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 undampened 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
Optimisation of shock mount type to minimize rest chock
Rest shock level in centre 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.