機車液壓式煞車掣動器輕量化設計

Abstract

本研究以機構設計者的觀點為出發點，利用有限元素分析以及應力量測，建立一套產品設計的模式。 研究方式為根據設定的產品規格，以製造性與功能性兩大取向設計出成品，再以有限元素分析並模擬此液壓式煞車掣動器之作用機制，藉此，可針對本文中提出的各種實際情況，進行分析預測工作，並從中瞭解各主要構件之力學特性分析結果，以期在設計階段就能清楚掌握產品的特性。再者，在此產品設計的模式下，也可從中得到產品輕量化的方向及其準則，進一步提出新的設計，根據這樣的程序，最後以新設計的產品並利用應力量測來重複確認有限元素的分析結果，以達到設計輕量化的目的。 在本研究結果中得知，此有限元素分析出來的結果與實際量測的結果相吻合，證明模擬此液壓式煞車掣動器之作用機制是正確的，且成功的利用分析結果將煞車掣動器的重量降低了31.9%。

Started with the view of the structural designer, this study establishes a product design mode by the use of the finite element analysis and stress measurement. Based on the specified specifications of the product, the research focuses on two factors of manufacturability and function to design the product, then analyzes and simulates the function mechanism of the hydraulic brake caliper by the finite element analysis, through which various actual situations proposed by this paper can be analyzed and predicted, so that the result from the mechanical property analysis of each main structural component can be understood, and the product feature can be clearly mastered in the phase of design. In addition, the weight lightening and its rule can be achieved in this product design mode and new design might be further proposed. Following this procedure, the finite element analysis result of the last designed product is repeatedly confirmed by the stress measurement in order to achieve the purpose of weight lightening. The research shows that the result of the finite element analysis matches the actual measurement, which demonstrates the function mechanism of simulating this hydraulic brake caliper is correct and successfully reduces the weight of the hydraulic brake caliper by 31.9% through the use of the analysis result.