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supplier for simulation and testing

Icon Kinetics

FMD simulation

Flexible and rigid multibody simulation for acoustics

The MKS (multi-body simulation, also: multi-body system) enables the description of complex, mechanical systems with relatively moving individual bodies via structurally simplified models. It is applied where classical methods such as FEM are not economically feasible and thus enables valid decision-making bases for highly complex problems. 

You will receive from us a complete package for FMD with analytical preliminary considerations, the execution of the FMD as well as the interpretation of the results. As a result, you will receive actionable proposals for action.


FMD simulation is the first choice when...

A MBS is needed to analyze the dynamics of systems with multiple moving bodies. Such systems can have complex motions, forces, and moments that can be covered only at great expense or accurately by conventional methods such as the finite element method (FEM) or analytical mechanics. FMD is the first choice when...

  • ...systems with multiple moving parts need to be investigated.

  • ...the interaction between rigid and flexible elements is important.

  • ...the analysis of vibrations and dynamics is required.

Application examples

Typical problems where the FMD simulation comes into play

Drive systems

In mechanical drives such as gear drives, chain drives, motor-gear units, or systems with crank drives, FMD enables the study of power transmission, vibration, acoustics, wear, and efficiency by modeling the interactions between the components involved.

Vehicle dynamics

The study of chassis components, steering and suspension systems in automobiles and rail vehicles requires the consideration of complex interactions between moving, rigid and flexible parts, where FMD is more effective than other methods.

Acoustics of controls

Multi-body simulation helps investigate the haptics, acoustics and quality feel of controls. It enables the identification and minimization of unwanted noise or vibration and optimizes mechanical properties for a better user experience.

Adjustment mechanisms

For systems with adjustment mechanisms, the FMD analyzes the dynamics of the movement, loads and stability during adjustment processes. This allows the performance and service life of the system to be optimized by examining the interactions between moving parts.

E-bike drives

In mechanical drives such as gear drives, chain drives or belt drives, motor-gearbox units or systems with crank drives, FMD simulation enables the study of power transmission, vibration, acoustics, wear and efficiency by modeling the interactions between the components involved.

Wind energy plants

The rotor blades, tower and gearboxes of wind turbines interact under dynamic loads and wind conditions. FMD enables the analysis of vibrations, acoustics, stresses and the lifetime of components in such systems.

Robotics

In robotics, complex joint structures, kinematic chains and parallel mechanisms are often used, for which a MBS calculation is well suited to analyze the dynamics and interactions between the components.

Crane and lifting technology

In these systems, winches, booms and loads are often strongly interconnected. By using MBS calculation, dynamics, stability and load distribution can be investigated.

Biomechanics

In analyzing the motion and forces acting in biological systems such as joints, bones, and muscles, FMD can provide useful insights that are important for prosthesis development or sports performance analysis.

Novico's range of services

The complete package for FMD simulation

We see ourselves as a full-service FMD service provider for this demanding method. We are guided by the following steps, which we carry out carefully to achieve precise and reliable results:

System definition

We define the physical quantities, the moving bodies and their properties, and decide whether simulations in further physical disciplines will be integrated as stimuli. 

Modeling

We create the FMD model by defining the bodies, connections and forces acting on the system.

Airborne sound simulation

For the explicit prediction of acoustics, we extend the overall model with the simulation of airborne noise (so-called ATV+MATV). We determine noise character, radiation pattern, level and main contributors etc.

Solution of the system of equations of motion

Using numerical methods, we solve the equations of motion of the system to determine the dynamics of the bodies over time.

Validation

We validate the model against experimental data or comparison solutions to ensure that the model correctly represents the real system.

Analysis and optimization

The results of the simulation are analyzed to gain important insights into the behavior of the system and to propose optimizations, if necessary.

"Incorporating the complex multi-body simulation reduced the project lead time. We were able to quickly and efficiently evaluate major changes in advance in a simulation and draw appropriate conclusions." 


Dr. Florian Wohlleber
Head of Development Standard Parts / Tailgate Systems
Brose

Multi-body simulation in the development of e-bikes

Presentation with potential and practical examples

In this document, we explain the procedure for predicting acoustics and EMC in e-bikes and describe our range of services for multiphysics simulation. You will see visualized calculation results from the order of a well-known manufacturer of e-bikes. 

View presentation

Is a FMD the right method for your application? 

You are unsure? We would be happy to advise you on evaluating your use case and develop an answer to your challenge - free of charge and without obligation. 

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Dr.-Ing.
Olgierd Zaleski

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Novicos Ltd.

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