What does dynamic balance mean
In mechanical engineering and daily life, "dynamic balance" is a high-frequency term, especially when it comes to rotating equipment. This article will combine popular topics across the network for the past 10 days to systematically analyze the definition, application scenarios and technical points of dynamic balance, and present core information through structured data.
1. Definition and principle of dynamic balance
Dynamic balancing refers to the process by adjusting the mass distribution of rotating components so that centrifugal forces cancel each other during operation, thereby reducing vibration and noise. Here is a comparison between dynamic balance and static balance:
| type | definition | Applicable scenarios |
|---|---|---|
| Quiet balance | Even mass distribution in static state | Low-speed rotating parts (such as flywheels) |
| Dynamic balance | Centrifugal force balance during exercise | High-speed rotating equipment (such as turbines, tires) |
2. Recent hot related cases
In the past 10 days, the following events have attracted public attention to dynamic balance technology:
| date | event | Related Technology |
|---|---|---|
| 2023-11-05 | A new energy vehicle recalled due to poor dynamic balance of wheel hub | Tire dynamic balance detection |
| 2023-11-08 | Industrial robot vibration fault analysis report is released | Servo motor balance correction |
3. Core technical indicators of dynamic balance
Three major parameters for measuring the effect of dynamic balance:
| index | unit | Allowed range |
|---|---|---|
| Residual imbalance | g·mm/kg | ≤0.5 (precision instrument) |
| Vibration speed | mm/s | ≤2.8 (ISO standard) |
| Phase angle deviation | ° | ≤±15 |
4. Typical application scenarios of dynamic balance
According to recent industry data, dynamic balance technology is mainly used in the following fields:
| industry | Equipment Example | Accuracy requirements |
|---|---|---|
| Automobile manufacturing | Transmission shaft, crankshaft | Level G2.5 |
| Aerospace | Turbine engine | Level G0.4 |
| Home appliances | Washing machine inner tube | Level G6.3 |
5. Technology development trends
In light of recent industry trends, dynamic balance technology presents two major development directions:
1.Intelligent detection: Use AI algorithms to predict imbalances in real time, such as the online motor balance system displayed by Tesla's latest patent
2.Miniaturization equipment: For small components such as drone propellers, the demand for high-precision portable balancers has increased by 35% (2023Q3 data)
6. Answers to common misunderstandings
Regarding recent hot issues on the Internet:
•Misconception 1: "Only do dynamic balance once" → In fact, regular inspections should be carried out (it is recommended that cars be every 10,000 kilometers per time)
•Misconception 2: "Weight symmetry means balance" → Three-dimensional spatial mass distribution needs to be considered (such as aircraft engine blades)
Conclusion
Dynamic balance technology directly affects equipment life and safety. With the development of precision manufacturing and new energy industries, its importance will continue to increase. It is recommended that users choose the corresponding standard balanced services based on the device type and pay attention to the latest technical trends.
check the details
check the details
en
