Name: load distribution on shelves and dams
Uploaded: 2023-09-22T11:49:22.000Z
Duration: 1 min 19 s
Channel: JoVE

Dağıtılmış bir yük, bir yüzeye veya bir yapıya yayılmış bir yük türüdür.
Kitaplardan oluşan bir kitaplık düşünün. Kitapların ağırlığı alana eşit olarak dağıtılır.
Yüzeyin farklı konumlarındaki basınç, alana uygulanan yüke karşılık gelir ve metrekare başına Newton veya Pascal cinsinden ölçülür.
Batık yüzeyin dikdörtgen bir plaka olarak modellendiği bir hidroelektrik barajı düşünün.
dx uzunluğundaki küçük bir eleman için; elemana uygulanan kuvvet, wdx tarafından verilen dağıtılmış bir yük olarak ifade edilebilir.
Elemana uygulanan kuvveti entegre ederek, yük eğrisi altındaki toplam alana eşit büyüklükte olan toplam yük belirlenir ve hareket hattı alanın merkezinden geçer.
Bileşke kuvvetin uygulandığı nokta basınç merkezi olarak bilinir.

<ol>
	<li>Hibbeler, R.C. (2016). Mühendislik Mekaniği \u2012 Statik ve Dinamik. Hoboken, New Jersey: Pearson Prentice Salonu. sayfa 190</li>
	<li>Bira, F.P.; Johnston, E.R.; Mazurek, D.F; Cromwell, P.J. ve Öz, B.P.(2019). Mühendisler için Vektör Mekaniği \u2012 Statik ve Dinamik. New York: McGraw-Tepesi. sayfa 262.</li>
</ol>

dağıtılmış yükler

Distributed Loads

Dağıtılmış yükler, mühendislerin ve bilim insanlarının çeşitli uygulamalarda karşılaştığı yaygın bir yük tipidir. Dağıtılmış yükler genellikle bir yüzey veya bir yapı üzerinde yayılmış bir yük türünü ifade eder ve birim alan başına sürekli bir kuvvet olarak modelleme yapılarak temsil edilebilir.

Örneğin, yan yana dikey olarak istiflenmiş kitaplarla dolu bir kitaplık düşünelim. Kitapların ağırlığı raftaki uzunluk boyunca eşit bir şekilde dağılır. Sonuç olarak, rafın yüzeyindeki farklı konumlardaki basınç, uygulanan yüke karşılık gelir ve Newton/metrekare veya Pascal olarak ölçülür.

Başka bir uygulama açısından, hidroelektrik bir barajı düşünelim, bu durumda batık yüzey bir dikdörtgen plaka olarak modelleme yapılır. Plakanın küçük bir elemanı üzerine etki eden kuvvet, uzunluğu "dx" olan dağıtılmış yük olarak ifade edilebilir, burada "w" alan başına düşen kuvvettir. Plakaya uygulanan toplam yük, her bir küçük elemana etki eden kuvvetin entegrasyonuyla belirlenebilir. Plakanın üzerine etki eden sonuç kuvvetinin büyüklüğü, yük eğrisi altındaki alanla orantılıdır ve etki çizgisi alanın merkezi boyunca geçer. Bu nokta, basınç merkezi olarak bilinir. Basınç merkezi, dış kuvvetlere dayanabilen yapılar tasarlamak için önemlidir.

Dağıtılmış yüklerin örnekleri, bir binanın çatısındaki kar yükleri, bir yapıya etki eden rüzgar yükleri veya bir köprünün üzerindeki bir arabanın ağırlığı olabilir. Dağıtılmış yükleri anlamak, dış kuvvetlere dayanabilen güvenli ve sağlam yapıların tasarlanması için önemlidir.

Dağıtılmış Yükler

Dağıtılmış yükler, mühendislerin ve bilim adamlarının çeşitli pratik durumlarda karşılaştıkları yaygın bir yük türüdür. Dağıtılmış yükler genellikle bir ...

Education

JoVE Core

Mechanical Engineering

Makine Mühendisliği

Unit 1

Ünite 1

Force System Resultants

Kuvvet Sistemleri Bileşkesi

KEY TERMS AND CONCEPTS

TEMEL TERİMLER VE KAVRAMLAR

load distribution on shelves and dams

Load distribution helps engineers describe how force spreads across a surface or structure. A distributed load is a continuous force per unit area, rather than a single point force. It is a common idea in many practical situations.

A bookshelf full of stacked books is one simple example. The weight of the books is spread along the shelf, so the pressure changes across the surface. This pressure is measured in Newtons per square meter, or Pascals.

A hydroelectric dam gives another clear example. The submerged surface can be modeled as a rectangular plate. The force on a small piece of that plate, with length dx, is written as wdx, where w is the force per unit area.

The total load on the plate is found by integrating the force from each small element. The size of the resultant force is related to the area under the load curve. Its line of action passes through the centroid of that area. This point is called the center of pressure, and it is important for designing structures that can resist external forces.

Distributed loads also appear in many other situations. Snow on a roof, wind on a structure, and the weight of a car on a bridge are all examples. Understanding these loads helps engineers build safe and robust structures.

Load Distribution on Shelves and Dams

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Torque on a Bicycle Wheel: Vector Method

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couple

Couple Moment in Force Systems

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Couple Moments and the Right-Hand Rule

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equivalent couples

Equivalent Couples in Mechanical Systems

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Torque from a Couple: Solving Forces

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system of forces and couples

Equivalent Force and Moment Systems

Structural systems often experience several forces and couple moments at the same time. Engineers simplify these loading cases by replacing them with an equivalent force and moment system at a chosen point O. This makes the analysis easier while keeping the same external effects on the member. A key idea in this process is the principle of transmissibility. A force is a sliding vector, which means it can be moved anywhere along its line of action without changing how the body behaves...

simplification of a force and couple system i

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Resultant Forces in Force and Couple Systems

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Resultant Force and Wrench Motion

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distributed loads

Load distribution helps engineers describe how force spreads across a surface or structure. A distributed load is a continuous force per unit area, rather than a single point force. It is a common idea in many practical situations. A bookshelf full of stacked books is one simple example. The weight of the books is spread along the shelf, so the pressure changes across the surface. This pressure is measured in Newtons per square meter, or Pascals. A hydroelectric dam gives another clear...

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key terms and concepts

Learn how distributed loads spread force across shelves, dams, roofs, and bridges, and how engineers use integration and the center of pressure to design safe structures.

Load Distribution on Shelves and Dams | JoVE K12

JoVE Core Makine Mühendisliği, denge, kuvvetler, kafes kiriş analizi ve yapısal mekanik gibi temel konuları kapsayan kısa, anlaşılması kolay animasyonlu videolar sunar. Gerçek dünyadaki uygulamalarını keşfedin ve bilim insanlarının önderlik ettiği deneylerle bu kavramların uygulanmasına tanık olun.

mechanical engineering

Load Distribution on Shelves and Dams

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