小型賽車Go-kart（或稱KARTING），在國際上屬於方程式賽車（CIK/FIA）的一種，專為競賽而設計的純種車輛；Go-kart（小型賽車）起源於美國，原本是由一群農夫在農餘閒暇時將農機設備改裝而成，之後傳至歐洲，由歐洲國家將它加以研發改良，並推廣至世界各地，所以Go-kart在歐洲風行程度甚高於美國、加拿大等國家。此類車輛本身體積不大，車長約為180cm、車寬約為140cm、整車重量大約位在200~230kg，賽車離地面最高約為3cm。
本研究主要是利用電腦輔助工程分析技術並配合田口方法之實驗設計以研討如何運用最短的時間最省的設計成本來找出小型賽車前保險桿之最佳化結構。
本文先以落錘衝擊實驗作一鋁質空心圓管之撞擊實驗，以加速規測得其加速度之歷程；並以高速攝影機拍攝其鋁質空心圓管受撞擊後之變型狀況。再以商用有限元素分析軟體LS-DYNA模擬撞擊計算分析並比較撞擊實驗和數值模擬結果。由動態實驗結果和數值模擬驗證，模擬的部分與實驗結果大致相符。套用數值模擬所驗證結果之電腦輔助工程分析方式；並運用田口方法將可能影響前保險桿安全性的參數特別列出；如前保險桿之長、寬尺寸，橫斷面（cross-section）外形，材質屬性（金屬材料及複合材料）；並使其搭配呈現最佳化狀態。
本文試著提供設計者一套整合性的最佳化設計方法；以縮短一般在研發設計階段所需花費的時間及成本；期盼能將其商業化並提供汽車相關產業製造生產之參考依據。

Go-kart (or called KARTING), is the one of the formula cars internationally. For purebred vehicles which designs for the competition. Go-kart (KARTING) origins from US, is originally re-equips by farmers in the agricultural leisure the farm machinery equipment, rear-drive to Europe, researches and develops by the European country it the improvement, and promotes to world, therefore Go-kart is in fashion in Europe more than the US and Canada. This kind of vehicles itself volume is not big, the Go-kart’s length is approximately 180cm, the width is 140cm, the weight probably position in 200~230kg, the vehicle race leaves ground 3cm.
This research mainly coordinates experiment the Taguchi method with the computer assistance project analysis technology to design deliberated how utilizes the design cost which the shortest time most saves to discover in front of the small vehicle race optimization of structure the bumper bar.
This article first does hit experiment an aluminum nature hollow circular pipe by the drop hammer impact experiment, accelerates course of the gauging its acceleration; And photographs its aluminum nature hollow circular pipe after the high-speed camera to hit the aberration condition. Again analyzes and compares the hit experiment and the value analogue result by the commercial limited ultimate analysis software LS-DYNA simulation hit computation. By the dynamic experimental result and the value simulation confirmation, the simulation part and the experimental result tallies approximately. Applies mechanically the value simulation to confirm computer of assistance project analysis way the result; Before and possibly will affect the bumper bar secure parameter using the Taguchi method to list specially; If front bumper bar long, width size, cross section (cross-section) contour, material quality attribute (metal material and compound materials); And causes its matching to present the optimization condition.
This article tries to provide the designer a set of conformability optimization design method; Reduceing generally time and the cost which must spend in the research and development design stage. To expect and provide its commercialization the automobile correlation industry manufacture production’s reference.

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