Dig where you stand with our new digging force model
My former manager used to say: “dig where you stand” when I was trying to improve the entire company’s processes. He meant that I had more impact focusing on the things I’m responsible for rather than trying to change everything everywhere.
We applied the same philosophy to an existing gap in heavy equipment system simulation world: the digging force estimation. Historically, we used to rely on Discrete Element Modeling or customer’s in-house code to apply digging forces to the Simcenter Amesim’s model.
This is no longer needed since Simcenter Amesim 2019.2 features a digging force model based on Fundamental Earth Moving Equations.
This model allows to apply forces to the bucket and understand its impact on the pistons chamber pressures and on the entire system.
Thanks to digging forces calculations, you can assess dug volume for different soil properties (rocks, sand …) and on different topological configurations.
As an example, we could optimize the bucket size. Oversizing the bucket will cause extra load, swing, and dump times and extra machine heat when the operator is stalling the bucket. When using an oversized bucket, the machine becomes tippy and the operator will restrain from full bucket loads.
So, the extra weight of bucket becomes a boat anchor hanging on the end of the arm rather than an advantage. We can do a batch run with different buckets capacities and weights and find an optimum for a given bucket. Indeed, if the bucket is oversized, the cycle time increases drastically compared to the increased quantity of dig soil.
Ti piacerebbe ricevere contenuti come questi direttamente via mail?
Iscriviti alla nostra newsletter!
Simulazione dinamica 0D/1D multi-dominio per sistemi e componenti
Con modelli matematici parametrici e completamente validati, Simcenter Amesim ti permette di creare un modello digitale del tuo prodotto e prevederne le prestazioni dinamiche e integrate, durante un ciclo di lavoro. Il software fornisce gli andamenti di grandezze importanti in fase di progettazione, come: portate, pressioni, temperature, potenze, tensioni, voltaggi, energie dissipate, forze, accelerazioni, efficienze, masse in gioco, umidità relative..