结构工程师
結構工程師
결구공정사
STRUCTURAL ENGINEERS
2014年
3期
33-40
,共8页
新型护栏%概念设计%结构分析%数值仿真
新型護欄%概唸設計%結構分析%數值倣真
신형호란%개념설계%결구분석%수치방진
guardrail%conceptual design%structure analysis%numerical simulation
通过对传统护栏结构特点及其防撞性能总结的基础上,以生命安全为主体概念设计开发出了一种新型防撞护栏结构形式,对其在结构上的概念理论进行了分析;另外基于动态显式有限元法采用Hyperworks 及 LS-DYNA 软件,采用重型车辆模型和4组护栏模型,建立了4组车辆-护栏的耦合系统碰撞仿真模型。通过对护栏防撞性能、导向性能及安全性能方面进行多角度分析,探讨了新型式护栏形式的结构性能及综合性防撞性能。
通過對傳統護欄結構特點及其防撞性能總結的基礎上,以生命安全為主體概唸設計開髮齣瞭一種新型防撞護欄結構形式,對其在結構上的概唸理論進行瞭分析;另外基于動態顯式有限元法採用Hyperworks 及 LS-DYNA 軟件,採用重型車輛模型和4組護欄模型,建立瞭4組車輛-護欄的耦閤繫統踫撞倣真模型。通過對護欄防撞性能、導嚮性能及安全性能方麵進行多角度分析,探討瞭新型式護欄形式的結構性能及綜閤性防撞性能。
통과대전통호란결구특점급기방당성능총결적기출상,이생명안전위주체개념설계개발출료일충신형방당호란결구형식,대기재결구상적개념이론진행료분석;령외기우동태현식유한원법채용Hyperworks 급 LS-DYNA 연건,채용중형차량모형화4조호란모형,건립료4조차량-호란적우합계통팽당방진모형。통과대호란방당성능、도향성능급안전성능방면진행다각도분석,탐토료신형식호란형식적결구성능급종합성방당성능。
Based on structural feature and crashworthiness analyses of the traditional guardrails,this paper proposes a new type guardrail.This new guardrail was designed based on the concept of life safety.The design concept was analyzed and then the four dynamic simulation models of vehicle-guardrail collision systems were set up by using the dynamic explicit finite element method.With the Hyperworks and LS-DYNA software, simulations were performed.A comprehensive crashworthiness of the new guardrail was analyzed in the aspects of anti-collision performance,guiding performance and safety performance.