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首页> 外文期刊>International journal of crashworthiness >Development of a wire rope model for cable guardrail simulation
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Development of a wire rope model for cable guardrail simulation

机译：开发用于电缆护栏仿真的钢丝绳模型

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Cable guardrail systems have received increased attention due to their low installation cost and excellent safety performance. This has led to an increase in the use of non-linear finite element modelling for the design and analysis of such systems. However, wire rope models previously used were not validated with physical testing. Thus, an improved non-linear finite element analysis model of 19-mm diameter 3×7 wire rope commonly used in roadside cable guardrail installations was developed. Component tests were conducted on wire rope, and consisted of quasi-static tension and cantilever bending tests, high-speed jerk tests of wire rope constrained at one end and perpendicular impacts of wire rope constrained at both ends. Simulation of these tests indicated favourable comparison of bogie vehicle motion and wire rope tension with test results, and was significantly more accurate than previously developed models. Application of the new wire rope model to a full-scale impact on a cable guardrail system indicated good comparison of the new wire rope model with the wire rope reactions in the full-scale test.
机译：电缆护栏系统因其较低的安装成本和出色的安全性能而受到越来越多的关注。这导致非线性有限元建模在此类系统的设计和分析中的使用增加。但是，先前使用的钢丝绳模型未经物理测试验证。因此，开发了一种改进的非线性有限元分析模型，该模型通常用于路边电缆护栏装置中，直径为19mm的3×7钢丝绳。组件测试在钢丝绳上进行，包括准静态拉力和悬臂弯曲测试，一端受约束的钢丝绳的高速冲击试验以及两端受约束的垂直冲击力。对这些测试的仿真表明，转向架车辆的运动和钢丝绳的张力与测试结果进行了有利的比较，并且比以前开发的模型准确得多。将新的钢丝绳模型应用于对电缆护栏系统的全面冲击表明，在全面测试中，新钢丝绳模型与钢丝绳反应具有良好的比较。

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