TTNEWS
  • entertainment
  • Sport
  • Finance
  • tec
  • Travel
  • military
  • Parenting
  • fashion
  • game
  • history
  1. home

The "difference" of the rotor and propeller

2024-11-11 17:01:47

The propeller is a rotary propeller that can generate thrust through turbine propeller engines.Or tension.Unlike the propellers on the fixed wing aircraft, only the thrust or tension is generated. Some small drones and helicopters use rotation mainly to generate lift.What are the differences in the fields of propellers and rotor?

(Picture source "Knowledge is Power" magazine)

The size of the paddle leaves is very different.

The propeller and rotor are important power components on the aircraft. The propeller is mainly used for large drones and the large drone andSome fixed -wing aircraft, rotations are mostly used for helicopters and small drones.In appearance and size, the propeller and the rotor are significantly different.Due to the fast flight speed of the fixed wing aircraft, the rotation speed at the tip of the propeller is very high, and the larger the leaf size of the propeller, the higher the rotation speed, which makes the speed at the tip of the paddle easily break through the sound speed.Once the speed of the rotation speed at the paddle tip, the rotation resistance of the propeller will greatly increase and produce strong noise.Therefore, the size of the propellers of the fixed -wing aircraft often does not do too long.Unlike the propeller, the rotor is relatively long in order to improve the lift.

Rotor helicopter (the source of "Knowledge is Power" magazine)

fixed wing aircraftThe propeller cannot be done too long, and its diameter (refers to the diameter of the round diameter formed by the rotation of the paddle, and the diameter of the paddle is exactly the distance between the two paddle tips).The rotor size is much larger.The diameter of the light helicopter has a diameter of several meters, the medium helicopter can reach more than ten meters, and the larger helicopter rotor diameter is even more than 30 meters.In addition to the differences in size, due to different working principles and application scenarios, the shape of the propeller and the rotor also has a large difference.The blades of the propeller are usually shorter and the leaves are wide. The helicopter rotor is more complicated than the propeller, and the width of the leaves is limited. Therefore, the lift can only be increased by increasing the length. The leaves are long.

Fixed winged propeller aircraft (the source of "knowledge is the power" magazine)

Differences on the wing type

When the propeller rotates, the blade can obtain the reaction force by pushing the air, which can output the engine output of the engine output.Converted into the thrust or tension of the aircraft.The cross section of the helicopter rotor is similar to the wing section of the fixed -wing aircraft. When the rotation, the upper and lower sides of the wing surface will generate the pressure difference between the upper and lower sides of the wings, providing a lift for the helicopter.

The propeller blades of fixed-wing aircraft have high hardness, mainly overcoming the forward resistance (the source of the "knowledge is the power" magazine)

As a component of the thrust or tension of the aircraft, the cross section of the general propeller uses a wing -like wing type.In the process of rotation of paddle leaves, according to Berunleys theorem, the air flow rate in front of the paddle leaves is large, and the pressure is smaller than the rear of the paddle. The pressure difference can be provided to the aircraft.Since the birth of the aircraft, the wing type of the wing has continued to replace, and the wing type that can be suitable for propellers has also increased.

Generally speaking, most of the fixed -wing aircraft propellers will not use the same low -speed wing type from the paddle to the paddle to the paddle roots, but at the speedThe higher position of the high paddle tip is selected from a thin high -speed wing type, and a thicker low -speed wing type is adopted at the roots of the paddle to reduce the burden on the engine and increase the speed.If the paddle roots are consistent with the wing type at the paddle tip, it is likely to increase the resistance when the propeller rotates and reduce the speed.

The rotor blades of the helicopter are slender and flexible structure, which mainly overcome the pressure difference

(Picture source "Knowledge is Power" magazine)

Why cant the rotor rotor of the helicopter be called a propeller

P ID = "35KSCK3F"> Port aircraft to drive the propeller through the engine to drive the propeller, and the propeller rotation is used to generate thrust to promote the aircraft movement.The helicopter mainly lifts off through the lift generated by the rotor, and adjusts the propeller distance of the tail propeller to resist the reaction force generated by different speed generated by the rotor, thereby pushing the body to move towards different directions in different directions.One is used to generate thrust, one is used to generate upward lift, and the working principle is completely different, so the rotor of the helicopter cannot be called a propeller.

The propeller leaves of fixed-wing aircraft are not flat, and have a certain to reversing angle (the source of "knowledge is the power" magazine)

What is the number of paddles of the propeller?

The propeller usually installed on the head of the aircraft is a pull -type propeller, and the propeller installed on the rear of the aircraft is a thrust -type propeller.In addition, some fixed -wing aircraft are installed.If you want to increase the thrust or tension of the propeller, it is one of the methods to increase the number of paddles on the propeller.The number of paddles on a propeller on a aircraft is based on the power of the engine. Small aircraft usually use the propeller of two blades; large aircraft use multiple engines, each equipped with more than 3 clams of the blades.

