RecurDyn

RecurDyn

Un'innovativa soluzione "Multibody Dynamics"

RecurDyn

RecurDyn è un prodotto FunctionBay Inc.

RecurDyn è una soluzione dedicata alla simulazione cinematica e dinamica dei meccanismi. Questa particolare area tecnica del CAE (Computer Aided Engineering), viene comunemente identificata dall’acronimo MBD (Multi Body Dynamics), in ragione del fatto che i meccanismi sono sempre sistemi di corpi variamente interconnessi, dotati di mobilità assoluta e relativa. Nell’affollato panorama dei codici di simulazione multibody, RecurDyn presenta delle peculiarità che lo rendono particolarmente interessante in termini di completezza, facilità d’uso, personalizzazione e prestazioni numeriche.

La completezza, si declina da un lato nelle funzioni piuttosto avanzate per la simulazione dei contatti e delle flessibilità strutturali, dall’altro nella gamma di verticalizzazioni interne, già predisposte per creare modelli anche complessi di sistemi meccanici molto diffusi.
La facilità d’uso è figlia di un’interfaccia pulita e ben organizzata, che permette di assemblare i modelli multibody quasi esclusivamente mediante il mouse. L’esperienza d’uso di RecurDyn è ulteriormente facilitata dal post-processore dedicato, che permette di creare grafici ed animazioni delle simulazioni in modo assolutamente intuitivo.
La personalizzazione del software e delle operazioni che si compiono al suo interno è affidata ad un ambiente integrato di programmazione, basato sui linguaggi C#, Visual Basic, o Python. Questo strumento, ideale per gli utenti che hanno esigenze più spinte, consente di creare blocchi di codice per automatizzare operazioni frequenti e per creare in pochi click veri e propri modelli.
Le prestazioni numeriche sono, infine, il principale punto di forza di RecurDyn. I modelli numerici vengono creati internamente utilizzando coordinate relative, cosicché il solutore ricorsivo dedicato risolve le equazioni in tempi che sono da 2 a 20 più bassi rispetto ai solutori standard.

A superior Multibody Dynamics solution with exceptional contact technology and powerful solver for large scale multibody models with multiple contacts and flexible bodies

Vantaggi principali

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   Interfaccia grafica user-friendly (GUI)

   Velocità di calcolo (risolutore ricorsivo)

   Analisi degli elementi finiti non lineari

   Toolkit: modellazione rapida del sistema tramite componenti predefiniti in RecurDyn

   Modellazione rapida di corpi flessibili sottoposti a grandi deformazioni (carta, gomma, etc.)

Documentazione

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Approfondimenti

CASE STUDY

Simulating the multiphysics of a residual current device

Ensuring the safety of users around electrical contacts

This article examines the simulation of an RCD to determine the factors that affect its response times.

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training courses

Catalogo corsi MULTIBODY

I corsi RecurDyn, progettati da EnginSoft, sono cuciti su misura per permettere ai nostri clienti di diventare efficaci nel minor tempo possibile. Per questo le sessioni dedicate alla presentazione delle funzionalità sono alternate a sessioni “hands-on”, dove i partecipanti iniziano a lavorare su casi studio semplici e successivamente su un caso pratico reale, che sono invitati a portare al corso.

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Scopri di più

Le nostre competenze in RecurDyn

CASE STUDY

Dynamic CFD analysis of a vertical-axis washing machine with a hydraulic balancer

The article describes a study on the behaviour of a vertical-axis washing machine's hydraulic balancer, which is a critical component that helps to balance the load during the spinning phase of the washing cycle. The study was conducted by SPM, a company that specializes in dynamic analysis, to confirm a hypothesis that the flexibility of the tub was causing the imbalance and to validate a proposed modification to stiffen the structure.

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CASE STUDY

Simulating the multiphysics of a residual current device

Ensuring the safety of users around electrical contacts

This article examines the simulation of an RCD to determine the factors that affect its response times.

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CASE STUDY

Plastic Film Dragging

The dynamics of flexible bodies as they interactthrough contact with other bodies

In this example, these features were tested by simulating the motion of a very thin plastic film (32µm) being dragged by two rollers.

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CASE STUDY

Stranding Machine

EnginSoft, in collaboration with MARIO FRIGERIO, developed a multibody model of a stranding machine

Stranding and closing planetary machines are huge pieces of equipment designed to twist multiple heavy spools of strand at noticeable speed, to manufacture large section steel ropes.

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CASE STUDY

Improving a coffee capsule machine’s capacity and performance using multibody simulation

Improvements achieved by optimizing laws of motion governing machine components

This technical article describes a project undertaken by OPEM to optimize and validate the laws of motion governing the moving operations of a machine that produces coffee capsules, namely the cut and weld unit, the film feeder, the conveyor and the support structure.

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CASE STUDY

Testing ParticleWorks coupled with RecurDyn to simulate water behavior in water technology products

LIXIL is trying to introduce Particleworks, a meshless multiparticle simulation (MPS) computational fluid dynamics (CFD) tool in the research and development of these products.

