Advanced computational modelling for vibration mitigation in guyed towers

用于减轻拉线塔振动的先进计算模型

• 批准号: 396079-2009
• 负责人: McClure, Ghyslaine
• 金额: $ 3.95万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=498625
• 关键词: Advanced; computational; modelling; vibration; mitigation

The proposed research combines the expertise of McGill University in advanced computational procedures for dynamic analysis of cable structures, with the experimental expertise of IREQ (Hydro Québec Research Institute) in cable vibration measurements. The goal is to develop, validate and test an accurate modeling procedure to study the dynamic response of flexible guyed transmission towers with due consideration of conductor-tower-foundation-soil interactions. Calibrated numerical models will serve to develop vibration mitigation solutions for high voltage line supports exposed to severe combined wind and atmospheric icing loads. Hydro Québec's short-term need is the mitigation of vibrations in guy wires which cause fatigue in rock anchor rods, thus reducing their useful life with potential premature and unpredictable failure. A thorough

拟议的研究结合了麦吉尔大学在电缆结构动态分析的先进计算程序的专业知识，以及IREQ（魁北克水电研究所）在电缆振动测量方面的实验专业知识。目标是开发、验证和测试一个精确的建模程序，以研究柔性拉线输电塔的动态响应，并适当考虑导线-塔-基础-土壤的相互作用。经过校准的数值模型将用于为暴露于严重的风和大气结冰载荷的高压线路支架开发减振解决方案。Hydro Québec的短期需求是减轻拉线的振动，这种振动会导致岩石锚杆疲劳，从而缩短其使用寿命，并可能导致过早和不可预测的失效。的透彻