DELTA JS, your partner for rotor dynamics

Welcome to the website of DELTA JS. Customers in the whole world trust our proven and innovative products and services in the field of rotor dynamics.

MADYN 2000 ®, the leading and comprehensive software for the simulation of rotor vibrations
Engineering (specification and verification of designs, trouble shooting)
Training for the use of our software, about design rules and practical vibration phenomena

Seminars

The next standard Online Rotordynamic Seminar including an additional day for the demonstration of practical rotordynamic analyses with MADYN 2000 will take place from April 9^th to 11^th 2025. A registration form with the price and a description of the content of the last seminar is available here.

The next standard Online Magnetic Bearing Seminar will take place from June 26^th to 27^th 2025. A registration form with the price and a description of the content of the last seminar is available here.

The next standard Online Fluid Film Bearing Seminar will take place from June 24^th to 25^th 2025. A registration form with the price and a description of the content of the last seminar is available here.

Rotordynamic Software MADYN 2000

Version 4.5 is distributed. Highlights of the latest versions are the hot spot stability analysis to assess the sensitivity of hot spots (e.g. in fluid bearings → Morton effect), non-linear rolling element bearings (clearance effects, non-linear Hertz'ian pressure), new harmonic response analyses (bent shafts, coupling offsets, response to integer and non-integer harmonics, balancing), analysis of seal coefficients with a CFD solver, further simplifications of the process of analyses with fluid film bearings and improvements of the robustness of complex models with many connections.

Version 4.6 with Axial Fluid Film Bearings and Honeycomb Seals has been released.

Decaying vibration