Differential Collision Models

微分碰撞模型

• 批准号: 0100137
• 负责人: Donald Quinn
• 金额: $ 13.18万
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0100137&HistoricalAwards=false
• 关键词: Differential; Collision; Models

This project is aimed at conducting a dynamic analysis of the control and containment requirements for a high performance, axial piston, hydrostatic pump. Over the last thirty years, a great deal of information has been added to the literature which describes the control requirements for a standard swash-plate pump design; however, virtually nothing has been written on the topic of swash-plate containment. Also, within the pump industry itself, a few innovative companies have identified certain advantages in using a non-standard swash-plate design, which utilizes a variable primary swash-plate angle and a fixed secondary swash-plate angle; but, again, nothing has been added to the literature to generally describe and apply these advantages to a broad range of pump designs. In this ascertain the control and containment requirements for this design. Furthermore, this work will go a step beyond current-day practice by considering the general case when both the primary and secondary swash-plate angles vary. The outcome of this study will be to identify the mechanical and control requirements for this novel machine and to theoretically prove the advantages of implementing the design.If successful, the work of this research will be used to significantly enhance the performance of axial piston pumps that are widely used in fluid power applications today. The improved performance will be demonstrated in increased operating efficiency and quieter pumps. These improvements will be achieved by optimizing the internal pressure transients of the pump for operating conditions that may vary over a wide range during the normal duty cycle of the machine. A secondary impact will be to reduce valve-plate erosion within the pump. The overall objectives of this work are reduce waste and to increase the productivity of axial-piston pump technology. The successful accomplishment of these objectives will manifest itself in lower pump operating costs, longer product life, and a reduction in engineering time for product maintenance and design.

本项目旨在对高性能轴向柱塞式静液压泵的控制和密封要求进行动态分析。在过去的三十年里，大量的信息被添加到描述标准斜板泵设计的控制要求的文献中；然而，几乎没有关于斜板密封的文章。此外，在泵行业本身，一些创新的公司已经确定了使用非标准斜板设计的某些优势，这种设计利用了可变的主斜板角度和固定的次斜板角度；但是，同样地，文献中没有增加任何内容来概括描述这些优势并将其应用于广泛的泵设计。在这方面，确定该设计的控制和遏制要求。此外，这项工作将超越目前的做法，考虑一般情况下，一次和二次斜板角度都不同。这项研究的结果将是确定这种新型机器的机械和控制要求，并从理论上证明实施该设计的优势。如果成功，这项研究工作将用于显著提高目前广泛应用于流体动力应用的轴向柱塞泵的性能。性能的提高将体现在运行效率的提高和泵的静音上。这些改进将通过优化泵的内部压力瞬变来实现，以适应在机器正常占空比期间可能在很大范围内变化的操作条件。二次影响将是减少泵内的阀板侵蚀。这项工作的总体目标是减少浪费，提高轴向柱塞泵技术的生产率。这些目标的成功实现将体现在泵的运行成本更低、产品寿命更长以及产品维护和设计的工程时间缩短。