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鹽城工學院本科生畢業(yè)設計說明書 2007
“遠艦”轎車雙擺臂懸架的設計及產品建模
摘要：汽車雙擺臂懸架是一種常見的懸架形式，合理的選擇懸架的結構和幾何尺寸是獲得滿意的汽車行駛性能的重要條件，其運動特性的優(yōu)劣關系到汽車操縱穩(wěn)定性，舒適性，轉向輕便性和輪胎的使用壽命等性能。本課題來源于東風悅達起亞汽車制造有限公司的遠艦款轎車的后懸架，雙擺臂懸架可以通過合理的選擇空間導向桿系的鉸接點的位置及導向臂的長度，使得懸架具有合適的運動特性。在設計中，首先，分析了雙擺臂獨立懸架的組成和功用；其次，進行雙擺臂懸架的上下擺臂及各零部件強度的校核；第三，詳細考慮各部件之間的連接關系；最后計算了懸架自然振動頻率，懸架靜撓度和動撓度以及懸架彈性特性。在分析雙擺臂懸架的組成和作用以及確定各零部件的尺寸的基礎上，運用CAD軟件和Pro/E軟件分別進行二維繪圖和三維建模。此次課題進行了準確的計算和詳細的結構分析，為雙擺臂懸架的結構優(yōu)化提供了依據，從而在運動學和動力學方面提高汽車的性能。
關鍵詞：雙擺臂懸架；汽車；設計；建模
The Design and Product modeling
of Double Wishbone Suspension of“Optima”Car
Abstract：The double-wishbone independent suspension is one of the common forms of motor vehicle suspension. Choosing the geometry parameters of the independent suspension reasonably is one of the important conditions to obtain the satisfied character of service. Its state of motion is related to handling stability, comfort ability, handling of steering and the life of tire, ect. The subject comes from the rear suspension of “optima” car which made by DYK Co. Ltd. The double-wishbone suspension can be a reasonable choice of space-oriented bar articulated point. The location and orientation of the suspension arm length can produce suitable motions. This thesis first analyzes the consists and function of the double-wishbone suspension in the design, then checks the up and down of arms of the double-wishbone independent suspension, Thirdly, make a detailed consideration of the various components of the link between relations is made. I calculate the suspension on the basis of the natural vibration frequency, static suspension deflection and dynamic deflection and elastic characteristics of the suspension terms at last. On the basis of Analysis of the composition and role of the size of the components in the double-wishbone independent suspension, with CAD software and Pro / E, respectively, 2D drawings and 3D product Modeling are made. We made an accurate and detailed structural analysis on the design, which provides the?reference for optimal design of the double-wishbone suspension. The approach can improve the?performance of the double-wishbone independent suspension.
Keyword: double-wishbone suspension; motor vehicle; Design; Modeling