Is there anyone who can share a 3D CAD model of a rod fastening rotor ?

More Nils Wagner's questions See All

What manufacturing restrictions still exist today for laminates?

Many publications use discrete angles and layer thickness for laminates. Is that outdated?

31 December 2018 546 3 View

Where can I find a direct comparison of PML and ABCs like Enquist Majda applied to acoustic benchmarks problems based on finite element models?

Many applications in numerical acoustics occur in exterior domains. The advantage of benchmark problems is a closed form solution (e.g. circumferentially harmonic radiation from an infinite...

08 September 2018 9,301 4 View

What can be defined with the Ansys command RLBLOCK ?

RLBLOCK, 11, 11, 6, 7 (2i8,6g16.9) (7g16.9) 1 6 0.100000000E-02 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2 6...

02 March 2018 9,571 1 View

History of inertia relief analysis ?

I am looking for the first publication on inertia relief analysis.

09 October 2017 4,490 0 View

What is the major reason to use beam elements instead of shell elements for the stiffeners in stiffened panels?

Finite element models of stiffened panels currently consists of shell elements for the panel and beam elements for the stiffeners. For what reason ?

03 April 2016 9,269 13 View

Who can share a finite element model of a composite shell structure ?

I am looking for an Abaqus input file (*.inp) that contains the following keywords *Shell Section, Composite *Static or *Frequency

11 December 2015 8,571 0 View

Can anyone shed some light on the definion of CPYRA elements in NX-NASTRAN ?

It is not clear to me how CPYRA elements with a varying number of midnodes are handled.

02 March 2015 5,970 3 View

Can anyone share a NASTRAN op2 file that contains an OUGV2 displacement output table in SORT2 ?

A NASTRAN OUGV2 displacement table is needed in SORT2 format.

02 March 2015 9,391 3 View

Can anyone provide coordinate measurement machine data of a blisk?

I am interested in the format of CMM data.

31 December 2014 1,895 2 View

How can I find a symmetric positive definite matrix by a rank one modification of an indefinite matrix ?

Let A be a real symmetric indefinite matrix. A is perturbed by a rank-one modification, i.e. B = A + \alpha \diag{c_i}. How can I compute the scalar \alpha such that B is real symmetric positive...

08 September 2014 8,280 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

Lothar Gaul

Dear Nils, my coworker Marcel Clappier has just modelled a 3-D laminated rotor.Our dominant interest was inpredicting the damping behaviour by microslip in the Interfaces.

The result has been published at the ISVR Conference of Malcolm Crocker at Athens recently. Best regards. Lothar Gaul

Oguzhan Yalcin

Dear Nils,

My suggestion to take a look at the website below. I hope that you can find what you want there.

Best Regards...

https://grabcad.com/library?page=1&per_page=100&time=all_time&sort=recent&query=rotor

Nils Wagner

Dear Oguzhan,

Thank you for your answer. I am aware of Grabcad. However, I am looking for a model similar to the one used by Gao et. al. (i.e. Fig. 6) in

Effects of bending moments and pretightening forces on on the flexural stiffness of contact interfaces in rod-fastened rotors, Journal of Engineering for Gas Turbines and Power, Vol. 134 (2012).

Best regards,

Nils