【摘要】：發(fā)動機(jī)是一種重要的熱能動力機(jī)械，廣泛地應(yīng)用于各種車輛、船舶和工程機(jī)械中，是這些機(jī)械設(shè)備的核心動力。發(fā)動機(jī)工作時存在諸如汽缸內(nèi)的燃?xì)鈮毫�、活塞、連桿等不平衡質(zhì)量運(yùn)動產(chǎn)生的不平衡慣性力和慣性力矩等，極易激發(fā)其配套車、船機(jī)械及環(huán)境設(shè)備整體或局部的強(qiáng)烈振動，，嚴(yán)重可能損壞零部件、縮短發(fā)動機(jī)及相關(guān)零部件的壽命，對一些特殊用途設(shè)備及敏感部件甚至?xí)䴓?gòu)成更為嚴(yán)重的威脅。 本文以某型特殊用途V16發(fā)動機(jī)裝配的電控模塊LOP、ECS振動控制為需求背景，研究一套針對此類發(fā)動機(jī)及其相關(guān)模塊進(jìn)行隔振設(shè)計的方法（為便于敘述通用隔振系統(tǒng)設(shè)計方法的研究，以下文中對被隔振模塊簡稱發(fā)動機(jī)部件），具體工作流程如下： 1）依據(jù)發(fā)動機(jī)運(yùn)動學(xué)和動力學(xué)相關(guān)理論，分析發(fā)動機(jī)內(nèi)部振動激勵力特性，得出發(fā)動機(jī)工作時相關(guān)部件所承受的激勵載荷。 2）建立發(fā)動機(jī)部件隔振系統(tǒng)優(yōu)化設(shè)計模型，選用適當(dāng)算法進(jìn)行求解計算，得到發(fā)動機(jī)部件隔振系統(tǒng)的支撐位置、支撐角度和彈性支撐元件的物理參數(shù)。 3）根據(jù)優(yōu)化設(shè)計結(jié)果，設(shè)計相應(yīng)的阻尼型隔振器，包括對隔振器結(jié)構(gòu)阻尼材料的選擇、隔振器具體結(jié)構(gòu)形式等工程化設(shè)計工作及尺寸優(yōu)化與布局等。 4）針對V16發(fā)動機(jī)的電控模塊LOP、ECS，采用上述技術(shù)方法開展隔振系統(tǒng)設(shè)計。 5）通過實驗測試，驗證了本文對V16發(fā)動機(jī)電控模塊LOP、ECS所設(shè)計的隔振系統(tǒng)達(dá)到了有關(guān)技術(shù)指標(biāo)的要求。
[Abstract]:Engine is an important thermal power machine, which is widely used in various vehicles, ships and construction machinery. It is the core power of these machinery and equipment. There are gas pressure in the cylinder, unbalanced inertia force and inertia torque caused by unbalanced mass motion such as piston, connecting rod and so on, which can easily stimulate the whole or local strong vibration of the matching vehicle, ship machinery and environmental equipment. It may seriously damage parts, shorten the life of engine and related parts, and pose even more serious threat to some special purpose equipment and sensitive parts. In this paper, based on the LOP,ECS vibration control of a special purpose V16 engine assembly electronic control module, a method of vibration isolation design for this kind of engine and its related modules is studied (for the convenience of describing the design method of general vibration isolation system). The following work flow is as follows: 1) according to the theory of engine kinematics and dynamics, the characteristics of internal vibration excitation force are analyzed. The excitation load of the related parts of the engine is obtained. 2) the optimal design model of engine component vibration isolation system is established, and the proper algorithm is selected to solve the problem. The supporting position, supporting angle and physical parameters of elastic support element are obtained. 3) according to the results of optimization design, the corresponding damping isolators are designed, including the selection of damping materials for the structure of the isolator, the specific structural form of the isolator, and the design work, size optimization and layout of the isolator. 4) the vibration isolation system of V16 engine is designed by using the above technology for the electronic control module (LOP,ECS,) of V16 engine. 5) through experimental test, it is verified that the vibration isolation system designed by LOP,ECS, an electronic control module of V16 engine, meets the requirements of relevant technical specifications.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TK403;TB535.1

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