Learn more about shaker testing with our recorded webinar and discover more about the following topics:
- A brief history of LDS shakers
- An introduction to shaker testing including theory
- Which testing equipment and vibration systems are required?
- Information on typical shaker testing applications
- How can I add value to shaker testing?
Has an Bachelor of Science with Honours in Engineering Design. He joined Brüel & Kjær in 2016 (based in Royston, UK) and is our Product Manager for Shakers & Amplifiers and Shaker Systems.
- Material preference is aluminium or magnesium alloys for strength to mass ratio and good damping properties
- Low mass, high stiffness and a minimum thickness of 20 mm
- Specified flatness tolerance and a good balance/C of G
- All interface hole patterns should incorporate counterbored holes, which allow for a flat washer and cap head screw/bolt
- Steel inserts should be used for interface to Jig
- 100 mm minimum hole spacing, in a square pattern where possible and consider how to control and where to position the accelerometers using 10/32 threaded holes
The actual control is still completed by the accelerometer measurement feedback by calculating the acceleration amplitude equivalent to displacement at each frequency. The transition frequency can be calculated by comparing the increase in acceleration with the displacement constant:
- Random-on-Random: narrow bands of noise sitting on a broader band of random energy
- Sine-on-Random: single tracked pure sine frequencies sitting on a broader band of random energy
Suscríbase a nuestro boletín informativo y recibirá las últimas noticias de B&K sobre sonido y vibración
Las últimas noticias de Brüel & Kjær le llegarán a su bandeja de entrada
Lanzamientos de nuevos productos, descuentos y ofertas especiales
Artículos, vídeos y guías sobre sonido y vibración