mechanical oscillograph

mechanical oscillograph

[mi′kan·ə·kəl ä′sil·ə‚graf]
(engineering)
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3 and 4), which is possible by using the AYO-IV Yerzley mechanical oscillograph, manufactured by Tavdi Company, Inc.
The static and dynamic moduli, the hysteresis losses and the logarithmic decrement were measured on a Yerzley mechanical oscillograph AYO-IV in accordance with ASTM D-945.
Table 1--Yerzley mechanical oscillograph tan delta (rolling resistance) and Pico abrasion index values of various compounds Tread vulcanizate properties using emulsion polymers containing isoprene Polymer Yerzley Pico abrasion IPST, Example tan delta index [mu]-wet Compound Bd/I/St * Rolling Wear Traction number resistance resistance 1 0/91/9 0.188 80 0.628 2 18/78/4 0.180 86 0.619 3 8/80/12 0.179 80 0.619 4 30/53/17 0.208 83 0.622 5 43/57/0 0.183 92 0.590 6 36/55/9 0.194 85 0.607 7 36/55/9 0.192 88 0.599 8 62/31/7 0.203 91 0.572 9 59/27/14 0.199 88 0.596 10 85/8/7 0.197 91 0.569 * Composition determined [13.sub.C] NMR.
1), the compounding department should develop suitable formulations, produce test samples and test on an AYO-IV Yerzley mechanical oscillograph (ref.
The original Yerzley mechanical oscillograph was developed to study dynamic properties of polychloroprene for the evaluation of these characteristics in applications such as vibration absorbers (ref.
The AYO-IV (Yerzley mechanical oscillograph) testing machine for dynamic testing of rubber is available from the company.
The latest version of the Yerziey mechanical oscillograph (AYO-IV) complies with this test method.
Yet another resilience method is ASTM D 945 (mechanical oscillograph), where resilience is obtained on a specimen in compression or shear.