本文關(guān)鍵詞： 生物質(zhì)燃料 優(yōu)化設(shè)計 粒子群算法 有限元分析　出處：《山東理工大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

【摘要】：生物質(zhì)經(jīng)壓縮作為燃料是具有廣闊應(yīng)用前景的綠色能源。傳統(tǒng)生物質(zhì)壓縮機多采用液壓式成型技術(shù),價格較昂貴,并且容易造成泄漏,污染環(huán)境,因此不能滿足市場小型化、批量化、低成本的需求。而機械連桿式壓縮機具有體積小,結(jié)構(gòu)簡單,維護方便等優(yōu)點,能夠適應(yīng)小型化、可移動性等市場要求。 本文結(jié)合多輸入單輸出技術(shù),提出一種新型連桿式生物質(zhì)燃料壓縮機,從構(gòu)型設(shè)計、運動學(xué)分析、靜力學(xué)分析、運動仿真分析及有限元分析等方面,對壓縮機進行研究。具體研究內(nèi)容和創(chuàng)新成果如下： 1)提出一種新型連桿式生物質(zhì)燃料壓縮機結(jié)構(gòu)。在分析生物質(zhì)成型特性基礎(chǔ)上,提出生物質(zhì)燃料壓縮機設(shè)計目標；通過對兩種新型多輸入單輸出方案的分析比較,確定以電動推桿做動力源、對稱連桿做增力機構(gòu)的新型壓縮機方案；對對稱連桿機構(gòu)進行運動學(xué)與靜力學(xué)分析,得到機構(gòu)的輸入與輸出關(guān)系表達式,并用MATLAB軟件分析各參數(shù)對機構(gòu)性能影響,為機構(gòu)參數(shù)優(yōu)化提供依據(jù)。 2)引入新型粒子群優(yōu)化算法對生物質(zhì)燃料壓縮機進行參數(shù)優(yōu)化設(shè)計。通過建立機構(gòu)的增力比及桿件動載荷系數(shù)模型,以沖壓過程中機械增益盡可能大、各桿承受載荷盡可能小為目標,選擇操作簡單、優(yōu)化速度快的粒子群算法作為本課題的優(yōu)化算法。利用MATLAB軟件編寫控制算法自動運行程序,對機構(gòu)進行最優(yōu)化設(shè)計,確定合理的機構(gòu)參數(shù),并驗證優(yōu)化結(jié)果,為機構(gòu)參數(shù)優(yōu)化提供一種新的思路。 3)完成生物質(zhì)燃料壓縮機性能分析。通過ADMAS軟件,對機構(gòu)進行運動學(xué)仿真,分析生物質(zhì)壓縮機的運動特性；為提高整機強度及穩(wěn)定性,利用ANSYS軟件,對連桿、機架及其他重要零件進行有限元靜態(tài)分析,根據(jù)機架及零件的強度條件,提出修改方案,確定各構(gòu)件外形結(jié)構(gòu)。最終通過理論分析與ADMAS仿真確定生物質(zhì)燃料壓縮機的技術(shù)參數(shù)。 仿真結(jié)果表明,與現(xiàn)有生物質(zhì)燃料壓縮機相比,新型連桿式生物質(zhì)燃料壓縮機具有節(jié)能環(huán)保、輕便可靠的優(yōu)點,是一項值得推廣的技術(shù)。
[Abstract]:Biomass compression as fuel is a green energy with broad application prospects. Traditional biomass compressors use hydraulic molding technology, which is expensive and easy to leak and pollute the environment, so it can not meet the market miniaturization. The mechanical connecting rod compressor has the advantages of small volume, simple structure and convenient maintenance, which can meet the market requirements of miniaturization and mobility. In this paper, a new type of connecting rod biomass fuel compressor is proposed, which includes configuration design, kinematics analysis, statics analysis, motion simulation analysis and finite element analysis. Research on compressor. Specific research contents and innovative results are as follows:. 1) A new type of connecting rod biomass fuel compressor structure is proposed. Based on the analysis of biomass briquetting characteristics, the design goal of biomass fuel compressor is put forward, and two new multi-input single-output schemes are analyzed and compared. A new compressor scheme with electric push rod as power source and symmetrical connecting rod as force booster mechanism is determined, and the kinematics and statics analysis of symmetrical linkage mechanism is carried out, and the expression of input and output relationship of the mechanism is obtained. The influence of each parameter on the mechanism performance is analyzed by MATLAB software, which provides the basis for the optimization of the mechanism parameters. 2) introducing new particle swarm optimization (PSO) algorithm to optimize the parameters of biomass fuel compressor. By establishing the force ratio of the mechanism and the dynamic load coefficient model of the rod, the mechanical gain is as large as possible during the stamping process. The aim of each pole is to keep the load as small as possible, and the particle swarm optimization algorithm, which is simple in operation and fast in optimization, is chosen as the optimization algorithm in this paper. The automatic running program of the control algorithm is written by MATLAB software, and the optimal design of the mechanism is carried out. The reasonable mechanism parameters are determined and the optimization results are verified, which provides a new way of thinking for the mechanism parameter optimization. 3) complete the performance analysis of biomass compressor. Through the ADMAS software, the kinematics simulation of the mechanism is carried out, and the kinematic characteristics of the biomass compressor are analyzed. In order to improve the strength and stability of the whole machine, the connecting rod is analyzed by using the ANSYS software. The finite element static analysis of frame and other important parts is carried out. According to the strength conditions of the frame and parts, the modification scheme is put forward to determine the shape and structure of each component. Finally, the technical parameters of biomass fuel compressor are determined by theoretical analysis and ADMAS simulation. The simulation results show that, compared with the existing biomass fuel compressor, the new connecting rod biomass fuel compressor has the advantages of energy saving, environmental protection, portability and reliability, and is a technology worth popularizing.
【學(xué)位授予單位】：山東理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH112

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