Advanced Non-Linear Analysis
Virtually all physical processes of interest to engineers are non-linear to some extent. Often mathematical models of sufficient accuracy for design purposes can be formulated using linear approximations
Typical applications include:
• Advanced Contact Analysis
• Prediction of Structural Failure
• Non Linear Stress Analysis
• Elevated Temperature Structural Simulations
• Highly Non-Linear Materials
Contact Stress Analysis
Contacts are not applied by default in most finite element analysis even though frictional contact is the most common in almost all engineering situations. Utilizing the latest algorithms in our analysis Designit4u can help our clients predict the contact stresses in your application, be it an insertion/extraction, press-fit, or frictional contact, to help with design and verification.
Thermal analysis deals with analyzing the effects of temperature on materials and design. Three types of thermal effects, namely conduction, convection and radiation can be studied using advanced computer simulations. Designit4u engineers have experience with modeling many complex thermal analyses both steady state and transient.
Coupled Thermal-Structural Analysis
Coupled thermal and structural analysis is typically applied to structures that experience operating loads at high temperatures like automotive exhaust, engines.
All physical bodies have particular frequencies at which they will readily vibrate. The ability to predict these natural frequencies and the associated mode shapes is crucial to numerous areas of engineering In addition to identifying modes of vibration, forced vibration analysis can be conducted to determine the response of a structure to various types of excitation loading.
Typical forms of forced vibration analysis include:
• Harmonic Analysis
• Random Vibration Analysis
• Response Spectrum Analysis
• Full Transient Dynamic Analysis
Once the forced response of the system has been calculated, then a stress analysis can be carried out to determine the stresses and deflections through the system
The key benefit of this approach is that it can be fully automated and is much more rigorous than manual optimization procedures. Mathematical optimization also has the benefit that it frequently converges to design solutions that are counter-intuitive to engineers and hence are unlikely to be achieved by manual design or optimization.
Typical applications for FEA based optimization include:
• Stress Analysis based Optimization & Material Removal
• Natural Frequency Placement
• Temperature Distribution, Heat Transfer and Flux Optimization
• Optimization of Highly Non-Linear Systems
• Multi-Physics Optimization
Optimization- Size and Shape
In the size optimization method the thickness of the design variable parts are optimized
Shape optimization involves developing morphed shapes or design variables which explore all the shapes available within the design space.
Material Cost Reduction Studies
Material cost reduction can be achieved through a variety of methods. This includes complete design using alternate materials, material substitution and down-gauge studies, material utilization studies..
Wide variety of computer simulation based evaluation is now available to model and virtually simulate manufacturing feasibility for extrusion, tube bending, hydro-forming, casting, and forging analysis.
Reliability and Robustness
Reliability-based design for products can be offered through mathematical and mechanical models for actual computation methods and practices on the basis of the research of failure physics and combined with the reliability-based test and statistical analysis of failure data
Design for Six Sigma (DFSS)
DFSS is a highly disciplined process that helps a companies focus on developing and delivering near-perfect products and services
Metal Forming Analysis
Metal forming analysis is a virtual simulation of the process by complete simulation of press action in a stamping operation to form sheet metal parts. The analysis provides visual design verification. All aspects of forming: Stamping, Trimming, Flanging, Hemming and Spring back Analysis can be evaluated.
Durability and Fatigue Analysis
Structural components such as a control arms might be strong enough to withstand a single applied load. But what happens when the part operates over and over, day after day?
To predict component failure in such cases requires what’s called fatigue or durability analysis. Computer simulations determine how well parts will hold up during cyclic loading. Results are important in calculating and verifying safe part lifetimes. Parts and structures subjected to cyclic mechanical and thermal loads will suffer from fatigue.
Multi-Body Dynamics (MBD)
Multi-Body Dynamics can simulate the dynamics and control of multi-bodied mechanisms
- These models are designed to
- Assess Concept Feasibility
- Optimize Vehicle/Mechanism Design and Control System
- Quickly Analyze System for kinematic/dynamic failure
A kinematics simulation is done with an assembly of parts that are connected together by a variety of movable joints. When one of the joints is moved it causes the assembly to move
Design Sensitivity Analysis
Structural design sensitivity analysis concerns the relationship between design variables available to the design engineer and structural responses.
Typical response includes displacement, stress, strain, natural frequency, buckling load, acoustic response, frequency response among others.
Based on the sensitivity of the design variables like material property, sizing, component shape, and configuration, quick recommendations on design changes can be made
Topology & Free Size Optimization
In topology optimization, material is taken out of locations of low stress. During free size optimization method, the thickness of the design variable parts is reduced at locations of low stress and material is added in areas of high stress. This method leaves material only where necessary, which gives the load path.
Impact & Crash Analysis
The vast majority of mechanical design is based on static or equivalent static loading; that is, loading which doesn’t vary with time, therefore allowing the effects of momentum to be neglected. There are numerous applications however, in which it is necessary to consider cases with either short duration transient loading or impacts.
Typical applications include:
• Product Drop Test Qualification
• In-Vehicle Crash Test Qualification
• Catastrophic Failure Cases & Fault Loading
• Passively Safe Structure Design
• Impact Protection
• Explosion Protection
Numerous techniques are available to consider transient and impact loading depending on the duration of the loading event and the extent of the resulting deformation. These simulations are highly complex and time consuming.