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首页> 外文会议>International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management >Kinematic Synthesis and Analysis of a Watt II Six-Bar Linkage for the Design and Validation of an Open Loop Solar Tracking Mechanism
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Kinematic Synthesis and Analysis of a Watt II Six-Bar Linkage for the Design and Validation of an Open Loop Solar Tracking Mechanism

机译：Watt II六连杆机构的运动学综合与分析，用于开环太阳跟踪机构的设计和验证

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摘要

Tracking mechanisms were found to improve the performance of solar renewable energy systems that contribute to energy sustainability and security. However, the commonly used closed-loop solar trackers require sophisticated equipment that leads to high upfront costs and energy consumption. The literature suggests that simpler open-loop trackers can be sought as a feasible alternative for small-scale applications. In this study, an open-loop solar tracking mechanism was designed through the kinematic synthesis of a Watt II six-bar linkage using Freudenstein’s method and analytical position method. The desired motion of the mechanism was obtained using the solar apparent motion trajectory model. A finite number of precision points were selected using Chebyshev’s spacing to simplify the synthesis while minimizing the error. The design was validated through kinematic analysis using loop closure equations and complex number analysis. The position, velocity, and acceleration behaviors obtained from the numerical method done in MATLAB was compared to that of the graphical method done in MechAnalyzer. The synthesis results hint the special considerations needed in the physical implementation of the design, while the validation results show a general agreement between the results of the numerical and graphical kinematic analyses, implying the effectiveness of the presented methodology.
机译：发现跟踪机制可以改善有助于能源可持续性和安全性的太阳能可再生能源系统的性能。但是，常用的闭环太阳能跟踪器需要复杂的设备，这会导致高昂的前期成本和能耗。文献表明，可以寻求更简单的开环跟踪器作为小规模应用的可行替代方案。在这项研究中，通过使用Freudenstein方法和解析位置方法对Watt II六连杆机构进行运动学综合，设计了一个开环太阳跟踪机制。使用太阳视在运动轨迹模型获得了所需的机构运动。使用切比雪夫（Chebyshev）的间距选择了有限数量的精度点，以简化合成，同时最大程度地减少误差。通过使用闭环方程和复数分析的运动学分析对设计进行了验证。将在MATLAB中进行的数值方法与在MechAnalyzer中进行的图形方法所获得的位置，速度和加速度行为进行了比较。综合结果暗示了在物理实施设计中需要考虑的特殊因素，而验证结果表明了数值和图形运动学分析的结果之间的总体一致性，这表明了所提出方法的有效性。

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