PCB System Dynamic Stability Utilizing Digital Prototyping

摘要

Integration of electronics into hydraulic systems is always a challenge in terms of its robustness to withstand the vibration and shock from the environment. Printed Circuit Boards (PCB's), components on the PCB, and an enclosure are the building blocks for electronic systems. Commonly observed failures of electronic components are solder joints, component lead wires, PCB traces, and capscrews. The dynamic response of a PCB assembly is dependent upon major components on the PCB, the distribution of electronic components on the PCB, the influence of the enclosure, and the integration of the electronic system into the final application. A Finite Element Analysis (FEA) based (digital prototyping) modeling and evaluation process has been developed to identify dynamic instabilities of the PCB, the major components on the PCB, and the enclosure of the PCB, early in the design phase in order to minimize risks later in the development and validation phases. The present study investigates options for supporting the PCB, optimal locations of electronic components on the PCB, PCB integration schemes with the enclosure, and PCB system interface with the application.