本文選題：萬能轉(zhuǎn)換開關(guān) + 有限元分析　； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：萬能轉(zhuǎn)換開關(guān)是一種多檔式,控制多個回路的主令電器,萬能轉(zhuǎn)換開關(guān)主要用于多種控制線路的轉(zhuǎn)換、配電裝置線路的遙控和轉(zhuǎn)換、電壓表的換相測量控制等。萬能轉(zhuǎn)換開關(guān)是一種手動操作的低壓電器產(chǎn)品,通�；谕馆喰螤詈团帕械母淖�,控制由多個觸頭組成的接觸系統(tǒng)的工作狀態(tài)以達到各種不同的需求。萬能轉(zhuǎn)換開關(guān)其核心部分是控制其工作狀態(tài)的凸輪機構(gòu)。傳統(tǒng)的設(shè)計流程一般都是根據(jù)實際的需求和規(guī)格,通過設(shè)計人員設(shè)計凸輪的簡單幾何形狀和運動狀態(tài)來滿足從動件的簡單運動要求。確定設(shè)計方案后,便開始開模生產(chǎn)試驗樣件,產(chǎn)品的各項測試都在樣件制作完成之后才能進行因此問題如果一旦發(fā)生,不僅需要增加必需的設(shè)計成本,而且相關(guān)的前期工作也需要去改動,問題如果發(fā)生的越晚,重新設(shè)計所付出的的成本增加的越多,會帶來大量的重復(fù)設(shè)計工作,還有延長設(shè)計研發(fā)周期,帶來更大的損失,所以預(yù)估產(chǎn)品的特性就成為了產(chǎn)品在設(shè)計過程中的重要環(huán)節(jié)。本課題主要針對OC25型萬能轉(zhuǎn)換開關(guān)作為研究對象,使用ANSYS/LS-DYNA顯式動力學(xué)對萬能轉(zhuǎn)換開關(guān)主要工作部分的工作情況進行動態(tài)模擬仿真,通過UG對萬能轉(zhuǎn)換開關(guān)的幾何模型進行修改,并通過接口將幾何模型導(dǎo)入ANSYS/LS-DYNA建立適當(dāng)?shù)挠邢拊Ｐ瓦M行分析,分別通過ANSYS和LS-DYNA的后處理器對萬能轉(zhuǎn)換開關(guān)在工作過程中的應(yīng)力分布,應(yīng)力隨時間的變化,各零件之間相互接觸的情況和接觸力等結(jié)果進行分析,通過預(yù)估萬能轉(zhuǎn)換開關(guān)的工作情況,對萬能轉(zhuǎn)換開關(guān)進行分析,并提出優(yōu)化的方法。在動力學(xué)仿真過后,通過分析動力學(xué)仿真結(jié)果,選取轉(zhuǎn)換開關(guān)的部分參數(shù)進行優(yōu)選,主要通過分析不同的參數(shù)對萬能轉(zhuǎn)換開關(guān)的工作狀態(tài)的影響,擬合出各參數(shù)與萬能轉(zhuǎn)換開關(guān)工作狀態(tài)的關(guān)系,找出較為良好的數(shù)值,從而達到對萬能轉(zhuǎn)換開關(guān)的優(yōu)化效果,提高萬能轉(zhuǎn)換開關(guān)的產(chǎn)品質(zhì)量。
[Abstract]:Universal switching switch is a kind of multi-stage main control device which controls multiple circuits. The universal switch is mainly used for the conversion of various control lines, the remote control and conversion of distribution line, the measurement and control of voltmeter commutation, etc. Universal switch is a manual operation of low-voltage electrical products, usually based on the shape and arrangement of the cam changes, control the working state of the contact system composed of multiple contacts to achieve a variety of requirements. The core part of universal switch is the cam mechanism which controls its working state. The traditional design flow is generally according to the actual requirements and specifications through the design of the simple geometric shape and motion state of the cam to meet the simple motion requirements of the follower. Once the design plan has been determined, we begin to open the mold to produce the test sample, and all tests of the product can only be carried out after the sample has been made, so if the problem arises, not only will the necessary design cost be increased, And the related preliminary work also needs to be changed. The later the problem occurs, the more the cost of the redesign will increase, which will lead to a lot of repetitive design work, as well as the extension of the design research and development cycle and the greater loss. Therefore, estimating the characteristics of the product has become an important part of the design process. This paper mainly aims at the OC25 universal converter switch as the research object, uses ANSYS/LS-DYNA explicit dynamics to simulate the main working part of the universal converter switch, and modifies the geometric model of the universal converter switch by UG. Then the geometric model is imported into ANSYS/LS-DYNA to establish the appropriate finite element model for analysis. The stress distribution and the change of stress with time during the operation of universal switch are analyzed by the post-processor of ANSYS and LS-DYNA, respectively. The results of contact and contact force between different parts are analyzed. By predicting the working condition of universal switch, the universal switch is analyzed, and the optimization method is put forward. After dynamic simulation, by analyzing the results of dynamic simulation, some parameters of switching switch are selected for optimal selection, mainly by analyzing the influence of different parameters on the working state of universal switching switch. The relationship between the parameters and the working state of the universal converter switch is fitted, and a better numerical value is found, thus the optimization effect of the universal converter switch is achieved and the product quality of the universal converter switch is improved.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM564

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本文編號：1811170