Career

Through close cooperation with our customers from industry and research, new and advanced tasks and requirements constantly arise.

The highly dynamic development process in the vehicle environment places above-average expectations on the performance and flexibility of our employees.

If you are interested in working in one of our development teams, have the qualities mentioned above, and have a degree in engineering with solid FEM knowledge, please send us your complete application documents.

We have already given many students the opportunity to apply their knowledge of FEM on highly interesting topics in the form of a Diploma- , Bachelor or Master's thesis to deepen.

We take the word supervision extremely seriously and thus enable the student to gain an in-depth insight into the work of a fracture engineer.

If you are interested, please contact us and choose one of our suggested topics.

Job offer

As a partner to industry and research, we offer engineering services in the field of technical calculation/simulation (FEM) as well as component testing. We see our strength in the close connection between CAE and testing. For this, we are looking for motivated, creative, and team-oriented employees.

You can expect a diverse, interesting and, despite its rather theoretical reputation, practice-oriented field of work in which you can apply and specifically expand your knowledge.

Qualifications:
  • Graduate engineer f/m (FH/TU), Master/Bachelor f/m
(Completed degree in automotive engineering, mechanical engineering or a comparable technical course of study)
  • Professional experience or graduate
  • Knowledge in the field of FEM structural analysis
  • Independent working style and creativity

Please send your complete application documents to: info@makross.de

In addition, an affordable apartment is offered for a few weeks at the beginning of the trial period!

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1D-Shaker

3D Shaker / 4D Oscillating Table

  • 3 cylinders with 15 kN (1 Moog 761 63 l servo valve each
  • 3 flexible vibration tables for different tasks
  • Seismic mass 15 t
  • Air suspension with additional volume (1.2 Hz natural frequency)

Further facilities


  • 3 cylinders with 15 kN (each with 1 Moog 761 63 l servo valve)
  • 3 flexible vibration tables for different tasks
  • Seismic mass 15 t
  • Air suspension with additional volume (1.2 Hz natural frequency)

Dummy simulations are now an integral part of most crash load cases. If a crash scenario requires dummy load values in addition to the vehicle parameters, we perform the complete analysis with airbag systems. When designing components such as seats, we often use the freely available rigid-body dummies. These allow us to accurately reproduce the load introduction into the structure.

As part of our diploma theses and pre-development projects, we have developed a calculation method for our customers that can simulate the entire slamming process of a door or flap, including the locking mechanism and seal. The results from the calculation can answer most questions. Firstly, collisions with other body parts and gap situations are discussed. Secondly, the dynamic decay behavior and the shape of the force-time curve of the lock hook force can provide insights into the expected closing noise. The transient force curves can be used in the design of locks, hinges, and stop buffers. A further goal of this calculation method was to provide information about the component strength of the supporting structure and the connected components. For this purpose, we worked with LMS to develop a method for further processing the transient element stresses in the LMS FALANCS fatigue life program. This process can be used to predict the number of slams for a specific closing speed until failure begins. The integration of nonlinear material behavior with strain rate dependence also makes it possible to simulate abuse load cases. The three programs PAM-CRASH, LS-DYNA, and ABAQUS/explicit are suitable for simulating door or hatch slam. References: Audi D4/T99, BMW 7-Series (F01), Rolls Royce (RR4), VW Golf/Passat/Skoda

If nonlinearities arise during a kinematic analysis that are implicitly dynamically non-convergible, a solution can be found with an explicit rigid-body simulation. This occurs especially when parts of the kinematics are defined by guide rails with pronounced contact regions, or when a fabric simulation for a soft top is to be integrated.

Static load cases with very large nonlinearities can often only be calculated implicitly with significant simplifications. In certain cases, it is therefore advisable to forego precision on the calculation type page and instead represent the boundary conditions more realistically. Examples of this include a quasi-static roof compression test or an ECE R14 with chords and body blocks. In all calculations, the calculation time is reduced to such an extent that the influence of mass inertia can no longer be detected.

Through extensive development work, we have succeeded in establishing a calculation method that reflects the fabric behavior during the opening and closing of a roof system. This makes it possible to precisely predict fabric creases and visualize overstretching. Potential chafing points and areas of fabric trapped in the storage area are located. Even before the first prototypes exist, it is possible to optimize the fabric storage through targeted pleat design.