機(jī)械原理第六章動(dòng)平衡(編輯修改稿)
2025-02-12 14:05 本頁面
【文章內(nèi)容簡介】 ius production and its angular location needed to statically balance the system. Solution: 1. Resolve the position vectors into xy ponents : R1= θ1=176。 。 R1x=,R1y= 1. R2= θ2= 176。 。 R2x=+,R2y= ? Solve equations mbRbx=m1R1xm2R2x=()()()()= 1. mbRby=m1R1ym2R2y=()()( ? Solve equations Solution: 4. The massradius product can be obtained with a variety of shapes. When Rb= at required angle of 176。 ,the mass for this counterweight design is then: mb=4. at the chosen radius of Rb= 167。 63 Calculation for the dynamic balancing of a rigid rotor剛性回轉(zhuǎn)體的動(dòng)平衡 1. geometric condition B/D 1/5 Mass maybe unevenly distributed both rotationally around their axis and also longitudinally along their axis. F1 F2 F3 r1 m1 m2 r2 m3 r3 ∑Fi = 0 centrifugal forces ∑Mi = 0 centrifugal moment F F Ⅰ F Ⅱ 3. Correction planes To correct dynamic imbalance requires either adding or removing the right amount of mass at the proper angular locations in two correction planes seperated by some distance along the shaft.
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