In the post Checking the Soviets: Determining the Eccentric Moment, we discussed the process of determining this parameter and more for a vibratory eccentric. The importance of the pendulum frequency--and the way that rotational moment of inertia and mass moment of inertia can easily be related with this kind of configuration--was discussed in Two Papers on … Continue reading Determining the Eccentric Moment, Rotational Inertia and Pendulum Frequency for a Vibratory Eccentric
In the earlier post Tapered Keys and Their Use In Vulcan Hammers we had a general discussion of tapered keys, the theory behind them and their application in Vulcan hammers. In this post we'll look at one specific application--the Vulcan 560 Slide Bar Key--and see how Coulombic friction applies in this case of a self-locking (hopefully) … Continue reading An Example of a Self-Locking Wedge: the Vulcan 560 Slide Bar Key
A common problem in elementary statics is picking up a load with a sling. It's an important one in heavy lifting, and Vulcan certainly experienced a great deal of that. We're going to look at an example: the Internal Pile Hammer IPH-16. It's shown with its skid on the truck above; we're going to look … Continue reading An Example of Balancing a Sling Picked-Up Load: the IPH-16
More Resources Foundation Design and Analysis: Deep Foundations, Pile Dynamics Design and Construction of Driven Pile Foundations, 2016 Edition. The second volume covers this topic. Overview Now we come to the topic that was the genesis of this and the related sites: pile dynamics. There's quite a lot on the subject, so an extensive review … Continue reading Driven Pile Design: Wave Equation Analysis
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