發(fā)布時(shí)間：2018-03-17 21:25

  本文選題：液壓支架四連桿　切入點(diǎn)：粒子群算法　出處：《工程設(shè)計(jì)學(xué)報(bào)》2017年04期 　論文類型：期刊論文

【摘要】：針對(duì)煤礦液壓支架四連桿受力計(jì)算較為復(fù)雜,簡(jiǎn)化計(jì)算時(shí)易出現(xiàn)較大誤差且穩(wěn)定性較差的問(wèn)題,提出從四連桿機(jī)構(gòu)的空間受力出發(fā)并結(jié)合支架的運(yùn)動(dòng)軌跡,采用粒子群優(yōu)化算法對(duì)四連桿機(jī)構(gòu)展開(kāi)優(yōu)化研究。首先建立了四連桿優(yōu)化模型,在優(yōu)化模型中選取對(duì)結(jié)果影響較大的參數(shù)作為優(yōu)化變量,以軌跡偏差、連桿長(zhǎng)、連桿力之和作為目標(biāo)函數(shù),根據(jù)液壓支架設(shè)計(jì)規(guī)范確定約束條件。然后使用粒子群算法對(duì)目標(biāo)函數(shù)進(jìn)行迭代求解并在求解過(guò)程中采用懲罰函數(shù)法解決優(yōu)化模型中不等式約束問(wèn)題。對(duì)比優(yōu)化前后連桿的桿長(zhǎng)、受力和穩(wěn)定性數(shù)據(jù),發(fā)現(xiàn)優(yōu)化后的四連桿實(shí)現(xiàn)了輕量化,且受力較小,穩(wěn)定性提高。研究結(jié)果對(duì)四連桿的設(shè)計(jì)有實(shí)際參考價(jià)值。
[Abstract]:In view of the complicated calculation of the four-link force of the hydraulic support in coal mine and the problem of large error and poor stability when simplifying the calculation, this paper puts forward the point of view of the space force of the four-link mechanism and the movement track of the support. Particle swarm optimization (PSO) algorithm is used to optimize the four-bar linkage mechanism. Firstly, a four-bar optimization model is established. In the optimization model, the parameters that have a great influence on the results are selected as the optimization variables, and the trajectory deviation and the length of the linkage are taken as the optimization variables. The sum of connecting rod forces acts as an objective function, According to the design specification of hydraulic support, the constraint conditions are determined. Then the objective function is iterated by particle swarm optimization algorithm and the penalty function method is used to solve the inequality constraint problem in the optimization model. The bar length of the front and rear connecting rod, According to the data of force and stability, it is found that the optimized four-bar is lightweight, and the force is small and the stability is improved. The results of the study have practical reference value for the design of four-bar.
【作者單位】： 南京工業(yè)大學(xué)機(jī)械與動(dòng)力工程學(xué)院;東華大學(xué)機(jī)械工程學(xué)院;
【基金】：“十二五”國(guó)家科技支撐計(jì)劃項(xiàng)目(2013BAF02B11)
【分類號(hào)】：TD355.4

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