By using the equivalent model,contact force of ideal trochoid transmission was calculated,and the calculation result agree relatively well with a theoretical one.
In the analysis a 2 dimension element is combined with the boundary punition element(spring element) to calculate stress distribution at the periphery of a tunnel.
A method based on the resistance-displacement relationship of shape memory alloy(SMA) spring that can adjust the nonaxiality of small-diameter pipe inner surface inspection sensor is proposed.
Coldcut blade is made in special steel and adopts spring minitrim installation,which make the product wear well and bring more convenient for producing prod-ucts in various thickness.
These mail-wagons were two-wheeled cabriolets, upholstered inside with fawn-colored leather, hung on springs, and having but two seats, one for the postboy, the other for the traveller.