Multibody Systems
DynamicsDiscuss a project

Worked problems,
validated end to end.

Each study runs one problem through the whole chain: model, synthesis or design study, then dynamic validation with the numbers that decide whether it ships.

ENGINE NVH

Multi-cylinder engine NVH — balance shafts and active mounts

A multi-cylinder engine modelled as a coupled bank of slider-cranks. The dynamics solver decomposes the resulting shaking force and shaking moment into harmonic components — first, second, fourth, sixth — then drives a counterweight + balance-shaft co-design that flattens the dominant 1× and 2× signatures simultaneously. Same engine that synthesised the practica four-bar; same constraint Jacobian, same RK45 augmented solver.

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SUSPENSION

Quarter-car suspension — passive design space and active control

A quarter-car suspension model — sprung mass, unsprung mass, tyre stiffness, spring-damper — exercised across the same MBSD engine that runs four-bar synthesis and engine NVH. We sweep passive design space (spring rate, damper coefficient) on a ride-vs-handling Pareto front, then layer an active control loop on the same plant. One simulator, three tasks: design space exploration, road-profile response, and active-control tuning.

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LINKAGES

Three-position rigid-body guidance — a worked university practica

A three-position rigid-body guidance problem solved end-to-end — from DNI-keyed input through Burmester closed-form synthesis, all four defect filters, animated kinematics, and dynamic validation with joint reaction forces. Final design hits all three precision points at 0.0000 cm trace error and clears a 26.6° transmission-angle floor.

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