Asılır tip tarla pülverizatörüne ait püskürtme kolunun gerilme ve yorulma analizi

Abstract

Bu çalışmada literatürde karşılaşılan tarla pülverizatör kollarındaki deformasyon problemleri ele alınmıştır. St 37 ve St 44 malzemelerle tasarlanan pülverizatör kolunun statik gerilme ve yorulma analizi karşılaştırılmıştır. Pülverizatör kolu St 37 ve St 44 yapı çelikleri için tamamen açıktır ve analizlerde düşey yönde y ekseninde ağırlık etkisiyle oluşan ağırlık kuvveti hesaplanmıştır. Analiz sonuçlarına göre St 37 ve St 44 malzemeler için en yüksek asal gerilme değerleri ve toplam yer değiştirme değerleri aynıdır; en yüksek asal gerilme değeri 87.147 MPa ve en yüksek toplam yer değiştirme değeri ise 7.1729 mm'dir. Statik gerilme analizi için emniyet katsayısı St 44 malzemesinde en yüksek değer olup 3.1556 olarak bulunmuştur. En yüksek yorulma ömrü St 44 malzemesinde olup sonuç 2.287x10^6 çevrim olarak bulunmuştur. En yüksek minimum emniyet katsayısı da St 44 malzemesinde olup değeri 2.9273'tür.

Keywords

• Gerilme ve yorulma analizi
• püskürtme kolu
• Çelikler

Stress and Fatigue Analysis of the Spray Boom of a Hanging Type Field Sprayer

Abstract

This study discusses deformation problems in field sprayer arms encountered in the literature. It compares the static stress and fatigue analysis of the sprayer arm designed with St 37 and St 44 materials. The sprayer arm is fully open for St 37 and St 44 structural steels with the weight force in the vertical direction y-axis generated by its weight effect in the analyses. According to the analysis results, the highest principal stress values and total displacement values are the same for St 37 and St 44 materials; the highest principal stress value is 87,147 MPa, and the highest total displacement value is 7,1729 mm. The safety coefficient for static stress analysis was the highest value for St 44 material and was 3,1556. The highest fatigue life belonged to the St 44 material; the result was 2,287×10^6 cycles. The highest minimum safety factor also belongs to St 44 material, and its value is 2,9273.

Keywords

• Spray boom
• Stress and fatigue analysis
• Steels

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