1. Second-order system damping The smaller the ζ, the smaller the rising time tr; the larger the ζ, the greater the tr. The larger the natural frequency ωn, the smaller the tr, and vice versa, the greater the tr. The natural frequency has a angular velocity framework, and the damping ratio is an unmeasured parameter.
2. The damping ratio determines the oscillation performance (stability) of the second-order system. Increasing the damping ratio can weaken the oscillation performance of the system (enhancing the stability of the system), that is, reduce the over-modulation, reduce the number of shocks, but increase the rise time and peak time. For the molecular constant of the second-order system, it determines the size of the output value when the system is stable.
3. Mutual relationship. It can be seen from the dynamic performance index that the smaller the damping ratio, the smaller the rise time, the smaller the peak time, the greater the overmodulation, the greater the adjustment time, the greater the damping ratio, the greater the rise time, the greater the peak time, the smaller the overmodulation, the smaller the adjustment time, and the relationship between the peak time and the damping ratio is mutual.
4. Stability: The damping ratio also affects the stability of the system. For a second-order system, when the damping ratio is less than 1, the system is stable; when the damping ratio is greater than 1, the system is stable; but when the damping ratio is equal to 1, the system is in a critical stable state, and stability problems caused by the boundary situation may occur.
5. The maximum overmodulation in the dynamic performance index of the second-order system is only related to the damping ratio. It can be seen that the damping ratioThe frequency of the damping natural oscillation angle of the system is the main dynamic time domain characteristic parameter of the second-order measurement system.
Reproducibility: refers to the fact that when a parameter is repeatedly measured with the same instrument under the condition that the measurement conditions remain unchanged, the difference between each measured value and the average value relative to the large scale range Percentage. This is an important indicator of the stability of instruments and meters. Generally, it needs to be checked during commissioning and daily verification.
At this time, the performance indicators of the transient response are: maximum overtuning σp - the maximum value of the response curve deviation from the steady-state value, which is often expressed as a percentage, that is, the maximum percentage over-tuning and the maximum over-tuning indicate the relative stability of the system.
Security: Security refers to the security of the test system that can protect user data.For the test system, security is a very important performance indicator, which is related to whether the test system can protect user data from leakage or attack.
Super modulation is the response process curve of the linear control system under the step signal input, that is, an index value of the step response curve to analyze the dynamic performance. Over-tuning is also called maximum deviation (maximum deviation) or over-dump. Deviation refers to the difference between the adjusted parameter and the given value.
the time it reaches the stable value for the first time. According to the query Baidu Education, the rising time of the second-order under-damping system is the time when the leap response curve of the system reaches a stable value for the first time.In automatic control, the second-order system with under-damping refers to the second-order system with a damping ratio greater than 0 and less than 1.
The smaller the damping ratio of the second-order system, the smaller the rise time tr; the larger the ζ, the greater the tr. The larger the natural frequency ωn, the smaller the tr, and vice versa, the greater the tr. The natural frequency has a angular velocity framework, and the damping ratio is an unmeasured parameter.
T1. The adjustment time of the second-order damping system is 3T1. When the unit step response of the second-order system lacking damping, the characteristic root of the characteristic equation of the closed-loop system is a pair of conjugated complex roots. Among the output, the damping oscillation angle frequency and the damping angle.
1. Therefore, the change in the damping ratio will affect the oscillation frequency, amplitude and duration of the system.Stability: The damping ratio also affects the stability of the system.
2. The smaller the damping ratio of the second-order system, the smaller the rise time tr; the larger the ζ, the greater the tr. The larger the natural frequency ωn, the smaller the tr, and vice versa, the greater the tr. The natural frequency has a angular velocity framework, and the damping ratio is an unmeasured parameter.
3. When the damping ratio is less than 1, the unit step response curve of the system will oscillate.
4. The damping ratio determines the oscillation performance (stability) of the second-order system. Increasing the damping ratio can weaken the oscillation performance of the system (enhancing the stability of the system), that is, reduce the overmodulation, reduce the number of shocks, but increase the rise time and peak time. For the molecular constant of the second-order system, it determines the size of the output value when the system is stable.
5. ζ is the damping ratio.In general, with the continuous increase of ζ, the transient response graphic vibration amplitude of its system decreases and gradually tends to stabilize. When ζ=0, the system is in a non-damping state, and the transient response of the system is a periodic function of constant amplitude.
Import export cost optimization-APP, download it now, new users will receive a novice gift pack.
1. Second-order system damping The smaller the ζ, the smaller the rising time tr; the larger the ζ, the greater the tr. The larger the natural frequency ωn, the smaller the tr, and vice versa, the greater the tr. The natural frequency has a angular velocity framework, and the damping ratio is an unmeasured parameter.
2. The damping ratio determines the oscillation performance (stability) of the second-order system. Increasing the damping ratio can weaken the oscillation performance of the system (enhancing the stability of the system), that is, reduce the over-modulation, reduce the number of shocks, but increase the rise time and peak time. For the molecular constant of the second-order system, it determines the size of the output value when the system is stable.
3. Mutual relationship. It can be seen from the dynamic performance index that the smaller the damping ratio, the smaller the rise time, the smaller the peak time, the greater the overmodulation, the greater the adjustment time, the greater the damping ratio, the greater the rise time, the greater the peak time, the smaller the overmodulation, the smaller the adjustment time, and the relationship between the peak time and the damping ratio is mutual.
