【作者】 杨燕芳；

【导师】 吴晓明；

【作者基本信息】 燕山大学 ， 机械电子工程， 2011， 硕士

【摘要】 蓄能器作为液压系统中的重要辅件,对保证液压系统正常运行、改善其动态品质、保持工作稳定性、延长设备的工作寿命、辅助能源、降低噪声等起着重要的作用。所以,为液压系统选择合适的蓄能器也就显得尤为重要。本文的核心是利用Visual Basic软件设计、编写蓄能器软件包。利用软件包可以方便、快捷和较为准确的计算蓄能器在7种不同工况下的工作参数并进行回路选择与仿真,即使在复杂的仿真过程中也无需打开AMESim仿真界面进行参数设置,只需在VBA编写的Excel界面输入参数进行仿真即可。论文首先论述了蓄能器的性能、用途及类型;其次是总结推导了不同工况下蓄能器工作参数选择条件与计算公式,并且分析了温度、多变指数以及高压校正系数对蓄能器工作参数的影响,这些在软件包中都有所体现;再次,蓄能器在不同工况中发挥着不同的作用,为使蓄能器的作用更加显著,本文对蓄能器在两种典型工况下的作用进行了有无蓄能器的仿真对比研究;最后是蓄能器软件包的编程实现,蓄能器工作参数计算界面主要是利用Visual Basic进行编程,通过循环编程给出了较为精确的工作参数值,并且在后续的仿真结果中也验证了该计算的准确性,接下来根据计算数值可在蓄能器数据库中进行查询,添加蓄能器等动作,查询结果可以给出与计算结果匹配的蓄能器详细信息,然后用户选择要仿真的蓄能器回路在Excel仿真界面进行仿真,该界面通过AMESim中的AMEPilot与AMESim链接,在AMESim中设置用户在Excel仿真界面需要的输入参数与需要观察结果的输出参数,根据右下角的操作提示即可进行仿真分析。更多还原

【Abstract】 As an important auxiliary part in hydraulic system, accumulator plays an important role to ensure normal operation, improve the dynamic quality of the hydraulic system, keep working stability, prolong the working life of equipment, assist energy and reduce noise etc. So, choosing an appropriate accumulator for the hydraulic system is particularly important.The core of this article is using of Visual Basic to design and program accumulator package. The characteristic of this software package is calculating accumulator working parameters under 7 different conditions and making accumulator loop simulation conveniently. Even in the complex process of simulation, it just needs to input parameters in excel interface programmed by VBA (Visual Basic Application) to simulate, does not have to open AMESim to set parameters.In this paper, first is to know the performance, uses and type of the accumulator; Second is summary and deduced accumulator working parameters selection and calculation formula of 7 different working conditions. It also analyzed the effects of the temperature, poly index and high-pressure correction factor to the accumulator working parameters. These are all embodied in the package. Third, accumulator plays a different role in different condition, to make accumulator functions more remarkable, we choose two typical working conditions to do the simulation, each loop did twice one have accumulator the other is without accumulator. The last is programming achieved of software package. Parameter calculation interface basically uses Visual Basic to program, it are given more precise value of accumulator working parameters by cyclic programming; according to the calculated value, it can query accumulator, add items and so on in accumulator access database; then given the matching accumulator detailed information; next, users select the accumulator loop to simulate in Excel interface. The interface links AMESim through the AMEPilot of AMESim. Setting input parameters and output parameters that the users need in the Excel interface in AMESim. There are some operating tips in the lower right corner; you can follow these tips to complete the simulation.更多还原