Underframes TRIZ Cases

Segmenting the transport device into a durable chassis and interchangeable cargo carriers lowers manufacturing costs while maintaining service life.

Segmenting the chassis into adjustable modules resolves space waste from fixed sizes while maintaining structural strength.

Curved longitudinal beams project through a hinged transverse member to position secondary springs laterally.

An underbody support framework lowers the center of gravity by mounting heavy devices on a U-shaped beam, reducing total car weight.

Chassis-mounted noise barriers absorb acoustic waves to cut intercar transmission by 5 to 25 dB.

An integrated drain pan forms a recessed portion in the composite railcar floor assembly.

Segmented bottom surfaces create wheel clearance, allowing a lowered torque box design that reduces moment arm stress on freight railcars.

Rotatable pivot bearing mounts rail vehicle underframe end pieces to the central carrier for modular assembly.

Blocking surfaces on the elongated body create a stabilizing moment that prevents anti-climbing and jack-knifing during excessive rotation.

Longitudinal notches in the bogie upstream wall break vortex releases, eliminating sound absorption materials and maintenance complexity.

Elevating traction links above the frame resolves pitching and unequal load distribution among axles.

Pivotable support rotates to position lifting points outside the vehicle structure, accommodating non-standard designs without adapters.

Trough-shaped fastening structures grip container edges to secure underfloor equipment mounting on rail vehicle support frames.

Pre-assembled self-supporting function modules with predefined interfaces eliminate welding and reduce assembly time on work vehicles.

Segmented flange plates transmit longitudinal and vertical loads through distinct contact surfaces.

Segmenting the guide frame reduces lateral load on guide wheels, preventing breakage while maintaining structural strength.

Pivotal links transfer tractive forces between the frame and equalizer, reducing pedestal wear by allowing relative movement without complex rebuilding.

Integrating air ducts into the car body wall creates a closed flow circuit that dissipates heat from electronics without external filters or noise pollution.

A lifting device raises the car body to insert shims between coupling elements and supporting structures.

A connecting piece with external threading links the air spring gas chamber to the profile chamber, eliminating internal threads for easier maintenance.

Replacing metal wedges with replaceable polymeric pads eliminates pocket side wall wear while maintaining truck squareness and reducing hunting vibrations.

A locomotive cab isolation system uses a rear pivot and front-mounted springs to reduce engine-induced vibration sensitivity.

Segmented side portions pivot to conform to support contours, expanding width within clearance limits to boost capacity.

A rail vehicle underframe integrates a yaw damper receiving portion along side and bolster beams to transmit oscillating forces from the bogie.

Variable cross-section bolster ribs resist torsion and bending loads while reducing weight and creating space for wiring.

Segmented housing with cutouts reduces rivet count, lowering manufacturing costs while maintaining structural strength.

Segmented bolster connection points and radial rib structures resist torsional deformation while reducing weight and creating space for underframe wiring.

Segmented bracket design prevents device carrier detachment from rail vehicle beams during vibration.

Friction modifying inserts transfer material to form a lubrication layer, reducing wear and maintenance costs in high friction railroad car components.

Standardized underfloor components attach to diverse rail vehicle bodies via interchangeable fastening elements.

A locomotive bolster system uses continuous weld seams oriented perpendicular to the truck rotation axis to interconnect the body with underframe plates.

A rail vehicle undercarriage monocoque floor plate incorporates longitudinally running stiffeners to form internal assembly spaces for supply lines.

Composite fiber tie rods replace heavy metal components to resolve weight and volume contradictions in powered rail bogie assemblies.

Through-frame reinforcing tubes eliminate bulky center sills and reduce construction costs.

A vehicle suspension spring system generates separation forces to transfer weight between axles.

An additional carrier transmits bogie coupling forces into the carriage body underframe, eliminating cranked brackets and reducing production effort.

Segmented center sill thickness reduces hopper car weight while maintaining structural strength against loads through strategic reinforcement placement.

Removing traditional side sills reduces gondola car weight while maintaining structural integrity through integrated load paths.

Tuned mass dampers oscillate in phase opposition to cancel vibration energy, enabling high-speed stability for two-axle locomotives.

A two-piece model railroad truck frame uses a central retainer to join identical portions for automated assembly.

Vertical springs transfer forces between equalizer and frame, reducing pedestal wear and maintenance costs.

Protruding the transverse beam lower chord beyond web elements delays airflow detachment, reducing shear layer expansion and drag on high-speed rail vehicles.

A roll-bent underframe boundary beam with an inclined side face and concave platen simplifies assembly of drum-shaped railway vehicle bodies.

Integrated box underframe end structure resolves bogie interface complexity while transmitting compressive loads exceeding 1500 kN.

Segmented underframes and universal coupling apparatus enable rapid container swapping to match commodity cycles without compromising structural integrity.

Links with variable stiffness bushings enable radial adjustment of wheelsets, eliminating steering linkages that increase weight and cost.

An intermediate frame with predefined mounting interfaces reduces machining effort by eliminating complex multi-point attachment structures on the car body.

A towing block with four channels guides ropes to form secure knots that distribute tension evenly across railcars.

A rail bogie motor mount uses conical springs and a core pin to support linear induction motors.