Move from adesign question to adefensible answer.Move from adesign question to adefensible answer.

One offline Windows workspace for rapid component sizing, connected system studies, engineering assurance and traceable preliminary design.

63solver workbenches
289modes across all solvers
8engineering disciplines
100%local project control

Connected vehicle development

See the assembly.
Understand the response.

Vehicle Dynamics brings suspension geometry, steering, articulation controls, calculated graphs, and synchronized 2D/3D engineering views into one focused assembly.

Vehicle Dynamics Assembly

IncludesSuspension CAD·Motion playback·Calculated graphs

SCREENING / REVIEW
Current MetraBench Vehicle Dynamics Assembly with front and plan suspension views, scale-linked 3D geometry, articulation controls, and calculated response graphsCurrent MetraBench Vehicle Dynamics Assembly with front and plan suspension views, scale-linked 3D geometry, articulation controls, and calculated response graphs
01Geometry remains legible

Mechanical members stay distinct so the assembly can be reviewed without a body shell obscuring the working geometry.

02Motion stays coordinated

Bump, roll, steer, and combined articulation use one synchronized review workflow across the available views.

03Evidence remains connected

Calculated characteristics and response graphs remain tied to the active assembly inputs and review state.

02

From assembly to evidence

Open one subsystem.
See what the geometry changed.

The assembly is not a disconnected visual. MetraBench carries its suspension definition into the component calculation, then returns the trends, margins, and review state to the same vehicle record.

Calculated suspension component

Read the response.
Keep it tied to the assembly.

These coordinated curves use the released Vehicle Dynamics baseline: double-wishbone front, multi-link rear, and a ±75 mm rigid-link jounce sweep. Every axis, series, unit, and review boundary remains visible.

FRONTDouble wishboneREARMulti-linkSWEEP−75 to +75 mmFIDELITYScreening / Review
Camber response over jounce-75-50-250255075-4.0-2.5-1.00.52.0Jounce (mm; + = compression)Camber angle (deg)FrontRear
Toe response over jounce-75-50-250255075-0.100.000.100.200.30Jounce (mm; + = compression)Toe-in angle (deg)FrontRear
Damper motion over jounce-75-50-250255075-75-3803875Jounce (mm; + = compression)Damper deflection (mm)FrontRear
Roll-center migration-75-50-250255075607590105120Jounce (mm; + = compression)Roll-center height (mm)FrontRear
Geometry definition → component calculation → graph evidenceValues remain connected to one review record

From question to record

A workflow built for
engineering judgment.

MetraBench keeps the calculation, its context and its evidence together—from the first estimate through design review.

01

Define

Set project units, standards, safety factors, materials and shared load cases.

02

Calculate

Choose from guided solver modes with engineering-aware input checks.

03

Review

See governing margins, assumptions, warnings, equations and evidence status.

04

Document

Save revisions and export a traceable calculation package for review.

Spur Gear SolverCalculated graphs · Production defaults
Calculated graph workspaceSCREENING / REVIEW

Real solver evidence

See how geometry changes load, stress, margin, and speed.

This is the current Spur Gear Solver graph workspace rendered directly in the browser. Follow the blue default marker across the four views: a 20-tooth pinion drives a 60-tooth gear under 120 N·m input torque.

RATIO3.000 : 1PITCH DIAMETERS60 / 180 mmMESH FORCE4.00 kNBENDING REVIEW0.82 SF · Below target
01Bending stress vs face width
816243240100275450625800Face width (mm)Bending stress (MPa)Allowable 250 MPa20 mm · 305.6 MPa
Shows why a wider face shares tooth-root load across more material. The selected 20 mm face remains above the 250 MPa screening allowable.
02Tooth force components
TangentialRadialAxial01,0002,0003,0004,000Force componentForce (N)4,000 N1,455.9 N0 N
Resolves transmitted load at the pitch circle. Tangential force carries torque; radial force separates the gears; spur gears produce no axial force.
03Bending safety factor vs face width
8162432400.20.61.01.41.8Face width (mm)Bending safety factorTarget 1.50Default SF 0.82
Converts the stress trend into design margin. The default point is below the 1.50 review target, so geometry or loading must change.
04Speed and torque relationship
03386751,0131,3500113225338450Input speed (RPM)Output speed (RPM)Output torque 331.2 N·m900 → 300 RPM
Applies the 60:20 tooth ratio. Output speed is one third of input speed while ideal torque rises by the inverse ratio before efficiency loss.
Pinion 20 teeth · Gear 60 teeth · Module 3 mm · Face width 20 mmCalculated from the preserved equation path

Broad by design

One workbench.
Eight disciplines.

