mechanical efficiency

简明释义

机械效率

英英释义

例句

1.A higher mechanical efficiency means less energy wasted in a machine.

更高的机械效率意味着机器中浪费的能量更少。

2.The mechanical efficiency of this pump is rated at 85%, making it very effective.

这台泵的机械效率评级为85%，使其非常有效。

3.The engine's mechanical efficiency is crucial for reducing fuel consumption.

发动机的机械效率对于减少燃料消耗至关重要。

4.Engineers are always looking for ways to enhance mechanical efficiency in their designs.

工程师们总是在寻找提高设计中机械效率的方法。

5.Improving the mechanical efficiency of the conveyor belt can increase production rates.

提高输送带的机械效率可以提高生产率。

作文

In the world of engineering and physics, the concept of mechanical efficiency plays a crucial role in understanding how machines and systems perform. Mechanical efficiency is defined as the ratio of useful work output to the total work input, usually expressed as a percentage. This measurement is vital because it indicates how well a machine converts energy into work. For instance, if a machine consumes 100 joules of energy and produces 80 joules of useful work, its mechanical efficiency would be 80%. This means that 20% of the energy is wasted, often due to friction, heat, or other forms of energy loss.The importance of mechanical efficiency can be observed in various applications, from simple machines like levers and pulleys to complex systems such as engines and turbines. In the automotive industry, for example, improving the mechanical efficiency of an engine can lead to better fuel economy and reduced emissions. Engineers strive to design engines that maximize the conversion of fuel energy into kinetic energy while minimizing losses.Moreover, mechanical efficiency is not only relevant in mechanical systems but also in biological systems. For instance, when analyzing human movement, biomechanics researchers study the mechanical efficiency of muscles and joints during activities like running or jumping. Understanding how efficiently the body uses energy can help in designing better training programs for athletes, leading to improved performance and reduced risk of injury.Another significant area where mechanical efficiency is critical is in renewable energy systems. Wind turbines and solar panels are designed to maximize their mechanical efficiency to harness natural resources effectively. The more efficient these systems are, the more energy they can produce, which is essential for meeting the growing global demand for sustainable energy sources.In conclusion, mechanical efficiency is a fundamental concept that transcends various fields of study and application. Whether in engineering, biology, or renewable energy, understanding and improving mechanical efficiency is key to optimizing performance and reducing waste. As technology advances, the pursuit of higher mechanical efficiency will continue to drive innovation and sustainability, ultimately benefiting society as a whole.

在工程和物理学的世界中，机械效率的概念在理解机器和系统如何运作方面起着至关重要的作用。机械效率被定义为有用功输出与总功输入的比率，通常以百分比表示。这个测量非常重要，因为它表明机器将能量转化为工作的效率。例如，如果一台机器消耗100焦耳的能量并产生80焦耳的有用功，那么其机械效率将为80%。这意味着20%的能量被浪费，通常是由于摩擦、热量或其他形式的能量损失。机械效率的重要性可以在各种应用中观察到，从简单的杠杆和滑轮等机械到复杂的系统如发动机和涡轮。在汽车工业中，例如，提高发动机的机械效率可以带来更好的燃油经济性和减少排放。工程师们努力设计最大化燃料能量转化为动能的发动机，同时最小化损失。此外，机械效率不仅与机械系统相关，也与生物系统密切相关。例如，在分析人类运动时，生物力学研究人员研究肌肉和关节在跑步或跳跃等活动中的机械效率。了解身体如何高效利用能量可以帮助设计更好的运动训练计划，从而提高运动表现并降低受伤风险。另一个机械效率至关重要的领域是可再生能源系统。风力涡轮机和太阳能电池板被设计为最大化其机械效率，以有效利用自然资源。这些系统越高效，就能产生越多的能量，这对满足全球对可持续能源的日益增长的需求至关重要。总之，机械效率是一个基本概念，超越了多个研究和应用领域。无论是在工程、生物学还是可再生能源中，理解和提高机械效率是优化性能和减少浪费的关键。随着科技的发展，追求更高的机械效率将继续推动创新和可持续发展，最终使整个社会受益。