摩托车车架主管是摩托车的主要承载构件，设计时要进行可靠的强度计算。
The tubular backbone is the main loading member of motorcycle frame, which needs reliable strength calculation when designing.
以某型号的摩托车车架实物为基础，使用三维造型软件UG进行实体造型，在前后处理MSC。
Based on a type of motorcycle frame, this paper USES the UG software for entity sculpt combining some parts drawing, and grids in the pre-disposing and post-disposing software MSC.
在摩托车车架等构件中，立体转角管状零件各圆弧均不共面，在普通弯管机上没有空间转角功能；
The arcs of tubular parts with stereo turning angles are not coplanar. Ordinary bending machine can not bend a space turning angle.
然后做了某摩托车车架的静力分析、模态分析、特殊工况分析、工作过程瞬态分析和疲劳强度分析。
The static analysis, modal analysis, special condition analysis, transient analysis during its working process and fatigue analysis of the main frame were done.
以一新型运动型多功能休闲摩托车车架为研究对象，采用有限元模态分析的方法，对车架振动模态进行了分析。
The frame of a new style motorcycle named Sport Recreation Vehicle (SRV) was researched. Using the finite element mode analysis method, the vibration mode of motorcycle frame was analyzed.
应用虚拟样机技术，首先建立摩托车虚拟样机设计系统的结构，对摩托车车架的动态特性、发动机的惯性激振力进行了分析。
Using the technique of virtual prototype, it sets up the model of motorcycle dynamic design, establishes the system framework of motorcycle virtual prototype.
利用有限元方法对摩托车车架动态特性进行了分析计算，并通过实验模态方法进行了相应的实验验证，获得了车架模态参数和振型。
It is analyse and calculation about the dynamic characteristic of motorcycle frame by FEM model, carry on validation through experimental modal method, Get back frame modal parameter and shake type.
运用本系统，用户只需通过简单的填写菜单就可以完成摩托车车架的静强度分析、模态分析、瞬态分析，并据此对车架进行疲劳寿命估算。
Customer can accomplish modal, static and transient analysis easily by filling in some menu. Based on this, a fatigue life of motorcycle frame was estimated.
同时给出了利用有限元法对沙滩摩托车车架建模及模态分析的计算过程，并针对不足之处提出了改进意见，为车架的进一步分析提供依据。
The finite element modeling and mode analysis calculation to ATV motorcycle frame are introduced. Improved opinions are suggested to provide some reasons for further analysis.
同时给出了利用有限元法对沙滩摩托车车架建模及模态分析的计算过程，并针对不足之处提出了改进意见，为车架的进一步分析提供依据。
The finite element modeling and mode analysis calculation to ATV motorcycle frame are introduced. Improved opinions are suggested to provide some reasons for further analysis.
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