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三線擺法測(cè)量復(fù)雜構(gòu)件轉(zhuǎn)動(dòng)慣量的誤差分析
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    摘要:

    闡述了三線擺法測(cè)量復(fù)雜構(gòu)件轉(zhuǎn)動(dòng)慣量的原理及步驟，提出了利用轉(zhuǎn)動(dòng)慣量方程組來(lái)求解慣性積的方法。分析得出，對(duì)三線擺測(cè)試系統(tǒng)測(cè)量轉(zhuǎn)動(dòng)慣量的算式推導(dǎo)過(guò)程中的簡(jiǎn)化誤差可達(dá)0.28%，使用三線擺法測(cè)量復(fù)雜構(gòu)件的轉(zhuǎn)動(dòng)慣量，測(cè)量上下圓盤的半徑、物體的質(zhì)量、擺動(dòng)周期等參數(shù)所引起的誤差較大，累積各參數(shù)的測(cè)量誤差可達(dá)5%。在詳細(xì)分析論證的基礎(chǔ)上，提出了減小誤差的具體措施。

    Abstract:

    The principle and procedures of trilinear pendulum which is used to test the moment of inertia of complex components are elaborated. The equations of moment of inertia are presented to obtain the product of inertia. By analyzing the equations deduction of trilinear pendulum, the simplified error can be 0.28%. The parameters of the radius of upper and down round plates, the mass of objects, the cycle of swinging can be calculated through the method of trilinear pendulum, but the errors are greater and the aggregated measuring errors of the parameters can reach 5% or above. Based on the detailed analysis and provement, the methods of decreasing errors are proposed. 

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張代勝,胡璽良,袁玲.三線擺法測(cè)量復(fù)雜構(gòu)件轉(zhuǎn)動(dòng)慣量的誤差分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(3):37-40.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(3):37-40.

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