Availability Simulation Software
Availability Simulation Software
The Mantua Group delivers expert AvSim implementation, model build and validation services using Isograph Availability Workbench — running fast Monte Carlo simulation of complex repairable systems to predict lifetime cost, optimise spares policies and quantify the financial outcome of maintenance decisions before they reach the field.
- Fault Tree & RBD model building
- Fast Monte Carlo simulation
- Weibull failure data analysis
- Multi-product capacity simulation
- Unlimited hierarchical levels
- Spares optimisation modelling
- Opportunistic maintenance rules
- Project lifetime cost comparison
Integrated since 2009
Implementation
Software Deployed
Professionals on staff
Why Choose AvSim
AvSim within Isograph Availability Workbench is the recognised industry standard for Monte Carlo availability simulation of complex repairable systems. TMG provides end-to-end expertise to build, validate and extract full value from the platform.
Lifetime Cost Prediction
Predict the lifetime cost of failures, labour, equipment and spares. Reduce costs by modelling alternative maintenance strategies, system operation policies and spares holdings — quantifying the financial outcome of each scenario before committing capital.
Fault Tree & RBD Modelling
Build availability models rapidly using either Fault Trees or Reliability Block Diagrams. No limit on hierarchical levels — model whole plants from corporate level down to individual components, with switching delays, buffering and phase-dependent reconfiguration.
Fast Monte Carlo Simulation
AvSim runs thousands of simulation lifetimes through complex system models in minutes. Fast convergence to stable availability, downtime cost and spares-demand metrics. TMG configures simulation parameters for both throughput speed and statistical confidence.
SAP & Maximo Integration
AvSim’s built-in SAP and Maximo Portals download CMMS failure and repair data directly into Weibull analysis, then feed the fitted distributions into the simulation. TMG has integrated AWB with over 40 SAP enterprise systems since 2009.
Spares Stock Optimisation
Model spare-part dependencies and optimise stock levels to balance carrying cost against availability impact. Identify which spares actually drive plant downtime and which can be safely reduced — quantifying the holding-cost saving each policy change delivers.
Training & Mentoring
TMG delivers AvSim and AWB training tailored to your team’s experience — from foundational availability theory through to advanced multi-product capacity simulation, opportunistic maintenance rules and SAP integration. Public and onsite programs available across Australia and the United States.
How The Mantua Group Works With You
We don’t apply a one-size-fits-all approach. Whether you need hands-on simulation delivery, independent model audit, or your team trained to self-sufficient capability — we match our engagement to where you are on your reliability journey.
We Do — You Learn
For organisations new to availability simulation, TMG can lead the full AvSim implementation: system architecture definition, Fault Tree or RBD construction, failure distribution fitting, maintenance rule configuration and Monte Carlo validation. Your team participates throughout to build capability organically.
We Do Together
Our most common engagement model. TMG reliability engineers work alongside your maintenance, operations and engineering teams in structured workshops, combining their system knowledge with our analytical methodology. AvSim models emerge from genuine cross-functional collaboration.
We Train — You Do
For teams building internal simulation capability, TMG delivers structured AvSim training covering AWB software operation, availability theory, Fault Tree and RBD construction, Weibull data analysis, spares optimisation and SAP/Maximo integration. Public courses or dedicated onsite delivery.
Independent Review & Audit
TMG provides independent technical review of existing AvSim models, availability studies and regulatory submissions. We assess model architecture, failure distribution selection, maintenance rule logic, spares policy assumptions and output interpretation — particularly valuable ahead of AER regulatory determinations or investment board presentations.
Start Modelling With Confidence
Whether you are building your first AvSim model, validating an existing availability study, or need expert support preparing a regulatory submission — The Mantua Group is ready to help.
Contact Us Today+61 (0) 439 118 714
+1 (330) 294-3744