欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
基于认识关节软骨在定负荷与正弦负荷交变作用下的变形特征，采用UMT-2型多功能试验机对牛膝关节软骨的压缩变形进行测定．基于五点滑动平均法对测得压缩变形进行分解，提取相应的波动变形量；通过傅立叶变换获得交变负荷和变形对应的幅值和相位．结果表明，交变负荷产生的压缩变形高于定负荷的变形．交变负荷形成的压缩变形是由稳态非线性增长变形量和瞬时波动变形量组成．交变负荷幅值对非线性增长变形量的影响较小，而对瞬时波动变形量有着显著影响．交变负荷幅值对负荷与变形的幅值比和变形滞后于负荷的相位差影响较小，其幅值比和相位差分别约为9．1和0．25．
英文摘要：
Based on understanding the deformation characteristic of articular cartilage affected by alternating loads of constant load and sine load, the indentation deformation of bovine knee articular cartilage was measured using an UMT-2 Multi-Specimen test-bed. Indentation deformations were decompounded by five-point sliding average method to gain the relevant wavy deformation. Magnitudes and phases corresponding to alternating load and deformation were obtained by Fourierism transform. The results show that the indentation deformation produced by alternating load is obviously higher than that by constant load. The indentation deformation of alternating load is composed of the stably nonlinear increase and the instantaneously wavy. The magnitudes of alternating load play a less role on the deformation of nonlinear increase, and bigger influence on the instantaneously wavy deformation. The load magnitude play a less role on the ratio of alternating load to deformation and phase difference of deformation lagging load. The ration and phase difference is about 9.1 and 0. 25, respectively.
同期刊论文项目
同项目期刊论文
Comparison of tribological behavior of nylon composites filled with zinc oxide particles and whisker
Biotribological behavior of ultra high molecular weight polyethylene composites containing bovine bo
Research on the structure characterization and the biotribological behaviors of PVA/HA composite hyd
Research on the Long Time Swelling Properties of Poly (vinyl alcohol)/Hydroxylapatite Composite Hydr
Research on the friction and wear mechanism of poly(vinyl alcohol)/hydroxylapatite composite hydroge
Biotribological behavior of ultra high molecular weight polyethylene composites filled with nano-ZrO
Load Dependence of Nanohardness in Nitrogen Ion Implanted Ti6Al4V Alloy and Fractal Characterization
期刊信息
位置：