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  • 會議論文

Dynamic Balancing Mass Design for the Crank of Reciprocating Compressor

往復式空壓機之曲軸動力平衡質量設計

摘要


往復式空壓機無法被廣泛應用的原因,主要受限於它的振動大與噪音高。本研究的主要目標在設計一動平衡配重塊,以用於抑制往復式空壓機的振動。首先,吾人建立一套分析曲軸配重與曲柄連桿機構受力的方法,並計算出這些數值;經由數值模擬與實驗比對,得知兩者誤差小於6%,並依據彈性理論及使用結構有限元素方法,吾人針對一台功率2HP的單缸往復式空壓機,可以分析出它的三維的振動模態與共振頻率。研究中,設計不同的曲軸幾何尺寸對於達成本研究目的影響也將被提出。

並列摘要


The wide application of reciprocating compressor is limited by their high vibration and acoustic noise. This study is aiming for design and analysis of the dynamic balancing counterweight (so-called sprung mass) for practical vibration suppression of reciprocating compressors. First, an analytical method for computing the counterweight of the crank and the force of the crankshaft connecting rod system is established and computerized. Use of structural finite element method and elasticity theory, 3D vibration modes and resonant frequencies of a 2 hp commercialized reciprocating compressor with single cylinder is analysed via numerical and experimental simulation within 6% error. Different geometric size design of the crank is proposed for bettering implementation.

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