Engineering

For custom designed isolators necessary calculations can include:

- Mechanical strength analysis by Finite Element Methods (FEM).
- Natural frequencies analysis & dynamic response analysis by Finite Element Methods (FEM).
- Load distribution calculations.
- Fatigue calculations.
- Calculation of fastening bolts or welds.
- Static & dynamic laboratory tests
- Preparation of 3D CAD drawings
- Analysis for attenuation, transmission and radiation of structure borne noise using Statistical Energy Analysis (SEA)

For suspension of hot pipes as for instance exhaust pipes typical technical proposal can include:

- Dimensioning and positioning of suitable support (hangers/fix points/pipe clamps)
- Calculation of thermal expansion
- Dimensioning and optimization of expansion joints (position and pre-tension)
- CAD-drawings with products at proposed positions and principal sketches

For exhaust silencer dimensioning typical calculations can include:

- Calculation of undamped exhaust noise spectra (if not available)
- Calculation of generated exhaust volume (if not available)
- Choice and calculation of suitable silencers to meet required noise reduction
- Calculation of distance attenuation based on free field
- Calculation of backpressure for the complete pipe system

For elastic suspensions with shock demands we can perform chock calculations:

- Shock calculations with six different pulse types: sine, half-sine, quadrilateral, sawtooth, reversed sawtooth and pulse train
- Optimization of shock mount type to minimize rest chock
- Rest shock level in center of gravity, each suspension mount or other critical point
- Drop calculations

For calculation of vibration isolation of track systems we provide:

- Insertion loss calculations for rail pads, under sleeper mats, ballast mats and slab track
- Necessary input data: boogie length, boogie load, speed, type of rail, type of rail fastener, type of sleeper, sleeper distance, height of ballast or slab, mechanical properties of underlaying soil or rock
- Lateral stability calculation
- Calculation of electrical resistance to stray currents (for embedded track)
- Detailed installation drawings, method statements, test certificates etc.
- Installation on site if required