Replace scattered spreadsheets, bookmarks and single-purpose calculators with a consistent, project-aware engineering environment.

01

General

Unit conversion, uncertainty, sensitivity, comparison and reusable engineering foundations

02

Mechanical

Machine elements, drivetrains, fasteners, shafts, bearings and motion

03

Structures

Beams, columns, sections, joints, pressure vessels and fatigue

04

Fluids + thermal

Piping, pumps, hydraulics, heat transfer and thermal systems

05

Automotive

Suspension, tires, braking, aerodynamics, ride and transient handling

06

Manufacturing

Machining, welding, quality, sheet metal and tolerance analysis

07

Electrical

Circuits, motors, batteries, controls, sensors and power

08

Operations + quality

Production flow, process capability, reliability and quality engineering

Calculation reports

The result.
The reasoning.
The record.

Keep the problem definition, calculated results and selected graphs together in one readable report.

  • Start with the inputs.Loads, operating conditions, units and targets stay with the calculation.
  • Show what governs.Failed checks remain visible alongside the results and engineering context.
  • Carry the evidence.Selected graphs, assumptions and the equation source complete the record.
Open complete sample

Testing-version layout · Real default calculation
Sample only; not a customer project.

MetraBenchTesting version

MECHANICAL ENGINEERING / SAMPLE REPORT

Bearing operating-life report

Deep-groove ball bearing · Individual operating condition
FAILAdjusted rating life is below the 20,000 h target.
ResultValue
Bearing familySelected rolling-element arrangementDeep-groove ball
Adjusted rating lifeReliability and manual operating-condition modifier applied9,259.3 h
Equivalent dynamic load PEquivalent load for the individual operating condition5.000 kN
Equivalent static load P0Static load for the individual operating condition5.000 kN
Required dynamic rating CFor the selected target life64.633 kN
Static safety C0/P0Screening ratio; required value is application-specific8.000

Showing 6 of 21 results. The complete sample includes the full calculation context.

Screening calculation · Engineering review requiredPreview excerpt

Current workbench catalog

Explore the engineering
workbenches.

63solver workbenches
289modes across all solvers

Start with a curated selection from the current desktop registry. Expand the complete catalog when you need to search all 63 workbenches and 289 selectable calculation modes.

Spur, helical, bevel, worm, rack, internal, herringbone, and planetary geometry, force, strength, and ratio screening.

Acceleration, grade, range, drag, cooling, steady-state handling, load transfer, transient yaw, sideslip, and stability.

Rolling-bearing rating life, load factors, lubrication, and static safety plus separate hydrodynamic plain-journal pressure, PV, film, clearance, and heat screening.

Beam reactions, shear, moment, stress, slope, deflection, vibration, and Euler buckling.

Multilayer conduction, convection and radiation boundaries, heat duty, interface temperatures, U-value, and transient thermal response.

AC/DC power, voltage drop, motor acceleration, battery runtime, and transformer fault current.

Two-plane reactions, combined stress and fatigue, required diameter, deflection, twist, buckling, and critical speed.

Rack-and-pinion travel, steering ratio, Ackermann wheel angles, turning circle, tie-rod geometry, and driver-effort screening.

Dimension-checked mechanical, thermal, fluid, electrical, and time unit conversion.

Monte Carlo tolerance propagation, confidence intervals, and sensitivity ranking.

Questions

Know where
MetraBench fits.

Is MetraBench a replacement for FEA or CFD?+

No. MetraBench is designed for rapid sizing, screening, system studies and traceable preliminary calculations. High-fidelity simulation and physical testing remain essential where the design risk requires them.

Does it require an internet connection?+

Core calculations and local project work are designed to run offline. This helps teams retain control of sensitive project information.

Can calculations be reviewed later?+

Yes. Projects preserve calculation context, revisions, assurance information and report-ready engineering records.

Which platform will be supported first?+

The initial release is designed for 64-bit Windows as a signed desktop application and installer.

MetraBench for Windows · Coming soon

Build faster.
Review with confidence.

MetraBench is being prepared for its first public Windows release. Early-access participants will receive product updates, release timing, and instructions when preview availability opens.

Windows desktopInitial platformLocal-firstProjects remain on your systemScreening / ReviewHonest engineering fidelity
EARLY ACCESSBe first to try MetraBench.

Request early-access updates from Design Driven Works LLC. No payment information is collected. Support questions can be sent to info@metrabench.com.

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