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  本文選題：履帶式車輛 + 輪式結(jié)構(gòu)��； 參考：《太原科技大學(xué)》2013年碩士論文

【摘要】：本課題針對履帶式工程車輛振動劇烈、噪聲大等特點，利用傳統(tǒng)橡膠隔振器與鋼絲網(wǎng)隔振器的優(yōu)點，制成橡膠鋼絲網(wǎng)組合式隔振墊，并將其應(yīng)用于推土機的支重輪上。 為保證橡膠鋼絲網(wǎng)支重輪與履帶板的良好嚙合，根據(jù)推土機的工作環(huán)境、橡膠鋼絲網(wǎng)的材料特性以及支重輪的受力情況，設(shè)計了橡膠鋼絲網(wǎng)式支重輪的結(jié)構(gòu)尺寸。 分析了粘彈性材料及鋼絲網(wǎng)結(jié)構(gòu)的特點、耗能原理和相關(guān)參數(shù)，為橡膠鋼絲網(wǎng)式支重輪的減振緩沖提供理論依據(jù)。 以某廠家某機型為例，建立了整機以及單個支重輪的振動阻尼模型。推導(dǎo)了支重輪的幅頻響應(yīng)函數(shù)，為整機的減振分析提供幫助。 因為該支重輪是一種新型的結(jié)構(gòu)，并沒有在實踐中運用。所以有必要驗證其力學(xué)性能，利用有限元軟件對該結(jié)構(gòu)支重輪在三種不同載荷作用下的強度分析，結(jié)果表明：該結(jié)構(gòu)支重輪在不同載荷作用下均可滿足強度要求。 為檢驗該支重輪的減振緩沖效果，將該結(jié)構(gòu)支重輪與傳統(tǒng)剛性支重輪在平地作業(yè)、一定坡度作業(yè)、單支重輪支撐作業(yè)等工況下進(jìn)行緩沖比較，分析得到，橡膠鋼絲網(wǎng)式支重輪其緩沖減振效果均優(yōu)于傳統(tǒng)的剛性支重輪，尤其是在車輛的固有頻率附近，，橡膠鋼絲網(wǎng)式支重輪的緩沖效果更加明顯。
[Abstract]:In view of the characteristics of high vibration and noise of tracked engineering vehicle, this paper makes use of the advantages of traditional rubber isolator and steel wire isolator to make rubber wire mesh combined vibration isolation pad, and applies it to the supporting wheel of bulldozer. In order to ensure the good meshing between the rubber wire mesh supporting heavy wheel and the crawler plate, according to the working environment of the bulldozer, the material characteristics of the rubber wire mesh and the force condition of the supporting wheel, the structure and size of the rubber wire mesh supporting wheel are designed. The characteristics of viscoelastic material and steel wire mesh structure, the principle of energy dissipation and related parameters are analyzed, which provides a theoretical basis for the damping and buffering of rubber wire mesh retaining wheel. The vibration damping model of the whole machine and the single bearing wheel is established by taking a certain type of machine in a factory as an example. The amplitude-frequency response function of the supporting wheel is derived, which is helpful for the vibration reduction analysis of the whole machine. Because the wheel is a new type of structure, and has not been used in practice. Therefore, it is necessary to verify its mechanical properties. The strength analysis of the supporting wheel under three different loads is carried out by using the finite element software. The results show that the strength requirements of the supported wheel can be satisfied under different loads. In order to test the damping and buffer effect of the bearing wheel, this paper compares the structure bearing wheel with that of the traditional rigid support wheel under the conditions of flat ground operation, certain slope operation, single bearing wheel supporting operation and so on. The cushioning effect of rubber wire mesh retaining wheel is better than that of traditional rigid supporting wheel, especially near the natural frequency of vehicle, and the cushioning effect of rubber wire mesh supporting wheel is more obvious.
【學(xué)位授予單位】：太原科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TB535.1

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