Почему Поезда не Поднимаются В Горы
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Why can't trains climb mountains on standard tracks, and how have the laws of physics created the main technical pitfall for rail transport? In this article, we'll reveal the secrets of engineering solutions and learn how trains climb hills. You'll see a fascinating study that examines the physics of friction, how locomotives operate on grades, and why heavy trains slip on steep inclines.
Most people believe that a powerful engine is enough to overcome a steep incline. However, in reality, even the most powerful locomotive with thousands of horsepower will stall helplessly on a slight incline. The reason lies in the microscopic contact patch between the steel wheel and the rail. The contact patch is no larger than a five-ruble coin, and the coefficient of friction between steel and steel is only 0.15. As soon as the track deviates from the horizontal, gravity begins to pull the multi-ton train backward, and the wheels begin to slip endlessly.
This problem has led to many dramatic events in the history of railways. Legendary engineers like George Stephenson and Isambard Kingdom Brunel sought ways to overcome the physical limit of adhesion. You'll learn how the first rack railways were built, why locomotives were injected with quartz sand, and why the Abt and Locher systems were first used on steep slopes. We'll explore the operation of funiculars, articulated locomotives like the Mallett system, and how modern distributed traction helps overcome the extreme altitudes of the Qinghai-Tibet Railway.
Special attention will be paid to downhill driving. You'll see why braking a train on a descent becomes a true challenge, how brake shoes glow white-hot, and how electrodynamic regenerative brakes work. We'll show how the evolution of transportation led to the creation of magnetic levitation trains and Hyperloop vacuum lines.
This documentary will be of interest to anyone interested in the history of science, mechanical engineering, physics, and complex technology. We've collected unique historical facts, engineering accidents, and analyses of physical laws. High-quality documentaries about technology help us understand how the human mind overcomes nature's most complex challenges."
20 Comments
engenharia e criatividade! Show!👍🇧🇷RJ
Man kann Seilzug-Bahnen in Bad Wildbad 🇩🇪 oder in Stuttgart 🇩🇪 fahren.
Die Pilatus-Bahn in der 🇨🇭 ist natürlich ein absolutes Highlight für Bahn Fans.
Aufstieg über Bergkurven erlebt man am besten mit dem „Bernina Express“ in der Schweiz 🇨🇭, zwischen Bergün und Airolo.
Почему Поезда не Поднимаются В Горы
Фабрика документальных фильмов
802,004 views
Why can't trains climb mountains on standard tracks, and how have the laws of physics created the main technical pitfall for rail transport? In this article, we'll reveal the secrets of engineering solutions and learn how trains climb hills. You'll see a fascinating study that examines the physics of friction, how locomotives operate on grades, and why heavy trains slip on steep inclines.
Most people believe that a powerful engine is enough to overcome a steep incline. However, in reality, even the most powerful locomotive with thousands of horsepower will stall helplessly on a slight incline. The reason lies in the microscopic contact patch between the steel wheel and the rail. The contact patch is no larger than a five-ruble coin, and the coefficient of friction between steel and steel is only 0.15. As soon as the track deviates from the horizontal, gravity begins to pull the multi-ton train backward, and the wheels begin to slip endlessly.
This problem has led to many dramatic events in the history of railways. Legendary engineers like George Stephenson and Isambard Kingdom Brunel sought ways to overcome the physical limit of adhesion. You'll learn how the first rack railways were built, why locomotives were injected with quartz sand, and why the Abt and Locher systems were first used on steep slopes. We'll explore the operation of funiculars, articulated locomotives like the Mallett system, and how modern distributed traction helps overcome the extreme altitudes of the Qinghai-Tibet Railway.
Special attention will be paid to downhill driving. You'll see why braking a train on a descent becomes a true challenge, how brake shoes glow white-hot, and how electrodynamic regenerative brakes work. We'll show how the evolution of transportation led to the creation of magnetic levitation trains and Hyperloop vacuum lines.
This documentary will be of interest to anyone interested in the history of science, mechanical engineering, physics, and complex technology. We've collected unique historical facts, engineering accidents, and analyses of physical laws. High-quality documentaries about technology help us understand how the human mind overcomes nature's most complex challenges."
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