Modern car seats are often equipped with adjustable lumbar supports for reducing fatigue and improving ride comfort in different driving conditions. Studies on the effect of lumbar support on seat dynamic performance and ride comfort are not often seen. This experimental study was designed to investigate how lumbar support affects static and dynamic characteristics of the driver seat of a sport...

Children who are too large for harness restraints but too small to obtain good restraint from a vehicle seatbelt alone should be seated in a belt-positioning booster. Boosters have been shown to significantly reduce abdominal injuries caused by seatbelts. This effectiveness may be due in part to the fact that boosters reduce the effective seat cushion length, allowing children to sit more comfo...

Glass-ceramic scaffolds mimicking the structure of cancellous bone were produced via sponge replication technique by using a polyurethane foam as template and glass powder below 30 lm as inorganic phase. Specifically, a SiO₂-based glass of complex composition and its corresponding P₂O₅-based "specular" glass were used as materials for scaffolding. The polymeric sponge was thermally removed and ...

Field robots are widely used to accomplish a variety of tasks in many different fields. However, setting of the locomotive ability of these robots at the design phase may prevent the traversal of unknown rough terrain. To address this shortcoming of existing robots, we designed a robot that is able to modify its environment by using polyurethane foam to construct auxiliary structures to facilit...

A concentrated sulfuric acid dissolution technique and a GC method are described for the estimation of tributyl phosphate, tris(2-chloroethyl) phosphate, tris(chloropropyl) phosphate, tris(1,3-dichloro-2-propyl) phosphate, triphenyl phosphate and tris(butoxyethyl) phosphate in soft polyurethane foam. A soft polyurethane foam sample containing organophosphoric acid triesters was dissolved in con...

The renewable PUF was prepared by the alcoholysis of the used polyurethane foam composite and the polyurethane foam composite was also prepared by alkali lignin and renewable PUF. The renewable PUF was examined by GC-MS, the results showed the renewable PUF mainly consists of glycol, propanol and 1, 2-Benzenedicarboxylic acid, which can directly be used as the raw material of polyurethane foam ...

The distance between the driver and the steeringwheel airbag module at the time of deployment has been identified as an important factor affecting the frequency and severity of airbag-induced injuries. Pre-crash positioning may influence the clearance at the time of deployment. Data from in-vehicle studies of driving posture were analyzed to determine the clearance between the steering wheel an...

Abstract With the booming development of smart wearable devices, flexible multifunctional composites with high sensitivity and well health therapy have evoked great interest for next-generation healthcare electronics. However, weak biocompatibility, low breathability, narrow sensing range greatly hinder sensors. Herein, a porous, conductive MXene/Polydimethylsiloxane/Polydopamine/Polyurethane S...

Seat pressure is known as a major factor of seat comfort in vehicles. In passenger vehicles, there is lacking research into the seat comfort of rear seat occupants. As accurate seat pressure measurement requires significant effort, simulation of seat pressure is evolving as a preferred method. However, analytic methods are based on complex finite element modeling and therefore are time consumin...