How do you measure dynamic loading of an actuator?

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SUMMARY

The discussion centers on measuring the dynamic loading of linear actuators, specifically addressing the confusion surrounding static and dynamic load capacities. A participant measured a maximum static load of 110N using a force gauge. The conversation highlights that dynamic load capacity refers to the load an actuator can handle at its minimum rated speed, emphasizing the relationship between load and actuator speed. Understanding these concepts is crucial for accurate actuator performance assessment.

PREREQUISITES
  • Understanding of linear actuator specifications
  • Familiarity with force measurement tools, specifically force gauges
  • Knowledge of static vs. dynamic load concepts
  • Basic principles of motion, including acceleration and velocity
NEXT STEPS
  • Research the specifications of linear actuators, focusing on dynamic load capacity
  • Learn how to interpret actuator datasheets effectively
  • Explore the relationship between load, speed, and friction in actuator performance
  • Investigate methods for measuring dynamic loads in mechanical systems
USEFUL FOR

Engineers, mechanical designers, and technicians involved in actuator selection and performance evaluation will benefit from this discussion.

nomisme
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If I have a linear actuator, how can I find out how much force it can move with a constant velocity?
 
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nomisme said:
If I have a linear actuator, how can I find out how much force it can move with a constant velocity?

Look at the datasheet for the static force. Why are you thinking there will be a constant velocity? Is it pushing against a friction force? If it is just pushing against a mass or moment of inertia, there will be an acceleration...
 
berkeman said:
Look at the datasheet for the static force. Why are you thinking there will be a constant velocity? Is it pushing against a friction force? If it is just pushing against a mass or moment of inertia, there will be an acceleration...

Hi Berkeman,
Thanks for getting me back.
I actually used a force gauge to measure the maximum static load for my actuator. It turned out to be 110N.

Sorry I may have added some confusions by assuming the constant velocity thing. I want to retract this statement.
You are right that the more loading you have the slower the actuator goes.

The thing I am really confused about is the term "dynamic load" which can be found in the datasheet of the actuators. Does it mean the relationship between loading and speed of the actuator? By the term "dynamic load capacity", does it mean the loading at the minimum rated speed of the actuator?

I am really stuck.. My boss is killing me... I feel as if I have learned nothing from my undergraduate degree. Please help!
 
Last edited:

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