4. Stability: The damping ratio also affects the stability of the system. For a second-order system, when the damping ratio is less than 1, the system is stable; when the damping ratio is greater than 1, the system is stable; but when the damping ratio is equal to 1, the system is in a critical stable state, and stability problems caused by the boundary situation may occur.
5. The maximum overmodulation in the dynamic performance index of the second-order system is only related to the damping ratio. It can be seen that the damping ratioThe frequency of the damping natural oscillation angle of the system is the main dynamic time domain characteristic parameter of the second-order measurement system.
Reproducibility: refers to the fact that when a parameter is repeatedly measured with the same instrument under the condition that the measurement conditions remain unchanged, the difference between each measured value and the average value relative to the large scale range Percentage. This is an important indicator of the stability of instruments and meters. Generally, it needs to be checked during commissioning and daily verification.
At this time, the performance indicators of the transient response are: maximum overtuning σp - the maximum value of the response curve deviation from the steady-state value, which is often expressed as a percentage, that is, the maximum percentage over-tuning and the maximum over-tuning indicate the relative stability of the system.
Security: Security refers to the security of the test system that can protect user data.For the test system, security is a very important performance indicator, which is related to whether the test system can protect user data from leakage or attack.
Super modulation is the response process curve of the linear control system under the step signal input, that is, an index value of the step response curve to analyze the dynamic performance. Over-tuning is also called maximum deviation (maximum deviation) or over-dump. Deviation refers to the difference between the adjusted parameter and the given value.
the time it reaches the stable value for the first time. According to the query Baidu Education, the rising time of the second-order under-damping system is the time when the leap response curve of the system reaches a stable value for the first time.In automatic control, the second-order system with under-damping refers to the second-order system with a damping ratio greater than 0 and less than 1.
The smaller the damping ratio of the second-order system, the smaller the rise time tr; the larger the ζ, the greater the tr. The larger the natural frequency ωn, the smaller the tr, and vice versa, the greater the tr. The natural frequency has a angular velocity framework, and the damping ratio is an unmeasured parameter.
T1. The adjustment time of the second-order damping system is 3T1. When the unit step response of the second-order system lacking damping, the characteristic root of the characteristic equation of the closed-loop system is a pair of conjugated complex roots. Among the output, the damping oscillation angle frequency and the damping angle.
1. Therefore, the change in the damping ratio will affect the oscillation frequency, amplitude and duration of the system.Stability: The damping ratio also affects the stability of the system.
2. The smaller the damping ratio of the second-order system, the smaller the rise time tr; the larger the ζ, the greater the tr. The larger the natural frequency ωn, the smaller the tr, and vice versa, the greater the tr. The natural frequency has a angular velocity framework, and the damping ratio is an unmeasured parameter.
3. When the damping ratio is less than 1, the unit step response curve of the system will oscillate.
4. The damping ratio determines the oscillation performance (stability) of the second-order system. Increasing the damping ratio can weaken the oscillation performance of the system (enhancing the stability of the system), that is, reduce the overmodulation, reduce the number of shocks, but increase the rise time and peak time. For the molecular constant of the second-order system, it determines the size of the output value when the system is stable.
5. ζ is the damping ratio.In general, with the continuous increase of ζ, the transient response graphic vibration amplitude of its system decreases and gradually tends to stabilize. When ζ=0, the system is in a non-damping state, and the transient response of the system is a periodic function of constant amplitude.
Segmenting data by HS code and region
author: 2024-12-23 12:02How to leverage customs rulings data
author: 2024-12-23 10:49How to find untapped export partners
author: 2024-12-23 10:01Real-time freight schedule optimization
author: 2024-12-23 09:58HS code-based quota management
author: 2024-12-23 09:21Processed nuts HS code references
author: 2024-12-23 11:26Industry-specific import regulation data
author: 2024-12-23 11:10How to manage cross-border complexity
author: 2024-12-23 11:00HS code-based compliance in Asia-Pacific
author: 2024-12-23 10:14HS code utilization in bonded warehouses
author: 2024-12-23 09:46615.73MB
Check598.74MB
Check839.25MB
Check662.38MB
Check134.28MB
Check119.19MB
Check119.39MB
Check512.64MB
Check951.95MB
Check218.67MB
Check576.59MB
Check823.12MB
Check955.46MB
Check228.93MB
Check781.39MB
Check166.28MB
Check856.34MB
Check993.94MB
Check156.76MB
Check233.38MB
Check845.51MB
Check644.12MB
Check567.42MB
Check928.78MB
Check828.85MB
Check583.23MB
Check634.98MB
Check711.44MB
Check789.27MB
Check773.98MB
Check915.24MB
Check338.26MB
Check463.87MB
Check516.45MB
Check975.96MB
Check518.27MB
CheckScan to install
Import export cost optimization to discover more
Netizen comments More
709 Global trade fair insights
2024-12-23 11:14 recommend
816 Logistics optimization by HS code
2024-12-23 10:45 recommend
2841 Surgical instruments HS code classification
2024-12-23 10:29 recommend
1880 Real-time port data insights
2024-12-23 10:05 recommend
580 HS code-based supply chain digitization
2024-12-23 09:28 recommend