Description
Gravitational wave detectors, such as the Einstein Telescope (ET), rely on optimized cryogenics suspension systems to enhance detection sensitivity. In this study, we address the optimization of crystalline silicon triangular blades within the ET's cryogenics suspension system. Our purpose is to reduce the natural frequency while maintaining surface tensile stress below 90 MPa, crucial for optimal performance. Leveraging simulation techniques in ANSYS, we systematically adjust critical parameters, including length, width, and thickness, to optimize blade performance. Through exploration of different design options, with applied forces of 50kg and 100kg, we evaluate their impact on vertical axis deformation and von Mises stress distribution on the blade surface. Additionally, we study the correlation between von Mises stress distribution and crystalline orientations, providing insights into structural behavior. Assembly considerations within the cryogenics suspension system are also addressed, recognizing the importance of design parameters and assembly processes. Furthermore, experimental determination of the breaking strength of wire electrical discharge machining (WEDM) silicon samples offers further insights into crystalline silicon axis behavior, contributing to the refinement of blade designs for optimal suspension system performance.