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CASE STUDY

Circuit Breakers

Multibody simulation is the best technology to analyze the dynamic behavior of safety circuit breakers

The premium software RecurDyn was used to simulate a Double Pole Single Throw Switch using three different modeling schemes. A comparison of the results provided useful information for the designers.

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CASE STUDY

Creating an accurate digital twin of a human user for realistic modeling and simulation

Multibody system simulation using biomechanical human body models in RecurDyn

This technical article describes a human body model (HBM) wizard developed for RecurDyn and discusses what is already possible and what is in the development pipeline for the near future. Biomotion Solutions provides software to quickly build HBMs in industrial-grade simulation packages.

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CASE STUDY

RecurDyn easily analyses the complex dynamics of a musical box

Analysis includes highly flexible bodies and extended contacts with their surfaces

This is a classic scenario that exploits the best features of RecurDyn software, such as the Full-Flex and the Geo-Contact technology.

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CASE STUDY

RecurDyn enables engineers to create full FE models of flexible belts

Faciliitates extraction of stresses and strains from entire structure and takes into account all friction forces, shape and misalignment dynamics and structural flexibility

A virtual prototype of a belt must necessarily include the high flexibility of the belt itself, as well as a detailed description of the contacts. This is another scenario where RecurDyn provides better functionality than its competitors.

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CASE STUDY

Fuel Injection

A multibody model was developed using RecurDyn to study the high-speed dynamic behavior of the injector during a typical work cycle

The model contains both rigid and flexible bodies: the pin was modelled using the proprietary Full Flex technology which includes a Finite Element body in the dynamic simulation.

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CASE STUDY

Controlled Floater for Marine Pipeline Towing

A system to simplify the towing and laying down of marine pipelines in shallow water fields

A developer of innovative equipment designed a system to simplify the towing and laying down of marine pipelines in shallow water fields.

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CASE STUDY

Using simulation and validation to build trust in new tools

A multibody simulation of a switch disconnector

This article describes the multibody simulation of a switch disconnector and its validation with experimental tests, undertaken by LOVATO Electric for the purpose of conducting a detailed evaluation of a potential new tool to design the mechanical part of its electrical devices.

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CASE STUDY

Forklift Dynamics

The forklift’s wheels were represented in detail to implement a sophisticated model of the tire features

A client wanted to evaluate the dynamic performance of a new-concept forklift, so a fully-functional multibody model of the forklift was built by assembling the client’s CAD geometries.

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CASE STUDY

Tracked Vehicle

RecurDyn offers two Toolkits that are completely dedicated to tracked vehicles

In this example, a tracked bulldozer was simulated to evaluate the dynamic behavior of the vehicle on different terrains and with different obstacles. The model can also be used to calculate the loads operating on the vehicle’s structure..

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CASE STUDY

Printer

RecurDyn offers a dedicated toolkit to pre-process, solve and post-process problems involving flexible media

The final portion of the paper path of a laser printer has been studied using the Media Transport Toolkit to evaluate the influence of the corrugating roller which is used to corrugate the sheet to keep it straight before falling into the tray.

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CASE STUDY

Analyzing the process of filling a flexible pouch by coupling multi-flexible-body dynamics and particle-based CFD simulation

Investigating the effects of the parameters to select the optimal machine configuration

Packaging companies are always striving to stay one step ahead of their competitors in providing the best solutions for product capacity.

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CASE STUDY

RecurDyn helps ensures passenger safety in faster, higher capacity detachable chair lifts

Software facilitates dynamic studies of complex multi-body models to predict accelerations; verify, shape and size structural parts

Dynamic studies are required to predict the accelerations, verify that the cams are properly shaped, and to extract the loads to structurally size the parts.

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CASE STUDY

Accurate modeling and simulation of belt-type continuously variable transmissions

RecurDyn facilitates virtualization of dynamic systems governed by both contacts and large flexibility

RecurDyn software allows belt-type systems, including CVTs, to be both modelled and simulated accurately. The dedicated “Belt Toolkit”, which is an automated modeling assistant, includes all of the components found in a belt-type transmission.

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CASE STUDY

Excavators

The influence of flexibility was considered with the use of both the Reduced Flex and the Full Flex options in RecurDyn

A multibody model of an excavator was developed to calculate the loads acting on the structure and to perform static structural verifications of the different components.

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CASE STUDY

Industrial Sheet Metal Processing Company

Salvagnini chooses RecurDyn for multibody analyses

Salvagnini is a reference in applying intelligence to sheet metal working and has selected RecurDyn software for its multibody analysis requirements, becoming the 500th commercial customer of FunctionBay Inc.

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CASE STUDY

Gluers

Studying the dynamics of cam mechanisms is crucial to ensure reliable, efficient and fast machines

In this example, a gluer machine was studied using RecurDyn

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CASE STUDY

A Great Team, Numerical Simulation and Experimental Testing

Will the customer be satisfied with the performance and the quality of the product?

Today, numerical simulation and experimental testing are used to qualify products in different stages of the development process.

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CASE STUDY

Engine Dynamics

A four-stroke engine was analyzed in depth by means of a detailed Multibody Dynamics (MBD) simulation

This type of highly-defined model provides valuable outputs: the contact analysis provides detailed information about the pressure and friction between the parts, which is useful for estimating wear

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