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Altair ProductDesign, thyssenkrupp Collaborate on Development of Innovative Rope-Less Elevator System

Altair ProductDesign has partnered with thyssenkrupp to develop a revolutionary rope-less elevator system. The new elevator system, named 'MULTI', does not require any roof mounted cables which enables it to travel with no limits in height like conventional elevators.

Passengers therefore have no need to swap elevators mid journey. In addition, this weight optimized new design, which uses electro-magnetic drives to move the elevator between floors, is capable of transporting the elevator horizontally as well as vertically.

The thyssenkrupp concept utilized a support structure which attaches to the back and underside of a metallic cabin. To investigate the potential to save weight from the design, Altair ProductDesign developed a multi-stage approach that aimed to reduce the volume of material being used. This process included a series of optimization studies with OptiStruct™, the design optimization solution within Altair's HyperWorks suite of simulation tools, to find a new, material efficient supporting structure. The new support structure that Altair ProductDesign's engineers suggested was 42% under thyssenkrupp target weight.

The final stage of the project involved investigating the potential of using carbon fiber materials for the walls of the elevator's cabin and finding the ideal material thickness, fiber ply shapes and lay-up orientation of each layer. By using carbon fiber for the elevator's walls, the cabin's weight was reduced to 56% below the target weight.

"Thanks to the weight saving achieved during this project, we have additional confidence in the electro-magnetic concept as a practical alternative to the traditional cable system," said Dr. Thomas Kuczera, Head of Mechanical Development MULTI, thyssenkrupp Elevator. "Altair ProductDesign was very responsive throughout the project and quickly understood our unique challenges. The new, organic looking design, would not have been possible without optimization studies conducted by the team."

"We have been applying our optimization technologies and processes to the automotive and aerospace industries for over 20 years but we're always excited to see how it can impact other industries where product weight is a key design consideration," said Markus Haller, Technical VP at Altair Germany. "The MULTI system is bringing real innovation to an industry that is having to rapidly adapt to technology advances enabling mega-structures. I'm very proud of Altair's role in making this concept a reality."

The 'MULTI' elevator system has now entered the prototyping phase with thyssenkrupp Elevator demonstrating a working scale model of the system at its Innovation Center in Gijon, Spain.

About thyssenkrupp Elevator

thyssenkrupp Elevator brings together the Group's global activities in passenger transportation systems. With sales of 7.2 billion euros in fiscal 2014/2015 and customers in 150 countries, thyssenkrupp Elevator built its position as one of the world's leading elevator companies from scratch in a mere 40 years' time applying thyssenkrupp unique engineering capabilities. With more than 50,000 highly skilled employees, the company offers smart and innovative products and services designed to meet customers' individual requirements. The portfolio includes passenger and freight elevators, escalators and moving walks, passenger boarding bridges, stair and platform lifts as well as tailored service solutions for all products. Over 900 locations around the world provide an extensive sales and service network to guarantee closeness to customers.

About Altair

Altair is focused on the development and broad application of simulation technology to synthesize and optimize designs, processes and decisions for improved business performance. Privately held with more than 2,000 employees, Altair is headquartered in Troy, Michigan, USA and operates more than 45 offices throughout 24 countries. Today, Altair serves more than 5,000 corporate clients across broad industry segments. To learn more, please visit

About Altair ProductDesign

Altair ProductDesign is a global, multi-disciplinary product development consultancy of more than 800 designers, engineers, scientists, and creative thinkers. As a wholly owned subsidiary of Altair Engineering Inc., the organization is best known for its market leadership in combining engineering expertise with computer aided engineering (CAE) technology to deliver innovation and automate processes. Altair ProductDesign utilizes proprietary simulation and optimization technologies (such as Altair HyperWorks) to help clients bring innovative, profitable products to market on a tighter, more efficient time-scale. To learn more, please visit

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