Small planes often use two blades to propelle (the source of the "knowledge is the power" magazine)

Although the propeller and rotor are both rotating power sources, due to the complex loading situation such as twisting, variable distance, waving, and vibration, the rotor is more difficult than the propeller.

Writing | Yi Man

Responsible editor | Li Yinhui Zhang Lihan

Operation Editor | Zhang Lihan

Quality Audit | Industry Lei

❖ Source: "Knowledge is Power" magazine

""Similar Simulture" of the Rotor and Prophopper

Order 2024

Price of 360 yuan

Popular information
  • As soon as the water and fire are intertwined, all diseases disappear!One piece of recipe traffic heart and kidney, tinnitus, insomnia completely disappear | 2024-11-14 09:16:09
  • Eat "bergamot" carcinogen?Can the bergamot melon be eaten?How to eat?The answer is clear | 2024-11-14 09:20:23
  • "Medicine Innovation" is here. What should the medical community do? | 2024-11-14 09:21:15
  • Good news!The effect of reducing the triglyceride is clear, and the clinical trial of domestic fish oil was officially released in the "Cell" subsidiary | 2024-11-14 09:21:49
  • Whose body is healthier than those who have long boiled water for a long time than those who drink tea for a long time?Tell you the truth | 2024-11-14 09:23:12
  • Do not panic when diagnosed diabetes!Do these things scientifically and regain your confidence in happy life | 2024-11-14 09:27:25
  • GM soybean oil is harmful and carcinogen?Academician of Engineering: More than 80%of Chinese people have eaten genetically modified food | 2024-11-14 09:27:30
  • You Mishafen coughs, what is the dosage of medication? | 2024-11-14 09:27:34
  • COFCO Coca -Cola players won the best achievements in the 4th professional skills competition in Wangcheng Economic Development Zone, Hunan Province | 2024-11-14 09:27:38
  • Practice a healthy lifestyle and improve the happiness of patients with diabetes!This free consultation is very warm and intimate | 2024-11-14 09:41:33
  • HER2 Lung Cancer Precision Forum, start with you on November 16 to open an international vision of precision diagnosis and treatment | 2024-11-14 09:42:42
  • Promote the "Pirented Warrior" of the Space Station | 2024-11-14 09:42:47
  • Adult myocarditis, which two medicines are recommended for nutritional myocardium? | 2024-11-14 09:42:53
  • Starting from the pathological mechanism, explore the new ideas of diabetes and kidney disease management | 2024-11-14 09:42:56
  • There are cancer in the body, neck prophet?If there are 3 abnormalities in the neck, it may be cancer or disease warning | 2024-11-14 09:49:13
  • [World Premature Parement Day Topic] 21 Weekly Superpost Miracle Miracle | 2024-11-14 09:49:19
  • This symptoms have cancer, and vigilance is the "early signal" of metastasis and recurrence! | 2024-11-14 09:49:27
  • Xixi | Beijing Century Hospital Pharmacy Pharmaceutical Popular Science Micro Video was received by the National Nature Fund Commission and was broadcast on the National Nature Platform | 2024-11-14 09:49:30
  • How to use Yipu Maibu?Remember 3 indications and 4 precautions! | 2024-11-14 09:49:33
  • A Chinese patent medicine with a strong heart | 2024-11-14 09:58:02
  • Is it true that one is poor?The Chinese Academy of Sciences cracks "Dou" and "Dust Pork" genetic mysteries | 2024-11-14 10:03:40
  • The 57 -year -old uncle was yellow and his hands were swollen. He had this rare blood disease! | 2024-11-14 10:09:14
  • The gout is combined with cerebral infarction. Where is this prescription wrong? | 2024-11-14 10:09:55
  • Talk about the clinical significance of the "Five Gong Five items" indicator | 2024-11-14 10:09:59
  • In encountering "special facial facial paralysis", these three medicines must be used! | 2024-11-14 10:10:17
  • It is a "anti -cancer helper", cooking every week! | 2024-11-14 10:10:22
  • How long can people know the back of the hand?People with long life have these four performances on the back of their hands! | 2024-11-14 10:10:26
  • Children tilted their heads to see things because of bad habits?It may be the scourge of strabismus!Treatment as soon as possible | 2024-11-14 10:10:32
  • Virus infection increases in many places | Prevention is the focus | 2024-11-14 10:11:01
  • What should I do if the nipples are "hidden"? | 2024-11-14 10:11:37
Latest
