Product Design & Manufacturing

A: The 0.8 profile only means something if the datum simulates the real constraint. A non-functional primary datum lets the arm float during inspection, masking a geometric error that shows up as kinematic drift once bolted in.

A: The acceptance window is tight, and tire μ shifts easily by more than 3%. Homologation locks the tire variant first; everything else is second-order if the rubber isn’t what the type approval assumes.

A: ASIL safety goals are built on assumptions and margins. A 3% shift can eat into those margins, so the standard demands traceability and re-evaluation, not a gut call.

A: High-load-only compliance points to viscoelastic behavior. A small change in rubber formulation can move dynamic stiffness by a few percent without touching noise or static alignment.

A: Joint stiffness scales directly with clamp load, and the torque window already sits inside validation. You gain stiffness without touching geometry, tooling, or DFMEA structure.

A: MMC is the trigger. As the hole gets larger, you earn bonus tolerance equal to the size departure, which can hide a few tenths of mislocation.

A: The limit sits where stability risk starts, not where comfort complaints begin. A few degrees at the wheel can cascade into delayed yaw response at speed.

A: Thermal cycling drives relaxation and creep. You can lose a few percent of stiffness with zero visual damage, especially in polymers under preload.

A: 3% sits inside many test repeatability bands, but only if you prove setup control. A clean re-test protects functional safety, traceability, and your license to operate.