sonic barrier

简明释义

声障

英英释义

例句

1.The fighter jet broke the sonic barrier, creating a loud boom.

战斗机突破了音障，发出了巨大的轰鸣声。

2.Breaking the sonic barrier can lead to significant advancements in aviation.

突破音障可以带来航空领域的重大进展。

3.The sonic barrier is often a challenge for aircraft designers.

音障通常是飞机设计师面临的挑战。

4.When the rocket launched, it quickly reached the sonic barrier and surpassed it.

火箭发射时，很快达到了音障并超越了它。

5.Scientists are studying how to safely cross the sonic barrier with new technologies.

科学家们正在研究如何利用新技术安全地跨越音障。

作文

The concept of the sonic barrier has fascinated scientists and aviation enthusiasts for decades. The term refers to the point at which an aircraft or any object traveling through the air reaches the speed of sound, which is approximately 343 meters per second (1,125 feet per second) at sea level. Crossing the sonic barrier is not merely a matter of speed; it involves complex aerodynamic challenges that can significantly affect an aircraft's performance. Historically, the sonic barrier was perceived as an insurmountable obstacle. Early pilots and engineers believed that reaching this speed would lead to catastrophic failures due to shock waves that form as an object approaches the speed of sound. These shock waves create a sudden change in pressure, which can destabilize an aircraft. However, advancements in technology and materials have allowed modern aircraft to overcome these challenges. The first successful breach of the sonic barrier occurred on October 14, 1947, when U.S. Air Force Captain Chuck Yeager flew the Bell X-1 and became the first person to travel faster than the speed of sound. This monumental achievement opened up new possibilities for aviation and paved the way for supersonic flight. Since then, various military and civilian aircraft have been designed to operate at supersonic speeds. Fighter jets like the F-22 Raptor and commercial airliners such as the Concorde have demonstrated the potential of flying beyond the sonic barrier. However, the use of supersonic technology has often been controversial due to the sonic booms produced when an aircraft exceeds the speed of sound. These booms can cause disturbances on the ground, leading to regulations that limit where and when supersonic flights can occur. The implications of crossing the sonic barrier extend beyond just aviation. The principles involved in overcoming this barrier are applicable in various fields, including automotive engineering and space exploration. For instance, understanding how vehicles can efficiently navigate through different layers of the atmosphere is crucial for the success of spacecraft re-entering Earth’s atmosphere. In recent years, there has been renewed interest in developing supersonic passenger jets that minimize the impact of sonic booms. Companies are researching innovative designs and technologies that can allow for quieter supersonic travel. This could revolutionize long-distance travel, drastically reducing flight times and making global travel more accessible. In conclusion, the sonic barrier represents a significant milestone in the field of aerodynamics and aviation. It symbolizes human ingenuity and the relentless pursuit of progress. As technology continues to evolve, the dream of efficient and environmentally friendly supersonic travel may soon become a reality, allowing us to traverse the skies faster than ever before. The journey beyond the sonic barrier not only showcases our capabilities but also inspires future generations to push the limits of what is possible.

“声障”这一概念吸引了科学家和航空爱好者数十年。这个术语指的是飞机或任何穿越空气的物体达到音速的点，音速大约为每秒343米（每秒1125英尺），在海平面上。跨越“声障”不仅仅是速度问题；它涉及复杂的空气动力学挑战，这些挑战会显著影响飞机的性能。历史上，“声障”被认为是一个不可逾越的障碍。早期的飞行员和工程师相信，达到这个速度将导致灾难性的故障，因为在物体接近音速时会形成冲击波。这些冲击波会造成压力的突然变化，从而使飞机不稳定。然而，技术和材料的进步使现代飞机能够克服这些挑战。第一次成功突破“声障”的事件发生在1947年10月14日，当时美国空军的查克·耶格尔上尉驾驶贝尔X-1飞行器，成为第一个超过音速的人。这一具有里程碑意义的成就开启了航空的新可能性，并为超音速飞行铺平了道路。此后，各种军用和民用飞机被设计成能够以超音速飞行。战斗机如F-22猛禽和商业客机如协和号都展示了超越“声障”的潜力。然而，由于超音速飞行产生的音爆，这种超音速技术的使用往往颇具争议。这些音爆会在地面上造成干扰，导致限制超音速航班发生地点和时间的法规。跨越“声障”的影响不仅限于航空。克服这一障碍所涉及的原理适用于多个领域，包括汽车工程和太空探索。例如，理解车辆如何有效地穿越不同的气候层对成功让太空船重新进入地球大气层至关重要。近年来，开发减少音爆影响的超音速客机的兴趣再度升温。公司正在研究创新的设计和技术，以实现更安静的超音速旅行。这可能会彻底改变长途旅行，大幅度缩短飞行时间，使全球旅行变得更加便利。总之，“声障”代表了空气动力学和航空领域的重要里程碑。它象征着人类的聪明才智和对进步的不懈追求。随着技术的不断发展，高效且环保的超音速旅行的梦想可能很快就会成为现实，使我们能够比以往更快地穿越天空。跨越“声障”的旅程不仅展示了我们的能力，也激励着未来几代人去挑战可能性的极限。