Last Update October 16, 2017

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L.K. ENGINEERING (LKE) s.r.o., has been providing design and detailed analysis services in wide range of industrial engineering. Company activity is focused on structural analyses of mechanical components, consultations in problem solving and special calculation methodology development.

LKE provides services to diverse groups of clients including developers, owners, and design companies. By means of advanced computational technologies, deep knowledge, and own experience, LKE helps to increase competitiveness and reliability of customer's products while reducing development costs.

 

 

L.K. Engineering s.r.o. - Pictures

Contact info #1

Martin Komarek
+420 543 215 682
Technical Director
+420 543 215 683
Videnska 55, Brno 639 00, Czech Republic

STRUCTURAL ANALYSIS

In the area of stress analyses the company provides stress results in 2-D or 3-D finite element models. Based on the analyzed stresses the company can propose the structure modifications to satisfy the design and operation requirements or propose more effective solution to increase lifetime and reduce the product price.

Analysis Types:

  • Static analysis
  • Material/geometrical linearity and non-linearity Lifetime calculation
  • Low cycle fatigue
  • high cycle fatigue Crack propagation analysis Structure optimization to maximize lifetime
  • Reduce weight
  • Reduce cost Combined problems
  • Large assemblies including friction effects
  • Complex contact analyses
  • Hyperelasticity: rubber components
  • Creep

Examples:

  • Design or confi guration change to satisfy requirements for weight, cost, lifetime and structural strength.
  • Designs comparison pafter the material, manufacturing technology or geometry change, investigating impact on the component strength, lifetime, deformation, etc.
  • Lifetime calculation based on low cycle fatigue analysis for components with local plastic deformation (number of cycles to crack initiation).
  • Modeling of the crack propagation inside the structure and the residual lifetime calculation.

THERMAL ANALYSIS

LKE has extensive experience in calculation of the heat transfer including conduction, convection and radiation effects. An appropriate modification of structure can be proposed based on the thermal analysis to optimize the heat flow and increase lifetime of the product.

Analyses Types:

  • Heat transfer
  • By convection
  • By conduction
  • By radiation Time effect history
  • Steady state
  • Transient Combination with other analyses
  • Flow analysis of high temperature exhaust gas or cooling fluid
  • Calculated temperature distribution is an input for the structural analysis

Examples:

  • Thermal loading of the structure deformation and stress due to non-uniform temperature distribution.
  • Temperature distribution in the assembly
  • Cooling of components heated by ambient conditions or by electric current.
  • Heating of components or fluid, heat transfer in boilers or heat exchangers.
  • Thermal analysis provides input data for the structural and fatigue analysis.

DYNAMIC ANALYSIS

LKE provides modal analyses, response spectrum analyses, seismic and dynamic transient analyses. Based on these analyses we are able to predict or extend the lifetime of the anlyzed structures in consideration of dynamic effects or to eliminate vibrations.

Analyses Types:

  • Free vibration
  • Modal analysis (natural frequencies) Forced vibration
  • Harmonic response analysis
  • Transient analysis
  • Spectrum analysis Operating machines repairs
  • Vibration source identification
  • Vibration elimination Failure cause identification
  • Critical location analysis
  • Impact of vibration on the failure analysis Seismic analyses
  • According to ASME Code, EN Eurocode, ISO

Examples:

  • Resonance elimination

- - calculation of component or assembly natural frequencies. The target is to tune the structure so that the natural frequencies are away from excitation frequencies.

  • Response to forced vibration analysis

- - response analysis to the forced vibration identifies critical locations which are further evaluated according to applicable requirements.

  • Seismic qualification

- - Components qualification to a seismic loading according to appropriate Code. Dynamic analysis provides

CFD ANALYSIS

Computational fluid dynamics (CFD) analysis is one of the most complex tasks in mechanical engineering. Physical experiment in fluid dynamic is cost and time consuming. Using numerical flow simulation seems to be very good alternative method.

In this area we use both commercial products as well as we develop our own software focused on compressible fluid flow computations.

Analyses Types:

  • External aerodynamics
  • Flow around external bodies
  • Aeronautical, automotive configurations, civil structures Internal aerodynamics
  • Flow inside of internal chambers, channels, etc. Hydrodynamics
  • Flow of liquid phase Fluid/Structure Interaction
  • Fluid induced vibration and deformation
  • Heat transfer due to a convection Development of advanced physical models

Examples:

  • Comparison of aerodynamic parameters for different geometrical and flow configurations.
  • Optimization of pressure loss in internal flow.
  • Flow analysis of rotating machines such as fans, compressors or turbines – axial or radial.
  • Loading of structures due to a weather conditions.
  • Heat transfer calculation during cooling or heating of components due to forced or natural convection.

L.K. Engineering s.r.o.

  • Videnska 55 639 00, Brno, Czech Republic
  • +420 543 215 681
  • +420 543 215 683
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