ShaftDesigner Modules

 

Core software package (Modeler core)

Article no. SD-CP01

Modeler

Required for all other modules. For the Torsional Vibration module is required optionally. Provides a 3D environment for simple and rapid creating detailed shafting design model. The model may consist of several shaftlines, engine crankshafts, gearbox, fixed and controllable propellers, stern tubes, brackets, different types of flanges and bearings. This model is the source for all kinds of calculations. Stores your models in the Repository for further usage.

Key words: 3D Modeler; Unit Manager (Metric/Imperial); Model Defaults; Materials and Media Selector; Object Property Inspector; Project Manager/Browser; Repository/Library;  History/Undo Window; Export HTML, XML, Word, Pdf

Shaft Alignment

Article no. SD-SA01

Alignment

Provides all required calculations concerning marine propulsion shaft alignment and bearing loads. Considers bending in both vertical and horizontal planes, a detailed bearing model with irregular bush shape etc. Implements a full cycle of the shaft alignment procedure: determines current bearing offsets after measuring with reverse calculation, finds best bearing offsets to apply them onboard, checks it with Jack-up test, SAG&GAP, Strain gauges. Additional features: bush contact pressure field, bearing hydrodynamic lubrication, propeller loads, gear tooth loads, hull deflections estimation, technological tolerances.

Key words: Direct Calculations; Acceptance Criteria Manager; Offset Explorer/Optimizer; Jack Load Graph; Gear Tooth Force and Moment; Geometric Alignment; Geometric Alignment; Catenary Alignment; Bush Contact Pressure; Hydrodynamic Lubrication; Hydrodynamic Propeller Loads; Hull Deflections; Gearbox Acceptance Criteria Check; Propeller Loads Estimation; Aft Most Bearing Lubrication

Shaft Alignment Reverse Calculations with strain gauges 

Article no. SD-SA02

strain gauge shaftline

Requires SD-SA01

Calculation of vertical and horizontal bearing offsets based on measured bearing loads, SAG&GAP and shaft bending parameters. Calculation of bearing adjustment parameters on board during shaft alignment procedure using the strain gauges technique.

Basic Whirling Vibration

Article no. SD-WV01

 

Basic Whirling Vibration module implements a conventional approach to whirling vibration calculation. The module calculates whirling vibration undamped natural frequencies, mode shapes and critical speeds, builds Campbell diagram. For bearings, isotropic model is used, i.e. bearing stiffness does not depend on direction, and on the vibration frequency. Bearings are not damped. Whirling vibration parameters are not coupled with alignment.

Key words: Free Whirling Vibration; Free Bending Vibration; Resonance Table; Forward/Backward Whirling; Natural Frequencies; Mode Shapes; Campbell Diagram

Advanced Whirling Vibration

Article no. SD-WV02

Whirling

 

Takes into account anisotropic bearing model which has direction and frequency dependent stiffness and damping characteristics. Calculates free vibration’s damped natural frequencies, mode shapes, critical and resonance speeds, Campbell diagram. Harmonic response analysis provides all parameters at any section, 3D animation of ODS and indicates whether the critical speeds result in harmful vibrations. Whirling vibration depends on the alignment parameters and bearing operational conditions providing a more accurate prediction of shafting behaviour.

Key words: Damped Natural Frequencies; Damped Mode Shapes; Damped Campbell Diagrams; Forced Whirling Vibration; Shaft Section Whirling Orbits; Dynamic Bearing Loads; Time Waveforms; 3D Animation of Results

Axial Vibration

Article no. SD-AV01

Axial

The free axial vibration calculation shows an overview of the various critical speeds with their corresponding mode shapes. Harmonic response analysis shows actual shaft displacement and thrust bearing loads in relation to the running speed of the installation. Different options are available to set excitation, frequency dependent stiffness and damping parameters for all equipment.

Key words: Free Axial Vibration; Forced Axial Vibration; Resonance Table; Vibration Param. Ref. to RPM

Torsional Vibration

Article no. SD-TV01

Torsional

Generates calculation scheme out of shaft dimensions. Calculates angular deformations between components, vibratory torque and stresses in shaft elements, gear hammering in geared connections, power loss in flexible elements and dampers, normal and misfiring diesel engines conditions. Advanced ice impact and short circuit features provide transient calculations in time domain. Supports the latest Classification Societies requirements.

Key words: Free Torsional Vibration; Campbell Diagram; Resonance Table; Forced Torsional Vibration; Mass-Elastic System Modeler; Repository/Library; Acceptance Criteria Manager; Malfunction/Misfiring Options; Worst Misfiring Case Analysis; Harmonic Coefficients; Cascade Diagram; Vibration Param. Ref. to RPM; Time Waveforms

Transient Torsional Vibration

Article no. SD-TV02

Requires Torsional Vibration Module

Key words: Ice Impact Vibration; Ice Class Database/Selector; Worst Load Case Analysis; Worst Impact Phase Analysis; Response Diagrams; E-Motor Short Circuit

 

DIN-743 Load Capacity

Article no. SD-D743

DIN743

Key words: Verify Shaft Load Capacity; Safety Factor against Fatigue; Safety Factor against Yielding