机械研究与应用
機械研究與應用
궤계연구여응용
MECHANICAL RESEARCH & APPLICATION
2014年
6期
37-38,42
,共3页
薄壁构件%锥形薄壁构件%抗撞性%斜向冲击
薄壁構件%錐形薄壁構件%抗撞性%斜嚮遲擊
박벽구건%추형박벽구건%항당성%사향충격
thin-walled member%cone thin-walled member%crashworthiness%oblique impact
采用有限元软件LS－DYNA进行数值模拟计算，得到圆锥形和方锥形薄壁构件在不同倾斜载荷角冲击下的碰撞响应，并对两种薄壁构件变形模式、吸能特性和最大峰值冲击载荷进行了比较。数值计算结果表明，圆锥形薄壁构件在斜向冲击下的抗撞性能优于方锥形薄壁构件。
採用有限元軟件LS－DYNA進行數值模擬計算，得到圓錐形和方錐形薄壁構件在不同傾斜載荷角遲擊下的踫撞響應，併對兩種薄壁構件變形模式、吸能特性和最大峰值遲擊載荷進行瞭比較。數值計算結果錶明，圓錐形薄壁構件在斜嚮遲擊下的抗撞性能優于方錐形薄壁構件。
채용유한원연건LS－DYNA진행수치모의계산，득도원추형화방추형박벽구건재불동경사재하각충격하적팽당향응，병대량충박벽구건변형모식、흡능특성화최대봉치충격재하진행료비교。수치계산결과표명，원추형박벽구건재사향충격하적항당성능우우방추형박벽구건。
In this paper, through numerical simulation and calculation with the finite element software LS-DYNA, the colli-sion response of cone thin-walled members and quadrate-tapered thin-walled members under different oblique impact are ob-tained, and then the deformation pattern, energy absorption characteristics and the maximum impact of these two different thin-walled members are compared.The calculation results show that the crashworthiness of cone thin-walled member is better than that of quadrate-tapered one under the oblique impact.
