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The NASA/industry Design Analysis Methods for Vibrations (DAMVIBS) program: Sikorsky Aircraft: Advances toward interacting with the airframe design process

机译:NASA /工业振动设计分析方法(DAMVIBS)计划:西科斯基飞机:与机体设计过程互动的进展

摘要

A short history is traced of the work done at Sikorsky Aircraft under the NASA/industry DAMVIBS program. This includes both work directly funded by the program as well as work which was internally funded but which received its initial impetus from DAMVIBS. The development of a finite element model of the UH-60A airframe having a marked improvement in vibration-predicting ability is described. A new program, PAREDYM, developed at Sikorsky, which automatically adjusts an FEM so that its modal characteristics match test values, is described, as well as the part this program played in the improvement of the UH-60A model. Effects of the bungee suspension system on the shake test data used for model verification are described. The impetus given by the modeling improvement, as well as the recent availability of PAREDYM, has brought for the first time the introduction of low-vibration design into the design cycle at Sikorsky.
机译:在美国宇航局/行业DAMVIBS计划下,西科斯基飞机所做的工作的历史很短。这既包括由计划直接资助的工作,也包括内部资助但受到DAMVIBS最初推动的工作。描述了UH-60A机体的有限元模型的开发,该模型在振动预测能力方面有显着改善。描述了由Sikorsky开发的新程序PAREDYM,该程序会自动调整FEM,以便其模态特性与测试值匹配,以及该程序在UH-60A模型改进中所起的作用。描述了蹦极悬挂系统对用于模型验证的振动测试数据的影响。建模改进的推动力以及PAREDYM的最新推出,首次将低振动设计引入了Sikorsky的设计周期。

著录项

  • 作者

    Twomey William J.;

  • 作者单位
  • 年度 1993
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  • 原文格式 PDF
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  • 入库时间 2022-08-20 20:30:13

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