Happy Bao | Dream of Dream Medicine Bloom -Graduate Students from our hospital won the second prize of the Capital Medical University 2024 Speech Contest Personal evaluation of the 30 -year history of the best lineup of Ma Lai can barely enter the bench The domestic "three major airlines" C919 aircraft gathered in Chengdu!Practicing flying and going north Shangguang Parents do this to break the "only performance theory", and each child can bloom unique light She, sent a letterless letter to the moon Old cup bonus super lpl champion!Attract the old We Korean aid: I want to support the championship, I want to raise children In 2025, the statutory holidays have been added for 2 days. What is the true attitude of tourism practitioners? What does the PPT look like by Lin updated?After reading it, I was cried by ugliness Beiqing: After the National Football Team Barin will return to Xiamen for the afternoon of the 15th, the 15th day of the 15th National Football Team VS Balling 23 people List exposure: Xie Wen can suspend the race!Fourth goalkeeper+flying wing failure selection The best element of the Super League announced, Wei Shihao missed, 4 people in Shanghai, Luneng 2, Wu Xi was surprised Ding Yongxun fell in love with Zhao Xuehua at first sight and loved each other for 37 years. Now the 36 -year -old son makes him worry Ye Ke has not seen Huang Xiaoming in the checkup. Paparas have been exposed to 5 months of pregnancy. The 24 -year -old Fan Ye compared the 28 -year -old Shi Yunpeng. Aspen: Mbappe has been silent after joining Real Madrid for 4 months. Only 2 interviews have been accepted in 4 months Chen Meng withdrew!Instead, Sun Yingsha was forced to have both and gave birth to 2 questions. What did Ma Lin think? It is the lowest -key county in Shanxi, with world -class famous mountains, but few people know the county name! Ye Ke promised to return the net to cancel the account again as a demon again!Huang Xiaoming is lazy, Ye Ke is alone for pregnancy! Big!Blast Yang Zi accompanied by sleeping: evidence has been obtained, involved in many popular actresses, more synthetic streams out "The Lane Family" Zhuang rushed to drive away his parents and forced Pengfei to buy a house. Only then did you know that Zhuang Chaoying was very lucky Wang Xiaofei hit Big S: A wedding with Ma Xiaomei will be re -wedd, Ma Xiaomei threw out propositions Who is the most runner -up in the World Cup?The Dutch Three Entry Finals are defeated, Argentina is tied, and the other team is the most The Clippers regretted, Harden 19+6+7, after the game, Harden walked towards the Rockets bench, hugged Ethan to pay attention to Rockets 111-103 Clippers!Player scores are released: 4 people are full, 3 people pass, 2 people pull their hips! No accident, this will become the main framework of Amurin Manchester United! Choose a rational student in kindergarten?Can "Run Run" Education really win on the starting line? British PS5 Pro price or permanent drop: the largest retail sales leading price reduction The 19 -day box office broke through 3.3 billion and won the global championship. The strongest movie this year was born. Daolang: The Macau concert is well received, and I won the two former CCTV host of Zhao Pu Li Xiaomeng. 2024 Inner Entertainment is to be exploded, only one year, the gap is obvious Lei Jun is jealous. Xiaomi SU7 has 100,000 offline and 100,000 orders. Guangzhou house tickets can buy new houses in the city!Expert: It is necessary to make the demolished households realized that in the past It is said that the Chery FR Division was established, and the headquarters is located in Shanghai Win 20 points!Du Feng won the first victory, and the new aid 23 points hit a new high. The chef should describe the job from the teachers and students and parents, and the supplier will not run away. Thirty points defeated, the CBA Journey really walked over?The three major foreign aids in Zhejiang broke out, and genius teenagers burst and burst The transformation of Jinji Co., Ltd. suffered a decline of 922 million large orders to terminate the operating pressure of 8.82 million yuan in the first three quarters. 4 games 0 goals!The number of shooters is lost, Alda is deeply trapped in the mud, and the situation of winning the championship deteriorates Crown: 0 to 4!The fatigue is shown. In the first round, Trump took Ding Junhui lightly Korean dramas have evolved to the male lead, no male lead is required The performance benchmark covers the global stock market and gold, and the world is actively configured with FOF to open the closed period CITIC Securities A shares increased by 60% of Yuexiu Capital to reduce holdings by 1% or cash out 5 billion yuan Academician Qian Qihu: The domestic shield is going to the world. I hope that the younger generation of "Chinese tunnelers" will create further glory The whole Chinese class rushes for another year!BLG is highly likely to renew the contract, ELK renewal conditions are only one The husband takes the child to buy milk powder to bring it back to the PS5 Pro, his wife asked the Internet online, and the merchant sent God to assist The most surprising seven players?Downs first!Hilde, three goals on the list! Shenzhen Chuanyin Communications under Chuanyin was awarded the title of new "Little Giant" enterprise in the national specialized specialty The stock price of the market fell by 6.43%in the afternoon of US $ 13.37 in the US real estate investment Sure enough!6 major foreign aid blessings, old acquaintances return, Zhou Peng will lead the Shenzhen team to take off The Egyptian Museum opened the night exhibition tourists with close contact with Pharaoh

©2024 ttnews All rights reserved

Privacy Policy | Service Terms | contact us