CAJ | 학술논문

目的研究蓖麻籽在不同状态不同压榨方式下压缩比－轴向应力关系。方法进行了完整蓖麻籽与碾碎后的蓖麻籽在不同的压榨方式、不同的压榨速率下的冷榨试验；采用川北方程建立了双曲线型压缩比－轴向应力关系模型，并依据试验结果，应用最小二乘法求得该模型的待定参数。结果和结论蓖麻籽碾碎后压榨在相同的条件下所达到的等价压缩比和完整籽基本一致，但实际压缩比比完整籽小得多；多次压榨在相同的条件下比单次压榨可以达到更大的压缩比；模拟值与实测值的对比和误差分析表明，模拟值与实测值比较吻合。
목적연구비마자재불동상태불동압자방식하압축비－축향응력관계。방법진행료완정비마자여년쇄후적비마자재불동적압자방식、불동적압자속솔하적랭자시험；채용천북방정건립료쌍곡선형압축비－축향응력관계모형，병의거시험결과，응용최소이승법구득해모형적대정삼수。결과화결론비마자년쇄후압자재상동적조건하소체도적등개압축비화완정자기본일치，단실제압축비비완정자소득다；다차압자재상동적조건하비단차압자가이체도경대적압축비；모의치여실측치적대비화오차분석표명，모의치여실측치비교문합。
Objective]To study the relationship of compression ratio between axial stress and castor seeds in different states with different squeeze methods .[Method]Cold pressing tests of complete and crushed castor seeds were accomplished in different squeeze ways with different squeeze rates .Hyperbolic com-pression relationship model between ratio and stress was developed on the basis of the Kawakita 's equa-tions.The parameters of the model were determined by the least square method according to the tested re -sults.[Result and conclusion] The results showed that crushed castor seeds achieved an equivalent com-pression ratio consistent with complete ones , while the actual compression ratio was much smaller than that of the complete seeds .Pressing repeatedly under the same conditions can achieve a greater compres-sion ratio than that of a single press .Simulated values and measured values matched well by comparison of values and their error analysis .