Engineering Service + ARMD Software

3D Presentation of Vibrations of a Compressor Shaft / (c) RBTS

  • Torsional Vibrations

  • Flexural Vibrations

  • Lateral Vibrations

  • Fluid-Film Bearings

  • Rolling Element Bearings



ROTORDYNAMIC SIMULATIONS (i.e. analysis of flexural and lateral vibrations including bearing influence) are another subject area as part of the engi­neering service. These CAE studies include the calcu­lation of critical speeds and acceptable operating conditions while consider­ing the shaft design and above all the charac­teristics of the ball, roller bearings, or the fluid-film bearings, respectively. The analysis also in­cludes the study of tor­sional vibra­tions as an option.

Starting with smaller studies, which can be realized in a short time, you can „upgrade“ the engi­neering service step by step even up to a complete study, design and configu­ration of complex fluid-film bearings (journal, conical, thrust, tilting-pad bearings).

Cooperation between Laschet Consulting and RBTSLaschet Consulting
is official cooperation partner of RBTS, Inc. (U.S.A.) ( We provide software and engineering support in close cooperation with RBTS – usually realized in efficient WebEx meetings.

Down­load (PDF) details of the coopera­tion between Laschet Consulting and RBTS.


Advanced Rotating Machinery Dynamics – Software ARMD V6.1

The simulation software “ARMD” designed by RBTS is a very powerful CAE tool which is distributed and supported in Germany and Europe by Laschet Consulting.

Non-binding LIVE presentations can be arranged individually supported by an online meeting (WebEx). There is also an option to download a “demonstration version” of ARMD for free – just to get a better “look & like” feeling.


The ARMD software packages/modules and software structure:

ARMD Software V6.1

ARMD Software Structure (Packages, Modules)Download (PDF): ARMD V6.0 – Description of the Software Package


Overview on the complete ARMD software package:

Rotordynamic Model Generation and Mode Animation

 Campbell Diagram 


Figures and screenshots provided with kind permission of RBTS.


Learn more on ARMD software packages on our special sites:

and also on RBTS web site:



International Rotordynamics Seminars … more than 15 Years

International Rotordynamic Seminars 2004-2015


We would like to inform you on the next International Rotordynamics Seminar & Short Course in Europe (Cologne, Germany). This seminar is an offer in close co­opera­tion with our partner RBTS  – and it is unique in Europe and well accept­ed by many inter­national atten­dees for more than 15 years.


Please visit our special seminar site for detailed infor­mation on the next semi­nar in Cologne including online registrationInformation on our next INTERNATIONAL ROTORDYNAMICS SEMINAR


ARMD Training Courses – Online Training via WebEx

In close cooperation with our partner RBTS we offer an Online ARMD Training Course (via WebEx) any time (language: ENGLISH; duration: usually 8 hours in total). Such a course is offered dedi­cated to one of the ARMD packages the customer ordered (ROTLAT, TORSION, BEARINGS). The course is usually structured in two parts on two sub­sequent days directly pre­sented by RBTS (U.S.A.):

  1. Basic Training covering the basic technologies concerning dynamics in rotating machinery
    Duration: 4 hours concerning one of the ARMD packages ROTLAT, TORSION, BEARINGS
  2. Advanced Training referring to the software handling in detail; presentation of various general applications and case studies (Note: This is NOT a project related customer training.)
    Duration: 4 hours concerning the ARMD software handling (current release) and presenting typical (general) applications and selected case studies.

Due to the time-zone shift such a course can only start at 08:00 a.m. or 09:00 a.m. US time (at the earliest); i.e. for central Europe: training start not earlier than 14:00 or 15:00 (CET) in the afternoon.

Depending on customer demands, such a training course can be structured individually according to your demands. Please contact us.

Independent of a software training course we also offer a custom-tailored engineering service concerning your current project. Please send us your inquiry (submission of your inquiry).


Further Information on Special Sites

Please visit our special sites for more detailed information:

Torsional Vibrations in Drive Systems

Analysis and simulation of torsional vibrations in drive systems (drivelines, powertrains) of rotating machinery, vehicles, ships. Learn more …

Virtual Engineering, Development, Simulation

The virtual development process requires suitable R&D software tools, simulation environment, measurements, field tests, experiences. Learn more …

International Engineering Seminars & Short Courses

International engineering seminars in close cooperation with RBTS, Inc. More information available: Detailed Seminar Program 2021 & Online Registration …


Further Information as Downloads

Further information are also summed up in the following documents (PDF):