Recent content by Apothus

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    Calculating acceleration constant for linear actuator

    I have made some progress on these calculations. My expectation is to calculate the inertia of the load and with the rated torque of the motor determine my acceleration T=Iα Load inertia comes from a ball screw Is driving a carriage Ic with a mass mc and driving a constant downwards force. Not...
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    Calculating acceleration constant for linear actuator

    A lot of this work is based on existing actuators we have at work. They are a bit of a mix but we are shifting everything towards BLDC motors with a closed loop control system. The idea behind this work is to actually design our actuators and control systems with a higher level of design than we...
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    Calculating acceleration constant for linear actuator

    I am trying to model the maximum performance of a linear actuator assembly and create a flexible excel tool for calculating other systems in the future. The actuators are simple ball screws driven through a gearbox by a motor, typically BLDC so the torque is relatively constant over most of the...
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    MATLAB - piecewise defined Fn as periodic

    Homework Statement We have been provided with a graph of a function modeled by F(t)=a-aU(t-1)+(-3/2.5*t+4.2)U(t-1)-(-3/2.5*t+4.2)U(t-3.5) I have entered this into MATLAB and it replicates the graph we have been provided with but we now need to extend this as an Even function.
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