Although engineers have started to use simulation software to test brake squeal, its complex nature usually requires more than one different software and discipline. This makes it difficult to transfer data from one software to another and to work in different environments. To address complex brake squeal in one environment, multidisciplinary solutions (MD) can be used. When MD Nastran and MD Adams are used together, they provide a complete integrated solution to brake squeal simulation with their unique capabilities that span linear and nonlinear statics, linear and nonlinear dynamics, modal and frequency analysis, thermal analysis, multidisciplinary optimization, and comprehensive system motion simulation. With the help of these MD solutions, engineers are able to achieve more accurate results in less time and with less effort.
Brake system finite element model
Multidisciplinary optimization offers a powerful design tool for break squeal studies. The MD optimization feature allows engineers to develop designs which avoid problematic brake squeal frequencies. For example, the material characteristics of the brake system parts can be treated as design variables in MD optimization to overcome a specific brake squeal mode, thereby pushing the brake squeal phenomenon to a higher frequency. Multidisciplinary solutions provide a complete brake squeal simulation environment with vehicle motion analysis for brake system loading, nonlinear structural analysis for pad/rotor frictional contact, complex eigenvalue analysis for mode shapes and frequencies, and system level design optimization to arrive at desired brake squeal design conditions.
Brake system simulation
As a result, multidisciplinary solutions provide an integrated platform for end-to-end brake squeal simulation. With MD solutions, engineers can simulate the brake squeal performance of a complete braking system including motion, structural, non-linear, thermal and vibration effects on the system. The traditionally separate analyses required for each of thse disciplines are integrated under a common data model and common solver framework, avoiding the need for data transfer and transltation between separate analyses and different solvers. With the power of multidisciplinary solutions, manufacturers can reduce the need for costly physical testing while improving brake squeal with virtual testing.
To learn more about how multidisciplinary solutions helps brake squeal, read our white paper .
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