PCAMI-1000 is an Airborne ruggedized Instrumentation System that handles excitation, attenuation, signal conditioning, data, embedded video and audio acquisition, encoding, operating numerous buses such as MIL 1553 and Arinc, and onboard data recording and data transmission with chassis of varied slot capacities such as 3, 6, 9 and 13 slots. Our client is a Government of India-approved aerospace and defense R&D unit. We collaborated with the client from the initial stages of the design process. Our domain expertise leveraged with Finite Element Analysis (FEA) technology has accelerated our clients Innovation process. We performed modal analysis, Vibration, Sine sweep, Random vibration analysis, Shock analysis, and Acceleration analysis per military standards (MIL-Std 810H) using Finite Element Analysis (FEA) software. Our meticulous engineering practices yielded reliable analysis results, which enabled our client to explore more design options and make well-informed decisions at the appropriate stages in the product development cycle.
The PCAMI-1000 Enclosure model is meshed with higher order Tet elements & Hexahedral elements. The FE model contains 1358886 nodes &788598 elements. Appropriate contacts are defined between all the parts in the assembly.
Modal Analysis is performed on the PCAMI-1000 Enclosure for the frequency range: 0–2000 Hz and found 72 frequencies in the range. Mode shape plots are presented for the first 6 modes and dominant frequencies in the X, Y, and Z directions.
Acceleration analysis has been performed for a 15g load in the x, y, and z directions. The deformation and stress plots corresponding to this analysis are provided. The stresses experienced by all components within the assembly, including the bottom panel, power supply panels, and side panels, remain well within the permissible limits for the specified loading conditions.
Random vibration analysis is conducted in the x, y, and z axes according to the specified loading profile. The results from the finite element method (FEM) analysis indicate that the stresses encountered by all components of the assembly, such as the bottom panel, power supply panels, and side panels, are consistently within acceptable limits.
Finite Element Method (FEM) analysis has been conducted on the PCAMI-1000 Airborne ruggedized Instrumentation System, taking into account acceleration and random vibration loads in the x, y, and z axes. The results of the FEM analysis indicate that the stresses encountered by all components of the assembly, such as the bottom panel, power supply panels, and side panels, are comfortably within the allowable limits for the defined loading conditions.
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