顯示動力學(xué)分析——跌落沖擊有限元分析如何定義材料的參數(shù)？ 100
模型建立之初，定義了Gernal Contact,以及各部件的接觸。定義 了跌落接觸時的速度，分析時間。選擇顯示分析。材料為橡膠，選擇的是超彈性Yeoh模型，并將D1設(shè)置在了合適的Warning提示的范圍。
結(jié)果還是出現(xiàn)錯誤，如下：
問題：
1. Node 1 instance dadi-1 is used as a reference node for more than one rigid body property definition. Each rigid body property definition must have a unique reference node
2. D1 FOR HYPERELASTIC MATERIAL IS TOO SMALL. THIS LEADS TO A VERY HIGH BULK MODULUS. A SUGGESTED VALUE FOR D1 IS BETWEEN 1.46263E-02 AND 3.65657E-02. D2, D3...etc ARE SUGGESTED TO BE SCALED PROPORTIONALLY IF THEY ARE NON-ZERO. ANALYSIS USING SINGLE PRECISION MAY RESULT IN A NOISY SOLUTION. IT IS THEREFORE RECOMMENDED THAT THE ANALYSIS BE RUN IN DOUBLE PRECISION.
D1 FOR HYPERELASTIC MATERIAL IS TOO SMALL. THIS LEADS TO A VERY HIGH BULK MODULUS. A SUGGESTED VALUE FOR D1 IS BETWEEN 1.11496E-02 AND 2.78741E-02. D2, D3...etc ARE SUGGESTED TO BE SCALED PROPORTIONALLY IF THEY ARE NON-ZERO. ANALYSIS USING SINGLE PRECISION MAY RESULT IN A NOISY SOLUTION. IT IS THEREFORE RECOMMENDED THAT THE ANALYSIS BE RUN IN DOUBLE PRECISION.
D1 FOR HYPERELASTIC MATERIAL IS TOO SMALL. THIS LEADS TO A VERY HIGH BULK MODULUS. A SUGGESTED VALUE FOR D1 IS BETWEEN 2.84793E-02 AND 7.11983E-02. D2, D3...etc ARE SUGGESTED TO BE SCALED PROPORTIONALLY IF THEY ARE NON-ZERO. ANALYSIS USING SINGLE PRECISION MAY RESULT IN A NOISY SOLUTION. IT IS THEREFORE RECOMMENDED THAT THE ANALYSIS BE RUN IN DOUBLE PRECISION.
3.像法蘭是否需要施加質(zhì)量，即inertia，需要定義什么樣的慣性力。
想問問各位怎么解決這個問題。
小月 
