the finite element method，and the numerical analysis optimization and product performance improvement were carried out.The accuracy of the finite element model was verified by comparing the simulation results of the tire stiffness and grounding data of the original scheme with test results.The material distribution at the tire shoulder was optimized，and on this basis，used different belt structure schemes to carry out finite element analysis on the stress at the tire shoulder，and optimize the stress state at the end of the belt.The results showed that the B3 belt scheme（1#—4# belt width was 165，103，138 and 123 mm respectively） with optimized shoulder and tire lining curves had the best stress state at the tire shoulder，reaching the design goal of improvement.The test verified that the durability of the B3 scheme tire was 17% higher than that of the original scheme tire，the rectangle ratio of footprint was increased，and the wear resistance was improved.The test of overseas target customers showed that there was no shoulder delamination problem when the B3 scheme tire was driven 10 000 km in the early stage，and the improvement goal was achieved. |
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