Name: bicycle torque and moment about an axis
Uploaded: 2023-09-22T11:49:21.000Z
Duration: 1 min 28 s
Channel: JoVE

Bisiklete binen ve tekerleği döndürmek için pedala kuvvet uygulayan bir bisikletçiyi düşünün. Pedala bir kuvvet uygulandığında, bağlı zincir tekerleğin çarklarına bir kuvvet uygular. Tekerlek aksı etrafında döner, böylece dönme ekseni içinden geçer.
Eksen boyunca bir kuvvetin momenti, kuvvetin bir cismin belirli bir nokta veya eksen etrafında ne kadar dönmesine neden olduğunu ölçer.
Bu durumda, tekerlek xz düzleminde y ekseni etrafında döner. Burada, moment kolu veya dönme ekseni ile kuvvetin etki çizgisi arasındaki dik mesafe, çarkların yarıçapıdır.
Yani y ekseni etrafındaki bir kuvvetin momenti Frsinθ'ye eşittir.
Kuvvet teğet olduğundan, kuvvet vektörü ile yarıçap arasındaki açı 90 derecedir.
Bir bisiklette, tekerlek dönüşü tarafından üretilen gücü elde etmek için kuvvet momenti aksın açısal hızı ile çarpılabilir.

<ol>
	<li>Hibbeler, R.C. (2016). Mühendislik Mekaniği \u2012 Statik ve Dinamik. Hoboken, New Jersey: Pearson Prentice Salonu. sayfa 145.</li>
</ol>

bir eksen  Çevresinde bir kuvvetin anı: skaler

Moment of a Force About an Axis: Scalar

Bir eksen çevresinde bir kuvvetin anı, mekanikte bir objenin belirli bir nokta veya eksen etrafında dönme hareketini belirlemeye yardımcı olan kritik bir kavramdır. Kuvvetin anı, skaler analizi kullanarak hesaplanabilir ve bu, dönen ekseni ve kuvvetin etki hattı arasındaki dik uzaklığın veya basitçe moment kolunun göz önünde bulundurulmasını içerir.

Kuvvetin anı kavramını daha iyi anlamak için bir bisiklet sürerken bir bisiklet sürücüsünü düşünün. Bisiklet sürücüsü pedal üzerine kuvvet uyguladığında, bağlı zincir tekerleğin aksına bir kuvvet uygular ve tekerleğin dönmesine neden olur. Burada, dönme ekseni tekerleğin aksından geçer ve moment kolü aksın yarıçapıdır. Bu durumda, dönme ekseni etrafındaki kuvvetin anı aşağıdaki gibi verilir:

<img alt="Equation 1" src="/files/ftp_upload/14258/14258_Equation_1v2.svg" style="text-align: center; height: 13px;" />

burada, F uygulanan kuvvet, r aksın yarıçapı ve θ kuvvet vektörü ile aks arasındaki açıdır. Kuvvet teğetsel olduğundan, kuvvet vektörü ile aks arasındaki açı 90 derecedir.

Bir bisiklette, kuvvetin anı akselere ait açısal hızla çarpılarak tekerlek dönmesi tarafından üretilen güç elde edilebilir. Kuvvetin anı, bisikletler, otomobiller ve uçaklar da dahil olmak üzere çeşitli yapı ve makinelerin tasarlanmasında, stabilite ve güvenliğini sağlamak için esastır.

Bir Eksen  Çevresinde Bir Kuvvetin Anı: Skaler

Bir eksen etrafındaki bir kuvvetin momenti, mekanikte bir nesnenin belirli bir nokta etrafındaki dönme hareketini belirlemeye yardımcı olan çok önemli bir kavramdır veya ...

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

bicycle torque and moment about an axis

The moment of a force about an axis describes how a force can make an object turn around a fixed line. In scalar analysis, the moment is found from the perpendicular distance between the axis of rotation and the line of action of the force. That distance is called the moment arm.

A bicycle gives a clear example of this idea. When the cyclist pushes on the pedal, the chain applies a force to the wheel’s axle and makes it rotate. The axis of rotation passes through the axle, and the moment arm is the axle radius.

For this case, the moment of force about the axis depends on the force, the radius, and the angle between the force vector and the radius. Because the force is tangential, that angle is 90 degrees. The moment of force can also be multiplied by the angular velocity of the axle to find the power produced by the wheel rotation.

This concept is important in the design of bicycles, automobiles, and aircraft. Engineers use it to help maintain stability and safety in these machines and structures.

Bicycle Torque and Moment About an Axis

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moment of a force about an axis: scalar

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key terms and concepts

Learn how the moment of a force about an axis is found with scalar analysis, using a bicycle axle example and its link to rotational power.

Bicycle Torque and Moment About an Axis | 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

Bicycle Torque and Moment About an Axis

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