Consideration of the Interaction of Lateral and Torsional Vibrations to Improve the Safe Operation of Reciprocating Compressors**********

往复式压缩机广泛应用于加拿大的石油和天然气行业。该设备的安全运行对油气安全高效生产至关重要。往复式压缩机在运行过程中会经历两种或两种以上的机械负荷，这些负荷会重复数百万次。由于多次机械振动引起的疲劳，压缩机可能比预期更早失效。本课题的目的是确定不同振动类型的相互作用，以减少往复式压缩机的机械故障。**该项目将评估往复式压缩机经历两种或两种以上振动时的应力和变形情况。这些振动相互作用，复合效应可能导致机械故障的快速发生，比预期的要早得多。利用数学公式，将开发一个计算机模型和工具来解释多重振动的综合影响。因此，将精确预测各种输入条件下的最大应力和裂纹扩展速率，包括轴向、横向和扭转振动。**这个项目的新颖之处在于将前沿研究转化为一种工业工具，用于新型往复式压缩机的安全设计和现有压缩机的安全运行。该项目是由卡尔加里一家专门从事往复式压缩机振动分析的研发公司提出的。该公司一直在开发一种专门的振动分析软件，以补充现有的商业产品。该项目将开发一种有效的工具，用于增强振动分析，并将在公司的软件中实施。结果将提高公司的市场竞争力，并为加拿大石油和天然气行业提供更安全的压缩机操作。此外，研究生将从这个项目中获得对工业挑战的深刻理解。********

Reciprocating compressors are widely used in the Canadian oil and gas industry. The safe operation of this equipment is essential for the safe and efficient production of oil and gas. A reciprocating compressor experiences two or more types of mechanical loadings that are repeated millions of times during operations. Compressors may fail much earlier than expected due to fatigue caused by multiple mechanical vibrations. The purpose of the proposed project is to determine the interaction of different types of vibrations in order to reduce the mechanical failures of reciprocating compressors.** The project will assess the stress and deformation regime when a reciprocating compressor experiences two or more types of vibrations. These vibrations interact with each other and the compounded effects may cause a fast mechanical failure much earlier than expected. Using mathematical formulations, a computer model and tool will be developed to account for the combined effects of multiple vibrations. Therefore, the maximum stress and crack propagation rate for a variety of input conditions, including axial, lateral and torsional vibrations, will be precisely predicted.** The novelty of this project is to translate cutting-edge research into an industrial tool for the safe design of new reciprocating compressors and for the safe operation of existing ones. The project is proposed by a Calgary-based R&D company that specializes in vibration analysis of reciprocating compressors. The company has been developing a specialized software for vibration analysis to complement existing commercial offerings. The project will develop an effective tool for enhanced vibration analysis that will be implemented in the company's software. The outcome will be improved market competitiveness for the company and safer operations of the compressors for Canadian oil and gas industry. In addition, graduate students will gain an excellent understanding of industrial challenges from working on this project.********