ESTECH Original Software
ESTECH has been developing various kinds of original software based on expertise of engineers and accumulated know-how over the years. Every software the company developed has been applied to the actual consulting project respectively.
If any needs to develop new software exist, please feel free to contact ESTECH.
The followings are introductions of these software along with examples which show how the software help out test and simulation analysis work of the clients.
Physical Test Assisting Software
Moment of inertia calculation of structure
The software calculates moment of inertia of structure by quite simple way of testing.
Test Modal Model Development
Create test modal models in order to apply the output from test modal analysis to FE analysis.
Simulation of translational and rotational motion assuming objective as a rigid body structure
The motion of an objective structure is analyzed by assuming it as a rigid body as well as calculating 6 directional rigid body motion at arbitrary point on the structure.
CAE Model development
Moment of inertia calculation of structure
The software calculates moment of inertia of structure by quite simple way of testing.
Test Modal Model Development
Create test modal models in order to apply the output from test modal analysis to FE analysis.
Analytical Modal Model Development
In order to solve a FE model efficiently, it is necessary to create analytical modal model and reduce its DOF, which is much simpler way than Super Element method.
Noise Absorbing and Insulating Panel Model development
The model simulates trim parts such as floor carpet, dashboard insulator, which reside both noise absorbing and insulating capabilities.
Elastic Vibration Model development for Control Analysis
When the control analysis by Simulink is conducted, the software assists to import elastic vibration model of objective structure which has reduced DOF.
Efficiency Improvement of Calculation
Streamlining FE model calculation by reduced model
Reduction of a part of large FE model by reducing its DOF makes streamlining of the calculation.
Principal mode extraction
Complex phenomena with a lot of natural modes can be simplified by extracting principal modes which highly contribute to response waveform.
Solvers
High speed engine elastic vibration analyzer under operating condition
An engine elastic vibration can be analyzed in a quite short period of time by coupling crankshaft and cylinder block in frequency domain, which is very unique and innovative technology developed by the company.
Modal model recovery
Response of all system of original structure by recovering modal model is calculated.
Frequency response analysis including frequency/amplitude dependencies
Frequency response of nonlinear component such as a hydraulic engine mount can be calculated, which includes both frequency and amplitude dependencies.
Calculation of inertia and elastic role axes of an engine
Calculation of inertia and elastic role axes of a target engine is indispensable to design the engine mounting system.
Analyzer
Principal Mode Analysis
Dominant modes for specific input are identified for studying high frequency phenomena and/or large size model with high modal density.
Simulation of translational and rotational motion assuming objective as a rigid body structure
The motion of an objective structure is analyzed by assuming it as a rigid body as well as calculating 6 directional rigid body motion at arbitrary point on the structure.。
Small elastic deformation analysis in a rigid body motion
The small deformation is calculated by subtracting rigid body deformation from absolute deformation of the structure.
Optimal and practical trans-path analysis (TPA)
There are various kinds of TPA methods in the testing field, selection of the optimal method is quite important to reach right solution avoiding wrong solution efficiently.
Postprocessor
Natural mode contribution display
Natural modes as well as panel contributions derived from MSC Nastran are displayed effectively.
Identification of unstable modes caused by self-induced vibration
Predict the generation mechanism of self-induced vibration caused by friction and obtain guidelines for avoiding self-induced vibration.
I-deas postprocessor for MSC Nastran response analysis
The postprocessor converts to I-deas universal file from MSC Nastran frequency and transient response output.
Splitting large size of op2 file in MSC Nastran
Splitting op2 file of natural frequency of large size model in MSC Nastran output makes post process easier.
Design Aid
Help to design an elastic mounting/suspension structure like engine mount system
Calculation of inertia and elastic role axes of a target engine provides assistance to design the engine mount system.
List of the Software
ESTECH.AxisDesign
Instantly calculate a location of rigid body inertia role axis, elastic role axis, role stiffness of rigid body, natural frequency and natural mode (kinetic energy distribution) by utilizing mass of rigid body, layout and coefficient of rigidity of elastic mount and direction cosine of input torque.
ESTECH.ff10
Create I-deas universal file from the output of MSC Nastran frequency and transient response analyses
ESTECH.[ I ]property
Calculate inertia properties such as mass, center of gravity and moment of inertia from frequency response functions of target structure by applying least-square method.
ESTECH.MNV
This software can easily generate dynamic load data for each order of interest required when performing vibration analysis of motors caused by magnetic force with MSC Nastran, by converting time-series data of the gap reaction force generated in the motor stator obtained by magnetic field analysis into excitation force bulk data in MSC Nastran format, which is necessary when performing motor vibration analysis due to magnetic force with MSC Nastran.
ESTECH.MODAL2FEM
Convert physical test or analytical modal parameters to equivalent I-deas and MSC Nastran models.
ESTECH.NAST+
Enhance functions of MSC Nastran substantially.
ESTECH.PathFinder
Integrated tool for TPA including the following functions such as dynamic spring stiffness approach, inverse matrix approach, operational TPA approach, furthermore, ESTECH original assembly TPA approach and multi-coherence contribution analysis capability.
ESTECH.PlotTool
Display the output of MSC Nastran contribution analysis.
ESTECH.PRIMESPEC
Calculate engine rigid body excitation forces working on a power plant from primary specification of the engine dominant moving parts and combustion pressure.
Furthermore, the above-mentioned excitation force is used to calculate the rigid body vibration of the power plant supported by the engine mounts.
ESTECH.PSISTOP
Calculate engine rigid body excitation force to power-plant and input torque to crank shaft at an engine stop and start timing.
ESTECH.PS-X
Typically calculate an elastic vibration of an automobile reciprocate engine under operating condition very rapidly, which is a quite unique and innovative FE simulation software.
ESTECH.RIDE
Calculate frequency response of system model with nonlinear connectors.
ESTECH.Rmotion
Calculate motion of arbitrary points on a structure which is considered as a rigid body from its motion data by applying least-square method.
ESTECH.rmRBM
Applying least-square method makes it possible to extracted only the response of elastic deformation from the analysis result of MSC Nastran SOL101(Static Analysis)/SOL103(Eigen Value Analysis)/SOL108 and 111(Frequency Response Analysis)/SOL109 and 112(Transient Response Analysis) by subtracting rigid deformation.
ESTECH.SimFlex
Import elastic body model into a Simulink control analysis model.
ESTECH.Squeal
MSC Nastran complex eigenvalue analysis generates eigenvalue plots on complex plane, mode contribution plots, eigenvalue shift plots as well as eigenvalue instability indexes.
ESTECH.ssop2
Facilitate manipulation of post processing tool by splitting op2 file of MSC Nastran real eigenvalue analysis result.