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The Altair Partner Alliance has expanded its noise, vibration and harshness capabilities with the addition of partner Cambridge Collaborative, whose software — SEAM — uses statistical energy analysis (SEA) to evaluate the dynamic response of complex structures at mid and high frequencies.

Originally developed to study structure-borne noise in submarines in 1980, SEAM has grown to be accepted as an analysis procedure by automobile manufacturers and suppliers, major shipyards, navy research establishments and aerospace companies.

It is used to predict interior noise and vibration in automobiles, aircraft and construction equipment cabs, as well as the radiated noise from ships and the vibro-acoustic environments for spacecraft.

Other applications include machinery and industrial noise, as well as building acoustics.

Software in detail

  • SEAM analyses a complex dynamic system by dividing it into a set of substructures and acoustic elements. These are then grouped into the appropriate modes and SEA subsystems, keeping the flow of energy between them proportional to the modal energies and coupling factors.
  • All coupling factors and power balances for each subsystem are calculated by SEAM, resulting in equations that are solved for the modal energy and response of each subsystem.
  • The software, using the SEA solver speed, is able to produce results to help answer many problems. It has the ability to create multiple acoustic radiation models with unique formulations specific to aerospace panels and fuselage sections.
  • SEAM is also capable of developing models with thousands of SEA subsystems to incorporate both predicted and measured stiffening and pressurisation effects into hybrid SEA models.
  • The software performs fast and automated model updates with parametric modelling using symbolic constants and algebraic equations.

Altair Engineering

Altair Engineering is a leading global product design, consulting and commercial software Company that allows businesses to synthesize and optimize designs processes and decisions for improved business performance. Altair provide services such as product engineering, industrial design, technical staffing, Hyper Works solutions, and analytics solutions by consistently delivering a competitive advantage to its clients across industry.

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 has more than 45 offices in 24 countries throughout North America, South America, Europe and Asia/Pacific.

With a 30-year track record for product design, advanced engineering software, on-demand computing technologies and enterprise analytics solutions, Altair consistently delivers a competitive advantage to more than 5,000 corporate clients representing the automotive, aerospace, government and defence, and consumer products verticals. Altair also has a growing client presence in the life sciences, financial services and energy markets.

Altair’s design suites impact product design from the earliest conceptual design stages through product performance optimization. It has resulted in products that exhibit minimum weight and outstanding performance in industry leading timescales. Altair has pioneered simulation-driven technologies to generate innovative design solutions for our clients:

HyperWorks is a simulation platform for rapid design exploration and decision-making. As the most comprehensive, open-architecture computer-aided engineering solutions in the industry, HyperWorks allow businesses to create superior, market-leading products efficiently and cost effectively.

solidThinking is an Altair wholly owned subsidiary that creates, develops and markets technology that helps the design community bring the most desirable products to market faster. Products include Inspire, to explore structurally efficient concepts, and Evolve for modeling and rendering.

PBS Works is a suite of on-demand, cloud computing technologies that allows enterprise clients to maximize their ROI on computing infrastructure assets. PBS Works is the most widely implemented workload management environment for grid-, cluster- and on-demand computing worldwide.

Altair ProductDesign is a global product development consultancy of more than 700 designers, engineers, scientists, and creative thinkers. This organization is best known for its leadership in simulation-driven design to help clients bring innovative, profitable products to market faster.

Altair’s patented on-demand software licensing system leads all software business models in providing both value and flexibility. Our centralized unit-based licensing model means multiple users can access our software anytime from anywhere. Software customers can run multiple applications across all of our technology suites simultaneously for a flat rate, rather than paying for each license in use.

Altair employees worldwide share a tremendous pride in the entrepreneurial spirit and corporate culture based on transparency, honesty, innovation, and integrity. This brings high value solutions for clients which integrate hardware, software, user experience and services.

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