Engineering Insight. Delivered.
Multi-Body Dynamics & Vehicle Dynamics Simulation, On Demand
DSIM helps engineering teams validate a design in simulation before they commit to a physical prototype, catching costly problems early and keeping programs on time and on budget. We are an independent multi-body dynamics (MSC Adams) and vehicle dynamics simulation practice led by Darren Simoni, building multi-body models since 1996 for automotive OEMs, Tier-1 suppliers, and heavy-equipment makers, wheeled and tracked.
Typically responds within 24 hours.
New to the term? Multi-body dynamics (MBD) is physics-based simulation of a machine and all of its interconnected moving parts. Read the plain-language case →
Multi-body simulation since 1996 for teams at
Your On‑Demand Engineering Partner
At DSIM, we help engineering and product development teams accelerate innovation and improve product performance through multi-body simulation‑driven engineering. Our clients rely on us to provide deep expertise in areas they can’t or shouldn’t maintain in‑house, so they can make smarter design decisions, validate performance earlier, and bring products to market faster.
Darren Simoni, Principal
Building multi-body dynamics models since 1996: MSC Adams, wheeled and tracked vehicle dynamics, FEA, and correlation of models to physical test. Every DSIM engagement is his work directly. Darren is currently engaged on an active vehicle dynamics program and is taking on new engagements.
Deciding whether MBD belongs in your program? Read the honest case →
Our Core Expertise
DSIM delivers senior multi-body and vehicle dynamics capability exactly when a program needs it, without a full-time hire.
Multi‑Body Dynamics
Virtual testing of mechanical systems, assemblies, and complex mechanisms in MSC Adams.
Wheeled & Tracked Vehicle Dynamics
Suspension, handling, ride, and running-gear loads across wheeled platforms and tracked machines, including Pacejka/MF tire modeling, evaluated early to reduce costly physical testing.
Design Optimization & Trade‑Offs
Transform results into actionable design recommendations that improve reliability and performance.
Workflow Integration & Automation
Embed Multi-body simulation into your existing processes and development pipelines.
Tools and methods: MSC Adams multi-body simulation, complementary open-source solvers such as Project Chrono, Pacejka/MF tire models, FEA, and correlation of simulation models to physical test data.
Trusted Across Industries
We work with engineering and innovation teams where mechanical performance and system behavior are mission‑critical.
Automotive & Mobility
On‑ and off‑highway platforms, specialty vehicles, subsystems.
Heavy Equipment & Machinery
Construction, mining, agricultural, and material-handling machines, wheeled and tracked.
Industrial Systems & Mechanisms
Complex mechanical assemblies, robotics, motion‑driven products.
Why Teams Choose DSIM
Direct Access, Senior Only
Work directly with the senior engineer doing the analysis. No handoffs, no juniors, no bench overhead.
Scoped to Your Question
Engagements sized to one program question: a load case, a correlation gap, a design trade. Clear deliverables and timelines.
A Track Record You Can Check
Simulation work since 1996 with teams at the companies above, and published case studies you can read before we ever talk.
Proof
“Darren brought our simulation capacity to an entirely new level. We engineered an innovative hybrid mining shovel and validated new design and controls concepts through simulation, without spending excess money on tests.”
Engineering team, Joy Global Surface Mining
Case Study
Validating an Autonomous Tracked Vehicle Before Cutting Metal
MBD simulation with transient stress recovery validated the tracked vehicle before a prototype existed. Stratom built on time and under budget. Read the case study →
Case Study
Predicting Bucket Loads on a Machine That Did Not Exist Yet
Coupled EDEM and Adams simulation sized skid steer hydraulics from physics-based material loads at concept stage. Read the case study →
Have a Design to Validate? Or a Problem to Solve?
Two kinds of teams call DSIM. Some want a design proven in simulation before committing to hardware. Others already built the machine and have a problem they can’t explain: a vibration, an instability, a failure that testing alone won’t diagnose. If deep multi-body simulation or vehicle dynamics expertise isn’t part of your core team, we can help with both.
Typically responds within 24 hours.
info@dsimtech.com • Post Falls, Idaho, USA