Vibration control devices based on relative acceleration, or inerters, are all the rage these days. So it's no surprise that inerter models are making their way into OpenSees. As far as I know, two inerter elements are available: InertiaTruss and Inerter. There has also been a third attempt at inerters, but via a material model. … Continue reading Inerters Everywhere
Tag: Mass
Mass and Weight
Many structural analysis software programs will automatically define mass based on the input gravity loads. OpenSees is not one of those programs. You have to define mass and weight separately. Fortunately, using variables for units makes the mass and weight definitions easy. Plus, if using customary units, you won't have to waste time Googling the … Continue reading Mass and Weight
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