dynamic unbalance

简明释义

动态不平衡

英英释义

例句

1.The rotating equipment exhibited signs of dynamic unbalance 动态不平衡, leading to excessive noise.

旋转设备表现出dynamic unbalance 动态不平衡的迹象，导致噪音过大。

2.Regular maintenance checks can help detect dynamic unbalance 动态不平衡 early and prevent costly repairs.

定期的维护检查可以帮助及早发现dynamic unbalance 动态不平衡，从而防止昂贵的维修。

3.To reduce wear on the bearings, we need to correct the dynamic unbalance 动态不平衡 in the fan assembly.

为了减少轴承的磨损，我们需要修正风扇组件中的dynamic unbalance 动态不平衡。

4.The engineer identified the source of the vibration as a dynamic unbalance 动态不平衡 in the rotor.

工程师确定振动的来源是转子中的dynamic unbalance 动态不平衡。

5.After balancing the wheels, the car showed no signs of dynamic unbalance 动态不平衡 during the test drive.

在平衡车轮后，汽车在试驾过程中没有显示出dynamic unbalance 动态不平衡的迹象。

作文

In the realm of mechanical engineering and dynamics, the term dynamic unbalance refers to a condition where the mass distribution of a rotating body is not uniform, leading to vibrations during operation. This phenomenon can occur in various machinery, such as turbines, motors, and fans, where the imbalance results from uneven mass distribution or wear and tear over time. Understanding dynamic unbalance is crucial for engineers and technicians as it directly affects the performance, efficiency, and lifespan of mechanical systems.When a rotating object is perfectly balanced, it spins smoothly without any vibrations. However, when there is a dynamic unbalance, the center of mass does not coincide with the axis of rotation. This misalignment causes the object to experience centrifugal forces that generate vibrations, which can lead to further mechanical issues if not addressed promptly. For instance, excessive vibration can cause bearings to wear out faster, leading to costly repairs and downtime.To illustrate the importance of addressing dynamic unbalance, consider a scenario involving a large industrial fan used in ventilation systems. If the fan blades are unevenly weighted due to manufacturing defects or damage, the fan will operate with a dynamic unbalance. As the fan spins, the uneven mass distribution creates significant vibrations, resulting in noise and potential structural damage to the mounting system. In such cases, maintenance teams must regularly check for signs of dynamic unbalance and take corrective measures, such as balancing the fan blades or replacing damaged parts.Moreover, dynamic unbalance can also have implications for safety. In extreme cases, the vibrations caused by an unbalanced rotating object can lead to catastrophic failures. For example, in aviation, an unbalanced rotor in a helicopter can lead to loss of control, posing serious risks to passengers and crew. Therefore, understanding and mitigating dynamic unbalance is vital not only for operational efficiency but also for ensuring safety in various industries.Engineers employ several techniques to diagnose and correct dynamic unbalance. One common method is vibration analysis, where sensors are placed on machinery to measure vibrations and identify imbalances. Once detected, corrective actions can be taken, such as adding weights to balance the rotating body or adjusting its alignment. Additionally, modern technologies like computer simulations and advanced balancing machines have made it easier to analyze and resolve dynamic unbalance issues.In conclusion, dynamic unbalance is a critical concept in mechanical engineering that affects the performance and safety of rotating machinery. By understanding the causes and consequences of dynamic unbalance, engineers can implement effective solutions to minimize its impact. Regular maintenance, monitoring, and the use of advanced technologies are essential in ensuring that machines operate smoothly and efficiently, ultimately leading to increased productivity and reduced operational costs. The significance of addressing dynamic unbalance cannot be overstated, as it plays a crucial role in the longevity and reliability of mechanical systems across various industries.

在机械工程和动力学领域，术语动态不平衡指的是旋转物体的质量分布不均匀，从而在运行过程中导致振动的状态。这种现象可以发生在各种机器中，例如涡轮机、电动机和风扇，其中不平衡是由于质量分布不均或随着时间的推移而造成的磨损。理解动态不平衡对工程师和技术人员至关重要，因为它直接影响机械系统的性能、效率和使用寿命。当一个旋转物体完美平衡时，它平稳地旋转而没有任何振动。然而，当存在动态不平衡时，质心与旋转轴并不重合。这种不对齐会导致物体受到离心力，从而产生振动，如果不及时处理，可能导致进一步的机械问题。例如，过度的振动会导致轴承更快磨损，从而导致昂贵的维修和停机。为了说明解决动态不平衡的重要性，可以考虑一个涉及用于通风系统的大型工业风扇的场景。如果风扇叶片由于制造缺陷或损坏而重量不均，风扇将以动态不平衡的方式运行。当风扇旋转时，不均匀的质量分布会产生显著的振动，导致噪音和潜在的结构损坏。在这种情况下，维护团队必须定期检查动态不平衡的迹象，并采取纠正措施，例如平衡风扇叶片或更换损坏的部件。此外，动态不平衡还可能对安全产生影响。在极端情况下，由于不平衡的旋转物体引起的振动可能导致灾难性的故障。例如，在航空中，直升机中不平衡的转子可能导致失去控制，对乘客和机组人员构成严重风险。因此，理解和减轻动态不平衡不仅对操作效率至关重要，而且对确保各行业的安全也至关重要。工程师采用多种技术来诊断和纠正动态不平衡。一种常见的方法是振动分析，在机器上放置传感器以测量振动并识别不平衡。一旦检测到，就可以采取纠正措施，例如添加配重以平衡旋转体或调整其对齐。此外，现代技术如计算机模拟和先进的平衡机使得分析和解决动态不平衡问题变得更加容易。总之，动态不平衡是机械工程中的一个关键概念，影响旋转机械的性能和安全。通过理解动态不平衡的原因和后果，工程师可以实施有效的解决方案以最小化其影响。定期维护、监控和使用先进技术对于确保机器平稳高效运行至关重要，最终提高生产力并降低运营成本。解决动态不平衡的重要性不容低估，因为它在各行业的机械系统的耐用性和可靠性中发挥着至关重要的作用。