As the maximum speed of bullet trains continues to increase, overheating and thermal deformation/stress on brake systems are going to be critical for emergency stops. Precise prediction of the maximum temperature is needed for the design of brake systems, especially  for both discs and linings, where how to handle the high speed spinning of discs is the point of the heat/structure coupled analyses. Abaqus provides couple of potential methods but each one had critical shortcomings. The authors investigated the feasibility of a new method; Abaqus/Explicit using ‘rigid bodies with temperature degrees of freedom’ for fully coupled thermal analysis.

One key aspect for the design of fast and flexible steam turbine operation is thermal stresses arising during transient operation. If the stresses exceed the fatigue limits of the material, the lifetime of the steam turbine is shortened. Detailed finite element analysis is applied during design phase to assess the effect of transient temperature and stress profiles on the complex geometries. A significant amount of design effort is invested to determine the optimal process parameters for start-up (e.g. steam temperatures, run-up and loading gradients), in order to achieve the fastest possible starts without exceeding allowable material stress limits.

Electrically operated high temperature furnaces and reactors are used in many industrial manufacturing processes such as sintering or single crystal growth in order to allow for the required process conditions. In view of their outstanding characteristics refractory metals are ideally suited as materials for the resistive heating elements. Nevertheless, significant and lifetime-limiting irreversible deformations of these elements can be frequently observed which are assumed to be caused by a combination of temperature expansion, electromagnetic forces, and high temperature creep effects. In order to study this undesired behavior, a multi-physics model of a particular three-phase AC heating element of a sintering furnace is formulated and implemented within Abaqus.

Identication of fatigue cracks in turbo-machinery components is a vital but costly effort. This work focuses on nonlinearities in the response behavior resulting from the opening and closing of cracks that results in super-harmonic resonances due to harmonic excitations. Experimental results for a cracked cantilever beam are presented as well as the results from numerical simulations of an integrally bladed compressor disk FE model. Identication of sensitive vibration features is expected to contribute to the development of automated crack detection techniques for aircraft engine disks.

Today manufacturing companies are more and more often characterized by a growing product
and processes complexity. Projects needs the participation of a pool of companies that have to

Hello,

We would like to offer you step by step Video Tutorials of IOSO Optimization coupled with Concepts NREC and NUMECA software:

1) http://vimeo.com/16668245 by this we show how easily you can use direct integration capabilities between IOSO and Concepts NREC software to solve optimization tasks in turbomachinery

2) http://vimeo.com/16805244 here we consider IOSO – NUMECA coupled solution on the example of an optimization case study for turbomachinery

SoftInWay invites engineers to take part in free 1-hour webinar "Design of High Efficiency Steam Turbine in AxSTREAM" that will take place on Thursday, October 21, 2010, at 10 a.m. and 4 p.m. EST.

The webinar demonstrates the steps of steam turbine design on 1D/2D level, with particular focus on influence of different factors on turbine efficiency at the following stages of design:

- 1D Preliminary design and optimization: number of stages, geometrical and structural constraint

- 2D Streamline analysis and optimization: twist, lean and structural and loading constraint

- Final step of design: 3D blade design and validation in 3D FEA and 3D CFD will be presented at the conclusion

THE JOB POSITION HAS BEEN FILLED. PLEASE DO NOT SEND APPLICATION.

Cenaero (http://www.cenaero.be/ ) and ULB-BATir (Université Libre de Bruxelles, Belgium, http://www.ulb.ac.be/smc/) jointly propose a PhD position entitled: "Reduced order modeling and surrogate-based optimization for turbomachinery blade design" (4-year contract).

SoftInWay Inc. continues the online training series on turbomachinery design and announces the schedule for the second part of 2010:

• Axial Turbine: Jul 12-21; Sept 6-16; Oct 25 - Nov 4; Dec 7-16.
• Radial Turbine: Jul 7-14; Sept 7-15; Oct 26 - Nov 3.
• Axial Compressor: Jul 21-30; Sept 27 - Oct 7; Nov 29 - Dec 9.
• Radial Compressor: Jul 19-29; Sept 28 - Oct 6; Nov 23 - Dec 2.

The program consists of 12-16 hours of study (lectures, exercises and consultations with instructors) and ongoing home assignments to reinforce the materials learned. The scope includes the whole process of turbomachinery flow path development, from preliminary design to 3D blade design.

On May 27, 2010, at 10 a.m. and 4 p.m. EST SoftInWay will hold free webinar "AxSTREAM 3.0: Design of Multispool Axial Compressor. From Specification to 3D Blade Design".

In the course of the 1-hour online presentation, the SoftInWay team will showcase the new features of AxSTREAM 3.0 for multispool compressors, namely:

1.  Ability to assess multiple criteria to choose the optimal flow path design.
2.  Flow path geometry adjustment according to designer's goals (using manual and S1 adjustment and spline).
3.  Simulation of flow path to produce the required design including ducts, heat exchanger, pressure valves etc.
4.  1D/2D calculation and optimization of flow path shape.

On April 15, 2010, at 10 a.m. and 4 p.m. EST SoftInWay will host free webinar "AxSTREAM Generation 3: New Features for Radial Turbomachines" that will showcase the new features of the AXSTREAM software suite for radial turbines and centrifugal compressors. The presentation is followed by an open forum where SoftInWay's experts will answer the attendees' questions.

The webinar's contents and screenshots are available at http://www.softinway.com/education/webinar.asp

Dear Colleagues,

IOSO optimization technology has been used in turbomachinery for more than 20 years and applied on real-life objects like aircraft and power engines. Let me offer you some more examples.

Dear Colleagues.

Let us introduce you some new application examples of IOSO optimization technology employment in turbomachinery.

First example is the application of IOSO software connected with Concepts NREC software aimed at improving efficiency of 10-stages compressor, you can download it from here